CN109309398B - Processing method and power supply device - Google Patents

Processing method and power supply device Download PDF

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Publication number
CN109309398B
CN109309398B CN201811160978.9A CN201811160978A CN109309398B CN 109309398 B CN109309398 B CN 109309398B CN 201811160978 A CN201811160978 A CN 201811160978A CN 109309398 B CN109309398 B CN 109309398B
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Prior art keywords
battery
state
battery pack
branches
branch
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CN201811160978.9A
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Chinese (zh)
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CN109309398A (en
Inventor
沈帅妍
赵双成
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/448—End of discharge regulating measures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0021—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The embodiment of the application discloses a processing method and a power supply device, wherein the processing method monitors state parameters of a battery device when the battery device is in a working state, if the state parameters of the battery device meet a first condition, the working state of the battery device is kept, the working mode of the battery device is regulated, and the battery device is switched from the working state to a non-working state until the current state of the battery device meets a second condition, so that the battery device is differentially processed according to the state parameters of the battery device.

Description

Processing method and power supply device
Technical Field
The present application relates to the field of battery technologies, and in particular, to a processing method and a power supply device.
Background
With the development of electronic technology, various portable electronic devices have been developed, and batteries are used as main driving sources of the electronic devices, which directly affect the user experience of the electronic devices. The working modes of the existing battery device are only one, and the diversified requirements are not met.
Disclosure of Invention
In order to solve the problems, the embodiment of the application provides the following technical scheme:
A method of processing, comprising:
if the battery device is in a working state, monitoring state parameters of the battery device;
if the state parameter of the battery device meets a first condition, maintaining the working state of the battery device and adjusting the working mode of the battery device;
and if the current state of the battery device meets the second condition, switching the battery device from the working state to the non-working state.
Optionally, the monitoring the state parameter of the battery device includes: monitoring a target condition of the battery device;
if the target condition meets the first condition, maintaining the working state of the battery device; and if the target condition meets the second condition, switching the battery device from the working state to the non-working state.
Optionally, the battery device includes: the battery pack comprises a first battery pack and a second battery pack which are connected in series, wherein any battery pack comprises a plurality of battery branches connected in parallel, and each battery branch comprises a battery unit and a battery switch which are connected in series;
the target conditions include: the number of battery branches in an open state in the first battery pack and the number of battery branches in an open state in the second battery pack;
The first condition includes: the number of the battery branches in the open-circuit state in at least one of the first battery pack and the second battery pack is larger than zero, and the number of the battery branches in the open-circuit state in the first battery pack and the number of the battery branches in the open-circuit state in the second battery pack are smaller than a first preset value;
the second condition includes: the number of the battery branches in the open circuit state in the first battery pack or the number of the battery branches in the open circuit state in the second battery pack is not smaller than the first preset value.
Optionally, the adjusting the operation mode of the battery device includes:
and adjusting the circuit connection state inside the battery device.
Optionally, if the battery device is in a charging operation state, the adjusting the operation mode of the battery device further includes:
and adjusting a charging current parameter of the battery device.
Optionally, the battery device includes: the battery pack comprises a first battery pack and a second battery pack which are connected in series, wherein any battery pack comprises a plurality of battery branches connected in parallel, and each battery branch comprises a battery unit and a battery switch which are connected in series;
the adjusting the circuit connection state inside the battery device includes:
And adjusting the working state of a battery switch of at least one battery branch in the plurality of battery branches to adjust the circuit connection state inside the battery device.
Optionally, the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches includes:
based on the current state of each battery branch of the preset battery pack in the first battery pack and the second battery pack, adjusting the working state of a battery switch of each battery branch in the other battery pack;
the preset battery packs are battery packs with a large number of battery branches in an open circuit state in the first battery pack and the second battery pack.
Optionally, the adjusting the working state of the battery switch of each battery branch in the other battery group based on the current state of each battery branch of the preset battery group in the first battery group and the second battery group includes:
determining the number of battery branches in an open circuit state in another battery pack based on the number of battery branches in the open circuit state in the preset battery pack;
and determining the battery branch in the conducting state and the open circuit state in the other battery group based on the impedance of the battery branch in the conducting state in the preset battery group.
Optionally, the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches further includes:
if the impedance difference value between the impedance of the first battery branch in the on state in the preset battery pack and the impedance of any battery branch in the other battery pack exceeds a second preset value, a battery switch in the first battery branch is disconnected.
Optionally, the non-operating state refers to a state in which the battery device cannot establish electrical connection with an external device.
Optionally, the operating state includes at least one of a charging state and a discharging state;
if the operating state of the battery device is in a charged state, switching the battery device from the operating state to a non-operating state includes:
disconnecting the charging path of the battery device, so that the battery device is switched from an operating state to a non-operating state;
if the operating state of the battery device is in a discharge state, switching the battery device from the operating state to a non-operating state includes:
and disconnecting the discharging path of the battery device, so that the battery device is switched from the working state to the non-working state.
A power supply device comprising a battery device and a processing device for performing the steps of:
If the battery device is in a working state, monitoring state parameters of the battery device;
if the state parameter of the battery device meets a first condition, maintaining the working state of the battery device and adjusting the working mode of the battery device;
and if the current state of the battery device meets the second condition, switching the battery device from the working state to the non-working state.
Compared with the prior art, the technical scheme has the following advantages:
according to the technical scheme provided by the embodiment of the application, when the battery device is in the working state, the state parameters of the battery device are monitored, if the state parameters of the battery device meet the first condition, the working state of the battery device is kept, the working mode of the battery device is regulated, and the battery device is switched from the working state to the non-working state until the current state of the battery device meets the second condition, so that the battery device is differentially processed according to the state parameters of the electronic device, and the diversified requirements are met.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a processing method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a battery device to which the processing method according to an embodiment of the present application is applied;
FIG. 3 is a flowchart of a processing method according to another embodiment of the present application;
FIG. 4 is a flowchart of a processing method according to another embodiment of the present application;
fig. 5 is a schematic structural diagram of a battery device to which a processing method according to another embodiment of the present application is applied;
fig. 6 is a schematic structural diagram of a power supply device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power supply device according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
The embodiment of the application provides a processing method, as shown in fig. 1, which comprises the following steps:
s1: if the battery device is in a working state, monitoring state parameters of the battery device;
s2: if the state parameter of the battery device meets a first condition, maintaining the working state of the battery device and adjusting the working mode of the battery device;
s3: and if the state parameter of the battery device meets a second condition, switching the battery device from the working state to the non-working state.
In the embodiment of the present application, the operating state refers to a state in which the battery device can establish electrical connection with an external device, including a power supply state (electrically connected with the external device and supplying power to the external device) and/or a charging state (electrically connected with the external device and charging the battery device with the external device), and the non-operating state refers to a state in which the battery device is disconnected from the electrical connection with the external device and cannot establish electrical connection with the external device, that is, cannot be charged and/or discharged any more, that is, cannot establish electrical connection even when the battery device is connected with the external device, and loses the capability of establishing electrical connection with the external device.
Optionally, on the basis of the foregoing embodiment, in one embodiment of the present application, the operation modes of the battery device include at least two operation modes, so that the battery device may be differentially processed according to the state parameters of the electronic device by adjusting the operation modes of the battery device, so as to meet diversified requirements
It should be noted that, in the embodiment of the present application, the current that can be interacted between the battery device and the external device in different operation modes is different in the at least two operation modes, but the present application is not limited thereto, and in other embodiments of the present application, the voltage that can be interacted between the battery device and the external device in different operation modes in the at least two operation modes is different, which is specific depending on the situation.
On the basis of the above embodiments, in one embodiment of the present application, the battery device being in an operating state includes the battery device being in a charged state; in another embodiment of the application, the battery device being in an operational state comprises the battery device being in a discharge state; in yet another embodiment of the present application, the battery device being in an operating state includes the battery device being in a charged state or the battery device being in a discharged state, and the present application is not limited thereto, as the case may be.
As can be seen from the above, in the processing method provided by the embodiment of the present application, the working modes of the battery device include at least two working modes, so that the battery device can be differentially processed by adjusting the working modes of the battery device according to the state parameters of the electronic device, thereby meeting diversified requirements.
On the basis of any one of the foregoing embodiments, in one embodiment of the present application, monitoring the state parameter of the battery device includes: and monitoring a target condition of the battery device, if the target condition meets the first condition, maintaining the working state of the battery device, and if the target condition meets the second condition, switching the battery device from the working state to the non-working state, so that the control of the working state and/or the working mode of the battery device is realized by monitoring the same condition of the battery device.
It should be noted that, when the battery device is in a non-fault state, the battery management unit needs to detect the open circuit condition of the battery cells, and once any one of the battery cells is found to be in the open circuit state, the fuse is controlled to fuse, so as to disconnect the electrical connection relationship between the battery device and the external device, the battery management unit is permanently disabled, and the battery device cannot be used any more, which also makes the service life of the battery device shorter and the rejection rate higher.
In addition, in the practical use process, the open circuit of the battery unit is caused by a plurality of reasons, such as false triggering, damage to the conductive film in the battery device, and the like, so that the probability of open circuit of the battery unit is high. If once one battery unit in the battery device is in open circuit, the electric connection relation between the whole battery device and external equipment is disconnected, and the whole battery device is scrapped, so that the battery unit which is in open circuit is scrapped, and other battery units which are not damaged are scrapped, and the battery unit is wasted.
Based on this, on the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 2, the battery device includes: the first battery pack 10 and the second battery pack 20 connected in series, each of which includes a plurality of parallel battery branches including battery cells and battery switches connected in series, so that the on and off of each battery branch can be independently controlled by controlling the battery switches in each of the battery branches.
Specifically, the first battery pack 10 includes a plurality of parallel first battery branches, the first battery branches include a first battery unit 11 and a first battery switch 12 connected in series, the second battery pack includes a plurality of parallel second battery branches, the second battery branches include a second battery unit 21 and a second battery switch 22 connected in series, where the first battery switch 12 is used to control on and off of the first battery branch where the first battery switch is located, and the second battery switch 22 is used to control on and off of the second battery branch where the second battery switch is located. Optionally, the control switch is a MOS transistor, but the present application is not limited thereto, and is specifically determined according to circumstances.
In the embodiment of the application, the target conditions include the number of battery branches in an open state in the first battery pack and the number of battery branches in an open state in the second battery pack; the first condition includes: the number of the battery branches in the open-circuit state in at least one of the first battery pack and the second battery pack is larger than zero, and the number of the battery branches in the open-circuit state in the first battery pack and the number of the battery branches in the open-circuit state in the second battery pack are smaller than a first preset value; the second condition includes: the number of the battery branches in the open circuit state in the first battery pack or the number of the battery branches in the open circuit state in the second battery pack is not smaller than the first preset value.
Specifically, in the embodiment of the present application, if the number of battery branches in the open circuit state in the first battery pack and the number of battery branches in the open circuit state in the second battery pack are both zero, the working state of the battery device is maintained, and the current working mode of the battery device is maintained. And if the number of the battery branches in the open state in at least one of the first battery pack and the second battery pack is greater than zero, and the number of the battery branches in the open state in the first battery pack and the number of the battery branches in the open state in the second battery pack are both smaller than a first preset value, maintaining the working state of the battery device, and adjusting the working mode of the battery device. And if the number of the battery branches in the open state in the first battery pack or the number of the battery branches in the open state in the second battery pack is not smaller than the first preset value, switching the battery device from the working state to the non-working state, so as to disconnect the electrical connection between the battery device and the external equipment, and enabling the battery device to no longer establish the electrical connection with the external equipment.
Therefore, according to the processing method provided by the embodiment of the application, when the battery device has the battery branch in the open state, the battery device is not directly scrapped, but when the number of the battery branches in the open state in each battery pack is smaller than the first preset value, the working state of the battery device is kept by adjusting the working mode of the battery device, and only when the number of the battery branches in the open state in at least one battery pack in the battery device is not smaller than the first preset value, the working state of the battery device is switched, and the battery device is scrapped, so that the battery device is differentially processed according to the state parameters of the battery device, the service life of the battery device is prolonged, and the scrapping rate of the battery device is reduced.
Specifically, in the processing method provided by the embodiment of the application, the battery switch is connected in series in each battery branch of the battery device, so that when the current state of the battery device meets the first condition, the working mode of the battery device can be adjusted through the battery switch in each battery branch of the battery device, the working state of the battery device is kept, the service life of the battery device is prolonged, and the rejection rate of the battery device is reduced.
Optionally, on the basis of the foregoing embodiment, in one embodiment of the present application, monitoring the target condition of the battery device includes: the target condition of the battery device is monitored by monitoring the current and/or voltage in the battery device, but the application is not limited thereto, as the case may be.
On the basis of any one of the foregoing embodiments, in one embodiment of the present application, the adjusting the operation mode of the battery device includes: and adjusting the circuit connection state inside the battery device. Optionally, in an embodiment of the present application, adjusting the operation mode of the battery device includes: and adjusting the electric connection relation of each battery branch in the battery device by adjusting the on and off states of each battery branch in the battery device, thereby realizing the adjustment of the circuit connection state inside the battery device.
On the basis of the above embodiments, in one embodiment of the present application, the battery device includes: the battery pack comprises a first battery pack and a second battery pack which are connected in series, wherein any battery pack comprises a plurality of battery branches connected in parallel, and each battery branch comprises a battery unit and a battery switch which are connected in series;
The adjusting the circuit connection state inside the battery device includes:
and adjusting the working state of a battery switch of at least one battery branch in the plurality of battery branches, adjusting the on and off states of each battery branch of the battery device, and adjusting the electric connection relation of each battery branch in the battery device so as to adjust the circuit connection state inside the battery device. The working states of the battery switch comprise an on state and an off state.
Specifically, on the basis of the foregoing embodiments, in one embodiment of the present application, the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches includes:
and adjusting the working state of a battery switch of each battery branch in the other battery pack based on the current state of each battery branch of the preset battery pack in the first battery pack and the second battery pack to realize the adjustment of the working mode of the battery device, wherein the preset battery pack is one with more battery branches in an open circuit state in the first battery pack and the second battery pack.
Specifically, if the number of battery branches in the open circuit state in the first battery pack is greater than the number of battery branches in the open circuit state in the second battery pack, the preset battery pack is the first battery pack, and the adjusting the working state of the battery switch of at least one battery branch in the plurality of battery branches includes: and adjusting the working state of the battery switch of each battery branch in the second battery pack based on the current state of each battery branch in the first battery pack, so as to adjust the current state of each battery branch in the second battery pack. The current state of each battery branch comprises the state that the battery branch is in a conducting state or the state that the battery branch is in an open circuit.
If the number of the battery branches in the open circuit state in the first battery pack is smaller than the number of the battery branches in the open circuit state in the second battery pack, the preset battery pack is the second battery pack, and the adjusting the working state of the battery switch of at least one battery branch in the plurality of battery branches comprises: and adjusting the working state of the battery switch of each battery branch in the first battery group based on the current state of each battery branch in the second battery group, thereby adjusting the current state of each battery branch in the first battery group.
If the number of the battery branches in the open circuit state in the first battery pack is equal to the number of the battery branches in the open circuit state in the second battery pack, the preset battery pack may be the first battery pack or the second battery pack, which is not limited in the present application, and the present application is specifically determined according to the situation.
On the basis of any one of the foregoing embodiments, in one embodiment of the present application, adjusting the operating state of the battery switch of each battery branch in the other battery group based on the current state of each battery branch of the preset battery group in the first battery group and the second battery group includes:
Determining the number of the battery branches in the open state in another battery pack based on the number of the battery branches in the open state in the preset battery pack, so that the number of the battery branches in the open state in the preset battery pack is the same as the number of the battery branches in the open state in the other battery pack;
and determining the battery branches in the conducting state and the open-circuit state in the other battery group based on the impedance of the battery branch in the conducting state in the preset battery group, so that the battery branches in the conducting state in the other battery group are respectively matched with the impedance of the battery branch in the conducting state in the preset battery group, and the aging of the battery device is slowed down.
The processing method provided by the embodiment of the application is described below with reference to specific embodiments. In an embodiment of the present application, the battery device includes a first battery pack and a second battery pack connected in series, the first battery pack includes M parallel battery branches, the second battery pack includes N parallel battery branches, and optionally, M is equal to N, and the method includes:
as shown in fig. 3, monitoring the working state of the battery device, and determining whether a battery branch in an open state exists in the battery device;
If the battery device does not have a battery branch in an open circuit state, maintaining the current working state and working mode of the battery device;
if a battery branch in an open state exists in the battery device, determining whether the battery branch in the open state is positioned in the first battery group or the second battery group;
if only the battery branch in the open-circuit state exists in the first battery pack in the battery device and the battery branch in the open-circuit state does not exist in the second battery pack, the first battery pack is the preset battery pack;
judging whether the number M1 of the battery branches in the open circuit state in the first battery pack is smaller than a first preset value K or not;
if the number M1 of the battery branches in the open state in the first battery pack is not smaller than a first preset value K, switching the battery device from a working state to a non-working state;
if the number M1 of the battery branches in the open state in the first battery pack is smaller than a first preset value K, determining the number m2=m-M1 of the battery branches in the conductive state in the first battery pack, and determining the battery branches in the conductive state in the second battery pack based on the number and the impedance of each battery branch in the conductive state in the first battery pack, wherein the specific determining method comprises: selecting a first battery branch in a conducting state from all battery branches in a conducting state in the first battery pack, selecting a second battery branch in a conducting state from all battery branches in a conducting state in the second battery pack, and keeping the conducting state of the second battery branch if the difference between the impedance of the second battery branch and the impedance of the first battery branch does not exceed a second preset value; according to the method, the second battery branches corresponding to the first battery branches in the on state in the first battery group are selected from the second battery group, the on states of the second battery branches are maintained, the on states of other second battery branches are disconnected, and the adjustment of the circuit connection state in the battery device is realized, so that the aging of the battery unit is accelerated under the condition that the impedance of the first battery group and the impedance of the second battery group are unbalanced.
As shown in fig. 4, if there are battery branches in an open state in both the first battery pack and the second battery pack in the battery device, determining the number M1 of battery branches in an open state in the first battery pack and the number N1 of battery branches in an open state in the second battery pack;
judging whether the number M1 of the battery branches in the open circuit state in the first battery pack is smaller than a first preset value K or not;
judging whether the number N1 of the battery branches in the open circuit state in the second battery pack is smaller than a first preset value K or not;
if the number M1 of the battery branches in the first battery pack in the open state is not less than K (i.e. M1 is equal to K or M1 is greater than K) or the number N1 of the battery branches in the second battery pack in the open state is not less than K (i.e. N1 is equal to K or N1 is greater than K), the current state of the battery device meets a second condition, so that the battery device is switched from the working state to the non-working state;
comparing the sizes of M1 and N1 if the number M1 of the battery branches in the open state in the first battery pack is smaller than K and the number N1 of the battery branches in the open state in the second battery pack is smaller than K;
If M1 is larger than N1, the first battery pack is a preset battery pack, and the battery branches in the conducting state in the second battery pack are determined based on the number and the impedance of the battery branches in the conducting state in the first battery pack; if M1 is smaller than N1, the second battery pack is a preset battery pack, and based on the number and the impedance of each battery branch in the on state in the second battery pack, the battery branch in the on state in the first battery pack is determined, and the first battery pack is taken as the preset battery pack for example to continue description;
determining the battery branches in the second battery pack in the conducting state based on the number and the impedance of the battery branches in the first battery pack in the conducting state includes: selecting a first battery branch in a conducting state from all battery branches in a conducting state in the first battery pack, selecting a second battery branch in a conducting state from all battery branches in a conducting state in the second battery pack, and keeping the conducting state of the second battery branch if the difference between the impedance of the second battery branch and the impedance of the first battery branch does not exceed a second preset value; according to the method, the second battery branches corresponding to the first battery branches in the on state in the first battery group are selected from the second battery group, the on states of the second battery branches are maintained, the on states of other second battery branches are disconnected, and the adjustment of the circuit connection state in the battery device is realized, so that the aging of the battery unit is accelerated under the condition that the impedance of the first battery group and the impedance of the second battery group are unbalanced.
It should be noted that, on the basis of the foregoing embodiments, in one embodiment of the present application, the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches further includes:
if the difference value between the impedance of the first battery branch in the on state and the impedance of any battery branch in the other battery group exceeds a second preset value, the battery switch in the first battery branch is disconnected, so that the first battery branch is in an open state, and the aging of the battery unit is accelerated under the condition that the impedance of the first battery branch and the impedance of the second battery branch corresponding to the first battery branch in the second battery group are unbalanced.
As can be seen from the above, the operating state of the battery device includes a charging state and/or a discharging state. It should be noted that, if the battery device is in a discharging state, the current or voltage output by the battery device depends on an external device (to be charged) electrically connected to the battery device, and taking the output current of the battery device as an example, if the external device needs a current of I1, the output current of the battery device is I1, and if the external device needs a current of I2, the output current of the battery device is I2, as long as the current needed by the external device does not exceed the maximum current that can be output by the battery device.
If the battery device is in a charged state, the current input by the battery device depends on the current required by the battery device, and the external device provides the charging current to the battery device by reading the current value required by the battery device, in which, if the circuit connection state inside the battery device is changed, the adjusting the operation mode of the battery device further includes: and adjusting the charging current parameter of the battery device to change the charging current of the battery device, so as to avoid the condition that the charging current provided by the peripheral equipment is larger than the charging current required by the battery device, and the battery device is burnt.
Specifically, if M1 is greater than N1, the first battery pack is a preset battery pack, and based on the number and the impedance of each battery branch in the on state in the first battery pack, the battery branch in the on state in the second battery pack is determined, and when the charging current parameter of the battery device is adjusted, the adjusted charging current parameter I and the charging current parameter I0 before adjustment satisfy the following relationship: i=i0× (M-M1)/m=i0×m2/M;
if M1 is smaller than N1, the second battery pack is a preset battery pack, and based on the number and the impedance of each battery branch in the on state in the second battery pack, determining the battery branch in the on state in the first battery pack, and when the charging current parameter of the battery device is adjusted, the adjusted charging current parameter I and the charging current parameter I0 before adjustment satisfy the following relationship: i=i0× (N-N1)/N. =i0× (M-N1)/M.
It should be noted that, although the above embodiments take the case that the battery device includes two battery packs, i.e., the first battery pack and the second battery pack, in series, to describe the processing method, the present application is not limited to this, and in other embodiments of the present application, the battery device may further include more battery packs in series, and the principle of adjusting the working mode of the battery device and/or controlling the working state of the battery device is similar to that of the above embodiments, and the present application will not be repeated.
On the basis of any one of the above embodiments, in one embodiment of the present application, if the operating state of the battery device is in the charged state, switching the battery device from the operating state to the non-operating state includes: disconnecting the charging path of the battery device, so that the battery device is switched from an operating state to a non-operating state; if the operating state of the battery device is in a discharge state, switching the battery device from the operating state to a non-operating state includes: and disconnecting the discharging path of the battery device, so that the battery device is switched from the working state to the non-working state.
Specifically, on the basis of the above-mentioned embodiment, in one embodiment of the present application, as shown in fig. 5, the battery device is electrically connected to an external apparatus through a control switch 30, and the disconnecting the charging path of the battery device includes: opening the control switch 30 so that the battery device and the external device are in an open state; similarly, the disconnecting the discharge path of the battery device also includes: the control switch 30 is turned off so that the battery device and the external device are in an open state. Optionally, the control switch 30 is a fuse, so that the charging path or the discharging path of the battery device is disconnected by blowing the fuse, but the present application is not limited thereto, and the present application is specifically limited as the case may be.
It should be noted that, the non-fault state of the battery device includes, in addition to the charging state and/or the discharging state, a dormant state, where the dormant state refers to that the battery device is not damaged, and is electrically connected with the external charging device to be charged, and is capable of supplying power to the external charging device to be charged, but is in an uncharged state and an uncharged state at present, where the battery device is in an energy-depleted state and/or a normally-off state, and the battery device is in an energy-depleted state, that is, a so-called mobile phone is not powered, and the battery device is in a normally-off state, that is, a so-called mobile phone is turned off. The processing method provided by the embodiment of the application is also applicable when the battery device is in the dormant state, so that in an alternative embodiment of the application, the working state of the battery device also comprises the dormant state.
As can be seen from the above, the processing method provided by the embodiment of the present application can differentially process the battery device according to the state parameters of the battery device, thereby meeting diversified requirements.
In addition, in the processing method provided by the embodiment of the application, when the battery device has the battery cells in the open circuit state, if the number of the battery cells in the open circuit state in the battery device meets the first condition, the working state of the battery device is kept, and the working mode of the battery device is regulated, so that the undamaged battery cells are continuously used, the electric connection between the battery device and the external equipment is not directly disconnected, the whole battery device is scrapped, and the electric connection between the battery device and the external equipment is not disconnected until the number of the battery cells in the open circuit state in the battery device reaches the second condition, so that the whole battery device is scrapped, thereby prolonging the service life of the battery device, reducing the rejection rate of the battery device and improving the user experience.
Correspondingly, the embodiment of the application also provides a power supply device, as shown in fig. 6 and 7, comprising a battery device 100 and a processing device 200, wherein the processing device 200 is used for executing the following steps:
monitoring a state parameter of the battery device 100 if the battery device 100 is in an operating state;
if the state parameter of the battery device 100 satisfies a first condition, maintaining the operating state of the battery device 100 and adjusting the operating mode of the battery device 100;
if the current state of the battery device 100 satisfies the second condition, the battery device 100 is switched from the operating state to the non-operating state.
In the embodiment of the present application, the operating state refers to a state in which the battery device can establish electrical connection with an external device, including a power supply state (electrically connected with the external device and supplying power to the external device) and/or a charging state (electrically connected with the external device and charging the battery device with the external device), and the non-operating state refers to a state in which the battery device is disconnected from the electrical connection relationship with the external device, and cannot establish electrical connection with the external device, that is, cannot be recharged and/or discharged, that is, cannot establish electrical connection even if the battery device is connected with the external device, and loses the capability of establishing electrical connection with the external device.
Optionally, on the basis of the foregoing embodiment, in one embodiment of the present application, the working modes of the battery device include at least two working modes, so as to adjust the working modes of the battery device according to the state parameters of the battery device, and differentially process the battery device, so as to meet diversified requirements.
It should be noted that, in the embodiment of the present application, the current that can be interacted between the battery device and the external device in different operation modes is different in the at least two operation modes, but the present application is not limited thereto, and in other embodiments of the present application, the voltage that can be interacted between the battery device and the external device in different operation modes in the at least two operation modes is different, which is specific depending on the situation.
On the basis of any one of the above embodiments, in one embodiment of the present application, the operating state of the battery device includes a charging state and/or a discharging state, but the present application is not limited thereto, and is specifically limited thereto as the case may be.
As can be seen from the above, in the power supply device provided by the embodiment of the present application, the working modes of the battery device include at least two working modes, so that the working modes of the battery device can be adjusted according to the state parameters of the electronic device, and the battery device is differentially processed, thereby meeting diversified requirements.
On the basis of any one of the foregoing embodiments, in one embodiment of the present application, the processing device is specifically configured to: and monitoring a target condition of the battery device, if the target condition meets the first condition, maintaining the working state of the battery device, and if the target condition meets the second condition, switching the battery device from the working state to the non-working state, so that the control of the working state and/or the working mode of the battery device is realized by monitoring the same condition of the battery device.
Specifically, on the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 7, the battery device includes: the first battery pack and the second battery pack are connected in series, any battery pack comprises a plurality of parallel battery branches, each battery branch comprises a battery unit and a battery switch which are connected in series, and therefore the on and off of each battery branch are independently controlled by controlling the battery switch in each battery branch. Specifically, the first battery pack includes a plurality of parallel first battery branches, the first battery branches include a first battery unit 11 and a first battery switch 12 connected in series, the second battery pack includes a plurality of parallel second battery branches, the second battery branches include a second battery unit 21 and a second battery switch 22 connected in series, wherein the first battery switch 12 is used for controlling on and off of the first battery branch where the first battery switch is located, and the second battery switch 22 is used for controlling on and off of the second battery branch where the second battery switch is located. Optionally, the control switch is a MOS transistor, but the present application is not limited thereto, and is specifically determined according to circumstances.
In the embodiment of the application, the target conditions include the number of battery branches in an open state in the first battery pack and the number of battery branches in an open state in the second battery pack; the first condition includes: the number of the battery branches in the open-circuit state in at least one of the first battery pack and the second battery pack is larger than zero, and the number of the battery branches in the open-circuit state in the first battery pack and the number of the battery branches in the open-circuit state in the second battery pack are smaller than a first preset value; the second condition includes: the number of the battery branches in the open circuit state in the first battery pack or the number of the battery branches in the open circuit state in the second battery pack is not smaller than the first preset value.
Therefore, in the power supply device provided by the embodiment of the application, when the battery branches in the open state exist in the battery device, the battery device is not directly scrapped, but when the number of the battery branches in the open state in each battery pack is smaller than the first preset value, the working state of the battery device is kept by adjusting the working mode of the battery device, and only when the number of the battery branches in the open state in at least one battery pack in the battery device is not smaller than the first preset value, the working state of the battery device is switched, and the battery device is scrapped, so that the battery device is differentially processed according to the state parameters of the battery device, the service life of the battery device is prolonged, and the scrapping rate of the battery device is reduced.
Specifically, in the power supply device provided by the embodiment of the application, the battery switch is connected in series in each battery branch of the battery device, so that when the current state of the battery device meets the first condition, the working mode of the battery device can be adjusted through the battery switch in each battery branch of the battery device, the working state of the battery device is kept, the service life of the battery device is prolonged, and the rejection rate of the battery device is reduced.
On the basis of any one of the foregoing embodiments, in one embodiment of the present application, the processing device is specifically configured to: and adjusting the circuit connection state inside the battery device. Optionally, in an embodiment of the present application, the processing device is specifically configured to: and adjusting the electric connection relation of each battery branch in the battery device by adjusting the on and off states of each battery branch in the battery device, thereby realizing the adjustment of the circuit connection state inside the battery device.
On the basis of the above embodiments, in one embodiment of the present application, the battery device includes: the battery pack comprises a first battery pack and a second battery pack which are connected in series, wherein any battery pack comprises a plurality of battery branches connected in parallel, and each battery branch comprises a battery unit and a battery switch which are connected in series;
The processing device is specifically configured to:
and adjusting the working state of a battery switch of at least one battery branch in the plurality of battery branches, adjusting the on and off states of each battery branch of the battery device, and adjusting the electric connection relation of each battery branch in the battery device so as to adjust the circuit connection state inside the battery device.
Specifically, on the basis of the foregoing embodiments, in one embodiment of the present application, the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches includes:
and adjusting the working state of a battery switch of each battery branch in the other battery pack based on the current state of each battery branch of the preset battery pack in the first battery pack and the second battery pack, wherein the preset battery pack is one with more battery branches in an open-circuit state in the first battery pack and the second battery pack.
Specifically, if the number of battery branches in the open circuit state in the first battery pack is greater than the number of battery branches in the open circuit state in the second battery pack, the preset battery pack is the first battery pack, and the processing device is specifically configured to: and adjusting the working state of the battery switch of each battery branch in the second battery pack based on the current state of each battery branch in the first battery pack, so as to adjust the current state of each battery branch in the second battery pack.
If the number of the battery branches in the open circuit state in the first battery pack is smaller than the number of the battery branches in the open circuit state in the second battery pack, the preset battery pack is the second battery pack, and the processing device is specifically configured to: and adjusting the working state of the battery switch of each battery branch in the first battery group based on the current state of each battery branch in the second battery group, thereby adjusting the current state of each battery branch in the first battery group.
If the number of the battery branches in the open circuit state in the first battery pack is equal to the number of the battery branches in the open circuit state in the second battery pack, the preset battery pack may be the first battery pack or the second battery pack, which is not limited in the present application, and the present application is specifically determined according to the situation.
On the basis of any one of the foregoing embodiments, in one embodiment of the present application, the processing device is specifically configured to, when executing the adjustment of the working state of the battery switch of each battery branch in the other battery group based on the current state of each battery branch of the preset battery group in the first battery group and the second battery group:
Determining the number of the battery branches in the open state in another battery pack based on the number of the battery branches in the open state in the preset battery pack, so that the number of the battery branches in the open state in the preset battery pack is the same as the number of the battery branches in the open state in the other battery pack;
and determining the battery branches in the conducting state and the open-circuit state in the other battery group based on the impedance of the battery branches in the conducting state in the preset battery group, so that each battery branch in the conducting state in the other battery group is respectively matched with the impedance of one battery branch in the conducting state in the preset battery group, and the aging of battery units in each battery branch is accelerated under the condition that the impedance of the battery branch in the conducting state of the first battery group and the impedance of the battery branch in the conducting state in the second battery group are unbalanced.
It should be noted that, on the basis of the foregoing embodiments, in one embodiment of the present application, when the processing device performs adjustment of the operating state of the battery switch of at least one battery branch of the plurality of battery branches, the processing device is further configured to:
If the difference value between the impedance of the first battery branch in the on state and the impedance of any battery branch in the other battery group exceeds a second preset value, the battery switch in the first battery branch is disconnected, so that the first battery branch is in an open state, and the aging of the battery unit is accelerated under the condition that the impedance of the first battery branch and the impedance of the second battery branch corresponding to the first battery branch in the second battery group are unbalanced.
As can be seen from the above, the operating state of the battery device includes a charging state and/or a discharging state. It should be noted that, if the battery device is in a discharging state, the current or voltage output by the battery device depends on an external device (to be charged) electrically connected to the battery device, and taking the output current of the battery device as an example, if the external device needs a current of I1, the output current of the battery device is I1, and if the external device needs a current of I2, the output current of the battery device is I2, as long as the current needed by the external device does not exceed the maximum current that can be output by the battery device.
If the battery device is in a charged state, the current input by the battery device depends on the current required by the battery device, and the external device provides the charging current for the battery device by reading the current value required by the battery device, in the process, if the circuit connection state inside the battery device is changed, the processing device is further used for adjusting the working mode of the battery device when executing: and adjusting the charging current parameter of the battery device to change the charging current of the battery device, so as to avoid the condition that the charging current provided by the peripheral equipment is larger than the charging current required by the battery device, and the battery device is burnt.
It should be noted that, although the above embodiments take the case that the battery device includes two battery packs, i.e., the first battery pack and the second battery pack, in series, the power supply device is described, but the application is not limited thereto, and in other embodiments of the application, the battery device may further include more battery packs in series, and the principle of the processing device for adjusting the working mode of the battery device and/or controlling the working state of the battery device is similar to that of the above embodiments, and the application will not be repeated herein.
On the basis of any one of the above embodiments, in one embodiment of the present application, if the operating state of the battery device is in the charged state, the processing device is specifically configured to, when switching the battery device from the operating state to the non-operating state: disconnecting the charging path of the battery device, so that the battery device is switched from an operating state to a non-operating state; the processing means is specifically configured to, when the battery device is switched from the operating state to the non-operating state, if the operating state of the battery device is in the discharge state: and disconnecting the discharging path of the battery device, so that the battery device is switched from the working state to the non-working state.
Specifically, on the basis of the above embodiment, in one embodiment of the present application, as shown in fig. 7, the battery device is electrically connected to an external device through the control switch 30, and the processing device is specifically configured to: opening the control switch 30 so that the battery device and the external device are in an open state; similarly, the processing device is configured to, when executing the disconnection of the discharge path of the battery device: the control switch 30 is turned off so that the battery device and the external device are in an open state. Optionally, the control switch 30 is a fuse, and the processing device breaks a charging path or a discharging path of the battery device by blowing the fuse, but the present application is not limited thereto, and the processing device is specifically defined as the case may be.
It should be noted that, the non-fault state of the battery device includes, in addition to the charging state and/or the discharging state, a dormant state, where the dormant state refers to that the battery device is not damaged, and is electrically connected with the external charging device to be charged, and is capable of supplying power to the external charging device to be charged, but is in an uncharged state and an uncharged state at present, where the battery device is in an energy-depleted state and/or a normally-off state, and the battery device is in an energy-depleted state, that is, a so-called mobile phone is not powered, and the battery device is in a normally-off state, that is, a so-called mobile phone is turned off. The processing method provided by the embodiment of the application is also applicable when the battery device is in the dormant state, so that in an alternative embodiment of the application, the working state of the battery device also comprises the dormant state.
As can be seen from the above, the power supply device provided by the embodiment of the present application includes a processing device and a battery device, where the processing device maintains the working state of the battery device when the state parameter of the battery device satisfies a first condition, adjusts the working mode of the battery device, and switches the battery device from the working state to the non-working state when the current state of the battery device satisfies a second condition, so that the power supply device can differentially process the battery device according to the state parameter of the battery device, thereby satisfying diversified requirements.
According to the power supply device provided by the embodiment of the application, when the battery units in the open circuit exist in the battery device, if the number of the battery units in the open circuit state in the battery device meets the first condition, the working state of the battery device is kept, the working mode of the battery device is regulated, undamaged battery units are used continuously, the electric connection between the battery device and external equipment is not directly disconnected, the whole battery device is scrapped, the electric connection between the battery device and the external equipment is disconnected until the number of the battery units in the open circuit state in the battery device reaches the second condition, and the whole battery device is scrapped, so that the service life of the battery device is prolonged, the scrapping rate of the battery device is reduced, the user experience is improved, and for large batteries comprising a plurality of series battery packs and a plurality of parallel battery branches for electric automobiles, industrial equipment and the like, the power supply device has a good application scene.
In the present description, each part is described in a progressive manner, and each part is mainly described as different from other parts, and identical and similar parts between the parts are mutually referred.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A method of processing, comprising:
if the battery device is in a working state, monitoring state parameters of the battery device;
if the state parameter of the battery device meets a first condition, maintaining the working state of the battery device and adjusting the working mode of the battery device;
if the current state of the battery device meets a second condition, switching the battery device from an operating state to a non-operating state;
The adjusting the operating mode of the battery device includes: adjusting a circuit connection state inside the battery device;
wherein, the battery device includes: the battery pack comprises a first battery pack and a second battery pack which are connected in series, wherein any battery pack comprises a plurality of battery branches connected in parallel, and each battery branch comprises a battery unit and a battery switch which are connected in series; the battery switch in each battery branch is used for independently controlling the on and off of each battery branch;
the adjusting the circuit connection state inside the battery device includes: adjusting the working state of a battery switch of at least one battery branch of the plurality of battery branches to adjust the circuit connection state inside the battery device;
the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches includes: based on the current state of each battery branch of a preset battery pack in the first battery pack and the second battery pack, adjusting the working state of a battery switch of each battery branch in the other battery pack, wherein the preset battery pack is a battery pack with more battery branches in an open circuit state in the first battery pack and the second battery pack;
The adjusting the working state of the battery switch of each battery branch in the other battery pack based on the current state of each battery branch of the preset battery pack in the first battery pack and the second battery pack comprises: determining the number of battery branches in an open circuit state in another battery pack based on the number of battery branches in the open circuit state in the preset battery pack; determining a battery branch in a conducting state and an open circuit state in the other battery pack based on the impedance of the battery branch in the conducting state in the preset battery pack;
the monitoring of the state parameter of the battery device includes: monitoring a target condition of the battery device;
if the target condition meets the first condition, maintaining the working state of the battery device; if the target condition meets the second condition, switching the battery device from an operating state to a non-operating state;
the target conditions include: the number of battery branches in an open state in the first battery pack and the number of battery branches in an open state in the second battery pack;
the first condition includes: the number of the battery branches in the open-circuit state in at least one of the first battery pack and the second battery pack is larger than zero, and the number of the battery branches in the open-circuit state in the first battery pack and the number of the battery branches in the open-circuit state in the second battery pack are smaller than a first preset value.
2. The processing method according to claim 1, the second condition comprising: the number of the battery branches in the open circuit state in the first battery pack or the number of the battery branches in the open circuit state in the second battery pack is not smaller than the first preset value.
3. The processing method according to claim 1 or 2, wherein if the battery device is in a charged operating state, the adjusting the operating mode of the battery device further includes:
and adjusting a charging current parameter of the battery device.
4. The processing method of claim 1, the adjusting the operating state of the battery switch of at least one of the plurality of battery branches further comprising:
if the impedance difference value between the impedance of the first battery branch in the on state in the preset battery pack and the impedance of any battery branch in the other battery pack exceeds a second preset value, a battery switch in the first battery branch is disconnected.
5. The processing method according to claim 1, wherein the non-operating state is a state in which the battery device cannot establish an electrical connection with an external device;
the operating state includes at least one of a charged state and a discharged state;
If the operating state of the battery device is in a charged state, switching the battery device from the operating state to a non-operating state includes:
disconnecting the charging path of the battery device, so that the battery device is switched from an operating state to a non-operating state;
if the operating state of the battery device is in a discharge state, switching the battery device from the operating state to a non-operating state includes:
and disconnecting the discharging path of the battery device, so that the battery device is switched from the working state to the non-working state.
6. A power supply device comprising a battery device and a processing device for performing the steps of:
if the battery device is in a working state, monitoring state parameters of the battery device;
if the state parameter of the battery device meets a first condition, maintaining the working state of the battery device and adjusting the working mode of the battery device;
if the current state of the battery device meets a second condition, switching the battery device from an operating state to a non-operating state;
wherein said adjusting the operating mode of the battery device comprises: adjusting a circuit connection state inside the battery device;
The battery device includes: the battery pack comprises a first battery pack and a second battery pack which are connected in series, wherein any battery pack comprises a plurality of battery branches connected in parallel, and each battery branch comprises a battery unit and a battery switch which are connected in series; the battery switch in each battery branch is used for independently controlling the on and off of each battery branch;
the adjusting the circuit connection state inside the battery device includes: adjusting the working state of a battery switch of at least one battery branch of the plurality of battery branches to adjust the circuit connection state inside the battery device;
the adjusting the operating state of the battery switch of at least one battery branch of the plurality of battery branches includes: based on the current state of each battery branch of a preset battery pack in the first battery pack and the second battery pack, adjusting the working state of a battery switch of each battery branch in the other battery pack, wherein the preset battery pack is a battery pack with more battery branches in an open circuit state in the first battery pack and the second battery pack;
the adjusting the working state of the battery switch of each battery branch in the other battery pack based on the current state of each battery branch of the preset battery pack in the first battery pack and the second battery pack comprises: determining the number of battery branches in an open circuit state in another battery pack based on the number of battery branches in the open circuit state in the preset battery pack; determining a battery branch in a conducting state and an open circuit state in the other battery pack based on the impedance of the battery branch in the conducting state in the preset battery pack;
The monitoring of the state parameter of the battery device includes: monitoring a target condition of the battery device;
if the target condition meets the first condition, maintaining the working state of the battery device; if the target condition meets the second condition, switching the battery device from an operating state to a non-operating state;
the target conditions include: the number of battery branches in an open state in the first battery pack and the number of battery branches in an open state in the second battery pack;
the first condition includes: the number of the battery branches in the open-circuit state in at least one of the first battery pack and the second battery pack is larger than zero, and the number of the battery branches in the open-circuit state in the first battery pack and the number of the battery branches in the open-circuit state in the second battery pack are smaller than a first preset value.
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