CN114583353A - Large-capacity battery pack with temperature control device - Google Patents
Large-capacity battery pack with temperature control device Download PDFInfo
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- CN114583353A CN114583353A CN202210222491.9A CN202210222491A CN114583353A CN 114583353 A CN114583353 A CN 114583353A CN 202210222491 A CN202210222491 A CN 202210222491A CN 114583353 A CN114583353 A CN 114583353A
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- Prior art keywords
- heat transfer
- temperature control
- control device
- pipeline
- battery pack
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the technical field of batteries, and particularly discloses a high-capacity battery pack with a temperature control device, which comprises the temperature control device and at least two batteries, wherein the temperature control device comprises a temperature control unit, an input pipeline, an output pipeline and a heat transfer pipeline, the input pipeline and the output pipeline are connected with the temperature control unit, the heat transfer pipeline is arranged between polar pole connecting surfaces of two adjacent single batteries, and the heat transfer pipeline comprises a heat transfer medium to exchange heat with polar poles. The high-capacity battery pack with the temperature control device is simple in structure and good in heat conduction effect, and the service life of the battery is prolonged.
Description
Technical Field
The invention belongs to the technical field of batteries, and particularly relates to a high-capacity battery pack with a temperature control device.
Background
The high-capacity lithium battery is one of the development directions of the lithium battery, and can be applied to the fields of energy storage and power batteries. However, the large-capacity battery generates considerable heat during the charging and discharging processes, and if the generated heat cannot be effectively released, the heat is accumulated in the single battery, so that the temperature of the large-capacity battery is not uniform, the service life of the battery is shortened, and a safety accident of the large-capacity battery is caused in a serious case.
Among the prior art, temperature control device mostly dispels the heat to the group battery body, and the temperature of group battery mainly concentrates on utmost point post on, leads to temperature control device heat transfer effect not high, and the unnecessary heat that produces in the group battery is unable in time evacuated away, when needs carry out rising temperature to the group battery, also inconveniently carries out the rapid heating to the group battery, and the heat dissipation of group battery or the efficiency of heating are very low, cause the market competition of product not enough.
CN 105552472 discloses a large capacity battery pack temperature control device and large capacity battery pack with the same, the temperature control device is a heat conduction sleeve designated by insulation heat conduction material, a plurality of battery perforation holes corresponding to a plurality of battery monomers in the battery pack one-to-one are arranged on the heat conduction sleeve, a filler hole between the battery perforation holes is arranged on the heat conduction sleeve, and heat absorption phase change material and fire extinguishing agent material are filled in the filler hole, thereby improving the heat conduction performance of the large capacity battery, the temperature control device utilizes solid composite material to conduct heat, the heat conduction efficiency is low, the battery perforation holes corresponding to the battery monomers one-to-one are arranged on the heat conduction sleeve, and the applicability of the product is poor.
CN 208014824U discloses a lithium cell with temperature control device, it is through setting up temperature control device in the lithium cell outside, and temperature control device includes protecting sheathing, temperature sensor, metal pipe, heat-conducting liquid and miniature circulating pump, and the protecting sheathing parcel is in this external, temperature sensor pastes this external lithium cell, the metal pipe spiral is established between protecting sheathing and lithium cell body and the surface of lithium cell body is hugged closely to one side of metal pipe, and the heat-conducting liquid is filled in the metal pipe, the head and the tail intercommunication of metal pipe, and the junction of metal pipe is equipped with miniature circulating pump, temperature sensor are connected to miniature circulating pump through the relay. The temperature control device has a complex structure, less effective contact surface between the conduit and the battery and low heating or heat dissipation efficiency.
Disclosure of Invention
The invention aims to provide a battery pack with a temperature control device, aiming at the defects of the prior art, wherein the temperature control device is arranged on the upper connecting surfaces of the positive and negative poles of the battery to control the temperature of the poles, and the battery pack has the advantages of simple structure, high heat dissipation or heating efficiency and good temperature control effect.
The technical scheme of the invention is as follows:
the utility model provides a large capacity group battery with temperature control device, includes temperature control device and two at least batteries, temperature control device includes temperature control unit, input pipeline, output pipeline and heat transfer pipeline, input pipeline and output pipeline link to each other with temperature control unit, the heat transfer pipeline sets up between the face is connected to adjacent two battery cell's positive negative utmost point post, include heat transfer medium in the heat transfer pipeline to carry out the heat exchange with utmost point post.
Preferably, the heat transfer pipeline is in contact with the pole connecting surface.
Preferably, the pole connecting surface is provided with a groove to accommodate a heat transfer pipeline.
Preferably, the heat transfer pipe has an elliptical cross-section.
Preferably, the width of the groove is not less than the diameter of the heat transfer pipe, the height of the groove is less than the radius of the heat transfer pipe, and the sectional area of the groove is not less than half of the sectional area of the heat transfer pipe.
Preferably, the heat transfer pipeline is a metal pipeline, the input pipeline and the output pipeline are provided with insulating parts, and the heat transfer medium is an insulating medium.
The heat transfer pipeline is an aluminum pipe, and the input pipeline and the output pipeline are insulated pipelines.
Preferably, the heat transfer pipe is made of an insulating material.
The beneficial effects of the invention are:
according to the invention, the heat transfer pipeline of the temperature control device is arranged on the pole connecting surface of the battery pack, the circulating heat transfer medium is arranged in the heat transfer pipeline, heat generated by the battery in the charging and discharging process is transferred to the heat transfer pipeline from the pole connecting surface, the heat is dissipated through the heat transfer medium in the heat transfer pipeline, or the heat in the heat transfer medium is transferred to the battery through the pole connecting surface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention.
In the drawings:
FIG. 1 is a schematic view of a large-capacity battery pack having a conductive member according to an embodiment of the present invention
FIG. 2 is a schematic view of a temperature control device in FIG. 1
FIG. 3 is a schematic structural diagram of positive and negative poles and conductive assembly of large-capacity battery pack
FIG. 4 is a cross-sectional view of the grooves of the terminal connection surface and the heat transfer conduit
Wherein: 1-heat transfer pipeline 2-liquid inlet pipeline 3-liquid outlet pipeline 4-temperature control unit 5-insulating part 6-large-capacity battery 7-pole connecting surface 8-groove 9-groove section 10-heat transfer pipeline section
The specific implementation mode is as follows:
the foregoing is further illustrated by the following specific examples, which are intended to be illustrative of the present invention and are not to be construed as limiting the scope thereof. As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function.
Example 1
As shown in fig. 1, a large-capacity battery pack having a temperature control device includes a temperature control unit 4, a heat transfer duct 1, an input duct 2, an output duct 3, and a large-capacity battery pack 6.
There are circulating pump and heating cooling system in the control by temperature change unit 4, the circulating pump output is connected to the first port of input pipeline 2, the circulating pump input is connected to the first port of output pipeline 3, the both ends of heat transfer pipeline 1 are connected with the 2 second ports of input pipeline and the 3 second ports of output pipeline respectively, heat transfer pipeline 1 is arranged in between the positive and negative utmost point post of two adjacent large capacity group battery and is connected 7, but there is circulating flow's heat transfer medium in heat transfer pipeline 1, but this kind of structural design is more favorable to the heat conduction.
Example 2
As shown in fig. 1, a large-capacity battery pack having a temperature control device includes a temperature control unit 4, a heat transfer duct 1, an input duct 2, an output duct 3, and a large-capacity battery pack 6.
There are circulating pump and heating cooling system in the control by temperature change unit 4, the circulating pump output is connected to the first port of input pipeline 2, the circulating pump input is connected to the first port of output pipeline 3, the both ends of heat transfer pipeline 1 are connected with 2 second ports of input pipeline and 3 second ports of output pipeline respectively, heat transfer pipeline 1 is arranged in between the positive and negative utmost point post of two adjacent large capacity group battery and is connected the face 7, but there is the heat transfer medium water of circulation flow in heat transfer pipeline 1, heat transfer pipeline is insulating plastic tubing, this kind of structural design more is favorable to the heat conduction. The polar plate has gathered a large amount of heats in the charge-discharge process of large capacity group battery 6, and the heat transfer medium that flows in heat transfer pipeline 1 absorbs the surplus heat in the group battery and transports away, and when needs provide heat for the battery, the heat transfer medium that heats in the heat transfer pipeline passes through the polar plate with the heat and transmits the battery to make the group battery can normally work. This group battery passes through temperature control device can dispel the heat or heat the group battery more fast effectually, and heat transfer efficiency is high, improves battery life and working effect.
In operation, a temperature sensing element on the large-capacity battery 6 is connected with a battery management system BMS, when the BMS monitors that the service temperature of the battery is out of the optimal range, the temperature control unit 4 is started to heat or cool, and the pump body circulates hot/cold water, so that the battery 6 is heated or cooled.
As shown in figure 2, the heat transfer pipeline 1 is an aluminum pipe, the heat transfer pipeline 1 is internally provided with a heat transfer medium glycol capable of circularly flowing, and in actual use, when the heat transfer pipeline 1 is a metal pipeline, in order to prevent short circuit of a battery, the joints of the heat transfer pipeline 1, the liquid inlet pipeline 2 and the liquid outlet pipeline 3 are both provided with insulating parts 5. The polar plate of large capacity group battery 6 has gathered a large amount of heats in the charge-discharge process, and the heat transfer medium that flows in heat transfer pipeline 1 absorbs the surplus heat in the group battery and transports away, and when needs provide heat for the battery, the heat transfer medium that heats in heat transfer pipeline 1 passes through the polar plate with the heat and transmits the battery to make the group battery can normally work. This group battery passes through temperature control device 4 can be more quick effectual dispels the heat or heats the group battery, and heat transfer efficiency is high, improves battery life and working effect.
As shown in figure 3, the strip-shaped groove 8 is arranged on the pole connecting surface 7 of the large-capacity battery pack, the heat transfer pipeline 1 is arranged in the groove 8, the heat transfer pipeline 1 is embedded into the groove 8 in a matching mode, the outer surface of the heat transfer pipeline 1 is in contact with the inner surface of the groove 8, the structure increases the contact surface of the heat transfer pipeline 1 and the pole, heat transfer is facilitated, and the heat transfer efficiency and the service life of a battery are improved. When the heat transfer pipeline 1 is a metal pipeline, the metal pipeline arranged in the groove 8 also plays a role in electric conduction, the electric conduction area of the pole is increased, the heat productivity of the battery is reduced, and the service life of the battery is prolonged.
In this embodiment, as shown in fig. 4, the cross section 9 of the groove on the pole connecting surface is semi-elliptical, the cross section 10 of the heat transfer pipe is circular, the width of the groove is larger than the diameter of the heat transfer pipe, the heat transfer pipe 1 can be accommodated in the groove, the height of the groove is smaller than the radius of the heat transfer pipe, and when the cross section of the groove is larger than half of the cross section of the heat transfer pipe, the positive and negative plates can extrude and deform the circular pipe arranged in the groove to make the outer surface of the heat transfer pipe 1 fully contact with the inner surface of the groove, thereby increasing the contact area between the heat transfer pipe and the plates and improving the heat transfer efficiency of the heat transfer pipe.
It should be noted that the shape of the grooves on the plate may be a straight line shape, a spiral shape, a wave shape, an S shape, a circular shape, etc. which can accommodate or fix the heat transfer pipe, and is not limited to the shapes listed above.
The foregoing embodiments illustrate and describe preferred embodiments of the present invention for the purpose of illustrating the technical concepts and features of the invention, it being understood that the invention is not limited to the forms disclosed herein, but is not to be construed as being exhaustive of other embodiments and is capable of numerous other combinations, modifications, and environments and is capable of modifications within the scope of the inventive concept as expressed herein, either by the above teachings or by the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be protected by the following claims.
Claims (9)
1. The utility model provides a large capacity group battery with temperature control device, its characterized in that includes temperature control device and two at least batteries, temperature control device includes temperature control unit, input pipeline, output pipeline and heat transfer pipeline, input pipeline and output pipeline link to each other with temperature control unit, heat transfer pipeline sets up between the utmost point post of two adjacent battery cells is connected the face, there is heat transfer medium in the heat transfer pipeline to carry out the heat exchange with utmost point post.
2. A large-capacity battery pack having a temperature control device as set forth in claim 1, wherein said heat transfer duct is in contact with the terminal connecting surface.
3. A large-capacity battery pack having a temperature control device as set forth in claim 1, wherein said terminal attachment surface is provided with a recess for receiving a heat transfer pipe.
4. A large-capacity battery pack having a temperature control device as set forth in claim 3, wherein said heat transfer duct has a circular cross section.
5. A large capacity battery pack having a temperature control device as set forth in claim 4 or 5, wherein the groove width is not less than the heat transfer pipe diameter, the groove height is less than the heat transfer pipe radius, and the groove sectional area is not less than half of the heat transfer pipe sectional area.
6. A large capacity battery pack having a temperature control device as set forth in any one of claims 3 to 5, wherein said groove has a semi-elliptical cross section.
7. A large-capacity battery pack having a temperature control device as set forth in claim 1, wherein said heat transfer duct is a metal duct, said input duct and said output duct are provided with an insulating portion, and said heat transfer medium is an insulating medium.
8. A large capacity battery pack having a temperature control device as set forth in claim 7, wherein said heat transfer duct is an aluminum pipe, and said input duct and said output duct are insulated ducts.
9. A large-capacity battery pack having a temperature control device as set forth in claim 1, wherein said heat transfer duct is made of an insulating material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222491.9A CN114583353A (en) | 2022-03-09 | 2022-03-09 | Large-capacity battery pack with temperature control device |
| PCT/CN2023/080007 WO2023169395A1 (en) | 2022-03-09 | 2023-03-07 | High-capacity battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222491.9A CN114583353A (en) | 2022-03-09 | 2022-03-09 | Large-capacity battery pack with temperature control device |
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| Publication Number | Publication Date |
|---|---|
| CN114583353A true CN114583353A (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210222491.9A Pending CN114583353A (en) | 2022-03-09 | 2022-03-09 | Large-capacity battery pack with temperature control device |
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| CN (1) | CN114583353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169395A1 (en) * | 2022-03-09 | 2023-09-14 | 陕西奥林波斯电力能源有限责任公司 | High-capacity battery pack |
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2022
- 2022-03-09 CN CN202210222491.9A patent/CN114583353A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169395A1 (en) * | 2022-03-09 | 2023-09-14 | 陕西奥林波斯电力能源有限责任公司 | High-capacity battery pack |
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