CN113488711A - Energy storage lithium ion battery pack, management system and application - Google Patents
Energy storage lithium ion battery pack, management system and application Download PDFInfo
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- CN113488711A CN113488711A CN202110756422.1A CN202110756422A CN113488711A CN 113488711 A CN113488711 A CN 113488711A CN 202110756422 A CN202110756422 A CN 202110756422A CN 113488711 A CN113488711 A CN 113488711A
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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
- H01M10/42—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
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
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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
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- 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
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Automation & Control Theory (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an energy storage lithium ion battery pack, a management system and application, which belong to the technical field of energy storage lithium ions and comprise a host machine and a slave machine, wherein the host machine and the slave machine respectively comprise a battery module, the end surface of the battery module is provided with a positive socket, a dial switch, a sleep switch, an electric quantity state indicator lamp, an alarm lamp, a standby state lamp, an RS232 communication interface, an external communication port, an internal communication port, a dry contact, a power switch and a negative socket which are sequentially arranged from left to right, and two corners of the lower end of the battery module are respectively provided with a grounding point. The battery system unit is formed by the plurality of battery modules, a battery pack with larger capacity can be formed by connecting a certain number of battery modules in parallel according to requirements, the long-time power supply requirement of a user is met, and the battery system unit is suitable for being applied to environments with higher working temperature and limited installation space.
Description
Technical Field
The invention relates to the technical field of energy storage lithium ions, in particular to an energy storage lithium ion battery pack, a management system and application.
Background
A lithium ion battery: is a secondary battery (rechargeable battery) that operates by mainly relying on lithium ions moving between a positive electrode and a negative electrode. In the process of charging and discharging, Li + is inserted and extracted back and forth between the two electrodes, wherein during charging, Li + is extracted from the positive electrode and inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Lithium batteries are classified into lithium batteries and lithium ion batteries. Lithium ion batteries are used in mobile phones and notebook computers, and are commonly called as lithium batteries. The battery generally adopts a material containing lithium element as an electrode, and is a representative of modern high-performance batteries. However, lithium ions are limited by high temperature and installation space, the application range is small, the battery capacity is small, and the purpose of expanding the battery capacity is usually realized by additionally arranging a plurality of groups of batteries, so that the battery volume is large, and the user requirements cannot be met.
Disclosure of Invention
The invention aims to provide an energy storage lithium ion battery pack, a management system and application, wherein a battery system unit is formed by a plurality of battery modules, a battery pack with larger capacity can be formed by connecting a certain number of battery modules in parallel according to requirements, the long-time power supply requirements of users are met, and the energy storage lithium ion battery pack is suitable for being applied to environments with higher working temperature and limited installation space, so that the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: an energy storage lithium ion battery pack comprises a host and a slave, wherein the host and the slave comprise battery modules, a positive socket, a dial switch, a sleep switch, an electric quantity state indicator lamp, an alarm lamp, a standby state lamp, an RS232 communication interface, an external communication port, an internal communication port, a dry contact, a power switch and a negative socket which are sequentially arranged from left to right are arranged on the end surface of each battery module, and grounding points are arranged at two corners of the lower end of each battery module;
the system comprises a host machine, a slave machine and a negative socket, wherein the host machine is provided with a positive socket, the positive socket is connected with the slave machine through a positive power line, the negative socket is connected with the slave machine through a negative parallel line, the negative socket is connected with the slave machine through a negative power line, and the negative socket is connected with the slave machine through a negative power line.
Furthermore, a battery bracket is sleeved on the outer wall of the battery module.
Further, the grounding point is connected with the ground through a grounding wire.
Further, the external communication port is any one of a CAN communication interface and an RS485 communication interface, and the COM0 interface and the COM1 interface in the internal communication port are both internal RS485 communication interfaces.
Further, both ends of the communication line and the parallel communication line are RJ45 plugs.
Furthermore, the host and the slave are both composed of a battery module and a case, and the case is sleeved outside the battery module.
Further, two auxiliary machines are arranged between the master machine and the slave machine, the structures of the auxiliary machines are consistent with those of the master machine, the positive socket, the internal communication port and the negative socket on the master machine are respectively connected with the positive socket, the internal communication port and the negative socket of the auxiliary machine, the positive socket, the internal communication port and the negative socket between the two auxiliary machines are respectively connected in a one-to-one correspondence manner, and the positive socket, the internal communication port and the negative socket on the auxiliary machine are respectively connected with the positive socket, the internal communication port and the negative socket on the slave machine.
According to another aspect of the invention, an energy storage lithium ion management system is disclosed, which comprises a voltage protection system, a current protection system, a temperature control system, a short-circuit protection system, an alarm system and a fault analysis and processing system, wherein the voltage protection system detects whether any single battery cell reaches an undervoltage protection value through a voltmeter, if the voltage is lower than the protection value, overdischarge protection is started, the battery stops supplying power to the outside, when the voltage of all the single battery cells is recovered to be within a rated return difference value range, the protection is removed, and when the voltage reaches the overvoltage protection value, the charging is stopped; the current protection system detects and judges whether the charging and discharging current values are larger than the protection value through the ammeter, stops charging when the charging current is larger than the protection value, removes the protection after the logic delay setting time, stops discharging when the discharging current is larger than the protection value, and removes the protection after the logic delay setting time; the temperature control system detects the charging or discharging temperature through the temperature sensor, stops charging or supplies power to the outside when the temperature reaches a set value, and releases the protection after recovering a rated return difference value; the short-circuit protection system detects whether the battery module is short-circuited when being activated from a shutdown state through the ohmmeter, stops the activation of the battery module to enter a protection state if the short-circuit occurs, releases the protection when the short-circuit fault is released and restarted, and the alarm system and the fault analysis and processing system are connected with the voltage protection system, the current protection system and the temperature control system.
According to another aspect of the invention, an application of the energy storage lithium ion battery pack is disclosed, wherein the energy storage lithium ion battery pack is used as an energy storage device.
Compared with the prior art, the invention has the beneficial effects that: according to the energy storage lithium ion battery pack, the management system and the application, the battery system unit is formed by the plurality of battery modules, a battery pack with larger capacity can be formed by connecting a certain number of battery modules in parallel according to the requirement, the long-time power supply requirement of a user is met, and the energy storage lithium ion battery pack is suitable for being applied to the environment with higher working temperature and limited installation space; the positive electrode of the battery is made of lithium iron phosphate material, so that the safety performance is high, and the cycle life is long; the system adopts a high-performance BMS battery management mode, has multiple protection functions of overcharge, overdischarge, overcurrent, temperature control, short circuit prevention and the like, has automatic charge and discharge management and single cell equalization functions, is flexible to configure, and prolongs the power supply time of the system by connecting a plurality of system units in parallel; the battery has less self-discharge, no memory effect and can be lightly charged and lightly discharged.
Drawings
Fig. 1 is an overall structural diagram of an energy storage lithium ion battery pack according to a first embodiment of the invention;
fig. 2 is a connection diagram of a battery module of an energy storage lithium ion battery pack according to a first embodiment of the invention;
fig. 3 is a connection diagram of a host of an energy storage lithium ion battery pack according to a first embodiment of the invention;
FIG. 4 is a graph of performance data for energy storage lithium ion battery packs according to embodiments one and two of the present disclosure;
fig. 5 is a host connection diagram of an energy storage lithium ion battery pack according to a second embodiment of the invention;
fig. 6 is an overall structural diagram of the energy storage lithium ion management system of the present invention;
fig. 7 is a diagram illustrating an internal structure of a battery module of the energy storage lithium ion management system according to the present invention.
In the figure: 1. a battery module; 2. a positive electrode socket; 3. a negative socket; 4. a dial switch; 5. a sleep switch; 6. a power status indicator light; 7. a warning light; 8. a standby state light; 9. an RS232 communication interface; 10. an external communication port; 11. an internal communication port; 12. dry contact points; 13. a power switch; 14. a ground point; 15. a host; 16. a slave; 17. the positive electrodes are connected in parallel; 18. a positive power line; 19. an inverter; 20. a communication line; 21. connecting communication lines in parallel; 22. the negative electrodes are connected in parallel; 23. a negative power line; 24. an air switch; 25. a chassis; 26. a secondary machine; 27. a voltage protection system; 28. a current protection system; 29. a temperature control system; 30. a short circuit protection system; 31. an alarm system; 32. a fault analysis and processing system; 33. a battery holder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 3, an energy storage lithium ion battery pack includes a host 15 and a slave 16, both the host 15 and the slave 16 include a battery module 1, a battery bracket 33 is sleeved on an outer wall of the battery module 1, an anode socket 2, a dial switch 4, a sleep switch 5, an electric quantity status indicator lamp 6, an alarm lamp 7, a standby status lamp 8, an RS232 communication interface 9, an external communication port 10, an internal communication port 11, a dry contact 12, a power switch 13 and a cathode socket 3 are sequentially arranged on an end surface of the battery module 1 from left to right, grounding points 14 are respectively arranged at two corners of a lower end of the battery module 1, the grounding points 14 are connected to the ground through grounding wires, the external communication port 10 is any one of a CAN communication interface and an RS485 communication interface, the COM0 interface and the COM1 interface in the internal communication port 11 are both internal RS485 communication interfaces, and two ends of the communication line 20 and the parallel communication line 21 are both RJ45 plugs.
The positive socket 2 on the host 15 and the positive socket 2 on the slave 16 are connected with each other through a positive parallel line 17, the positive socket 2 on the slave 16 is connected with an inverter 19 through a positive power line 18, the external communication port 10 on the host 15 and the inverter 19 are connected with each other through a communication line 20, the internal communication port 11 on the host 15 and the internal communication port 11 on the slave 16 are connected with each other through a parallel communication line 21, the negative socket 3 on the host 15 and the negative socket 3 on the slave 16 are connected with each other through a negative parallel line 22, the negative socket 3 on the host 15 and the inverter 19 are connected with each other through a negative power line 23, the negative power line 23 and the positive power line 18 are both connected with an air switch 24 in series, the host 15 and the slave 16 are both composed of a battery module 1 and a case 25, and the case 25 is sleeved outside the battery module 1.
Example two
Referring to fig. 4 to 5, the present embodiment and the first embodiment only differ in that an auxiliary machine 26 is added, two auxiliary machines 26 are disposed between the master machine 15 and the slave machine 16, the structure of the auxiliary machine 26 is the same as that of the master machine 15, the positive socket 2, the internal communication port 11 and the negative socket 3 of the master machine 15 are respectively connected to the positive socket 2, the internal communication port 11 and the negative socket 3 of the auxiliary machine 26, the positive socket 2 between the two auxiliary machines 26, the internal communication ports 11 and the negative electrode sockets 3 are respectively connected in a one-to-one correspondence manner, the positive electrode socket 2, the internal communication port 11 and the negative electrode socket 3 on the auxiliary machine 26 are respectively connected with the positive electrode socket 2, the internal communication port 11 and the negative electrode socket 3 on the auxiliary machine 16, the battery performances of the energy storage lithium ion battery pack and the two energy storage lithium ion battery packs connected in parallel in the first embodiment and the second embodiment are respectively detected, relevant parameters are counted, and statistical data are shown in fig. 4.
Referring to fig. 6 to 7, in order to better show the working principle of the energy storage lithium ion battery pack, the embodiment provides an energy storage lithium ion management system, which includes a voltage protection system 27, a current protection system 28, a temperature control system 29, a short-circuit protection system 30, an alarm system 31 and a fault analysis and processing system 32, where the voltage protection system 27 detects whether any single cell reaches an undervoltage protection value through a voltmeter, if the voltage is lower than the protection value, an overdischarge protection is started, the battery stops supplying power to the outside, when the voltage of all the single cells is recovered to a rated return difference value range, the protection is removed, when the voltage reaches an overvoltage protection value, the charging is stopped, the circuit breaker is connected with the battery module 1, the voltmeter measures the voltage at the access end of the circuit breaker and the battery module 1, and checks whether the voltage polarity is consistent with the input polarity of the inverter 19; the current protection system 28 detects and judges whether the charging and discharging current values are larger than the protection value through an ammeter, stops charging when the charging current is larger than the protection value, and removes the protection after setting time through logic delay, stops discharging when the discharging current is larger than the protection value, and removes the protection after setting time through logic delay; the temperature control system 29 detects the charging or discharging temperature through a temperature sensor, stops charging or supplies power to the outside when the temperature reaches a set value, and releases the protection after recovering a rated return difference value; the short-circuit protection system 30 detects whether a short circuit occurs when the battery module 1 is activated from a shutdown state through the ohmmeter, stops activation to enter a protection state if the short circuit occurs, releases protection when a short-circuit fault is released and restarted, the alarm system 31 and the fault analysis and processing system 32 are connected with the voltage protection system 27, the current protection system 28 and the temperature control system 29, and the alarm system 31 and the fault analysis and processing system 32 respectively provide the subsystems with functions of warning and processing and analyzing information.
In summary, the following steps: according to the energy storage lithium ion battery pack, the management system and the application, the battery system unit is formed by the plurality of battery modules 1, a certain number of battery modules 1 can be selected according to requirements to be connected in parallel to form a battery pack with larger capacity, the long-time power supply requirement of a user is met, and the energy storage lithium ion battery pack is suitable for being applied to environments with higher working temperature and limited installation space; the positive electrode of the battery is made of lithium iron phosphate material, so that the safety performance is high, and the cycle life is long; the system adopts a high-performance BMS battery management mode, has multiple protection functions of overcharge, overdischarge, overcurrent, temperature control, short circuit prevention and the like, has automatic charge and discharge management and single cell equalization functions, is flexible to configure, and prolongs the power supply time of the system by connecting a plurality of system units in parallel; the battery has less self-discharge, no memory effect and can be lightly charged and lightly discharged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. An energy storage lithium ion battery pack is characterized by comprising a host (15) and a slave (16), wherein the host (15) and the slave (16) both comprise a battery module (1), the end face of the battery module (1) is provided with a positive electrode socket (2), a dial switch (4), a sleep switch (5), an electric quantity state indicator lamp (6), an alarm lamp (7), a standby state lamp (8), an RS232 communication interface (9), an external communication port (10), an internal communication port (11), a dry contact (12), a power switch (13) and a negative electrode socket (3) which are sequentially arranged from left to right, and two corners of the lower end of the battery module (1) are provided with grounding points (14);
the positive socket (2) on the host (15) and the positive socket (2) on the slave (16) are connected with each other through a positive parallel line (17), the positive socket (2) on the slave (16) is connected with an inverter (19) through a positive power line (18), the external communication port (10) on the host (15) and the inverter (19) are connected with each other through a communication line (20), the internal communication port (11) on the host (15) and the internal communication port (11) on the slave (16) are connected with each other through a parallel communication line (21), the negative socket (3) on the host (15) and the negative socket (3) on the slave (16) are connected with each other through a negative parallel line (22), and the negative socket (3) on the host (15) and the inverter (19) are connected with each other through a negative power line (23), the negative power line (23) and the positive power line (18) are both connected with an air switch (24) in series.
2. An energy storage lithium ion battery pack according to claim 1, characterized in that the battery module (1) is sleeved with a battery bracket (33) on the outer wall.
3. An energy storage lithium ion battery pack according to claim 1, characterized in that the grounding point (14) is connected to ground via a grounding line.
4. The energy storage lithium ion battery pack as claimed in claim 1, wherein the external communication port (10) is any one of a CAN communication interface and an RS485 communication interface, and the COM0 interface and the COM1 interface in the internal communication port (11) are internal RS485 communication interfaces.
5. An energy storage lithium ion battery pack according to claim 1, characterized in that both ends of the communication line (20) and the parallel communication line (21) are RJ45 plugs.
6. The energy storage lithium ion battery pack according to claim 1, wherein the master machine (15) and the slave machine (16) are both composed of a battery module (1) and a case (25), and the case (25) is sleeved outside the battery module (1).
7. The energy storage lithium ion battery pack according to claim 1, wherein two auxiliary machines (26) are arranged between the host machine (15) and the slave machine (16), the structures of the auxiliary machines (26) are consistent with the structure of the host machine (15), the positive socket (2), the internal communication port (11) and the negative socket (3) on the host machine (15) are respectively connected with the positive socket (2), the internal communication port (11) and the negative socket (3) of the auxiliary machines (26), the positive socket (2), the internal communication port (11) and the negative socket (3) between the two auxiliary machines (26) are respectively connected in a one-to-one correspondence manner, and the positive socket (2), the internal communication port (11) and the negative socket (3) on the auxiliary machines (26) are respectively connected with the positive socket (2), the internal communication port (11) and the negative socket (3) on the slave machine (16).
8. The energy storage lithium ion management system of claim 1, comprising a voltage protection system (27), a current protection system (28), a temperature control system (29), a short-circuit protection system (30), an alarm system (31) and a fault analysis and processing system (32), wherein the voltage protection system (27) detects whether any single cell reaches a protection value through a voltmeter, if the voltage is lower than the undervoltage protection value, the over-discharge protection is started, the battery stops supplying power to the outside, when the voltage of all the single cells is recovered to be within a rated return difference value range, the protection is removed, and when the voltage reaches the overvoltage protection value, the charging is stopped; the current protection system (28) detects and judges whether the charging and discharging current values are larger than the protection value through an ammeter, stops charging when the charging current is larger than the protection value, removes the protection after the logic delay setting time, stops discharging when the discharging current is larger than the protection value, and removes the protection after the logic delay setting time; the temperature control system (29) detects the charging or discharging temperature through a temperature sensor, stops charging or supplies power to the outside when the temperature reaches a set value, and releases the protection after recovering a rated return difference value; the short-circuit protection system (30) detects whether a short circuit occurs when the battery module (1) is activated from a shutdown state through an ohmmeter, if the short circuit occurs, the battery module is stopped from being activated to enter a protection state, and if the short circuit fault is removed and restarted, the protection is removed, and the alarm system (31) and the fault analysis and processing system (32) are connected with a voltage protection system (27), a current protection system (28) and a temperature control system (29).
9. Use of an energy storage lithium ion battery according to claim 1, characterized in that the energy storage lithium ion battery is used as an energy storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110756422.1A CN113488711A (en) | 2021-07-05 | 2021-07-05 | Energy storage lithium ion battery pack, management system and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110756422.1A CN113488711A (en) | 2021-07-05 | 2021-07-05 | Energy storage lithium ion battery pack, management system and application |
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| CN113488711A true CN113488711A (en) | 2021-10-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094677A (en) * | 2022-01-18 | 2022-02-25 | 瑞诺技术(深圳)有限公司 | Home energy storage system based on new energy electric energy conversion and management system thereof |
| CN114172245A (en) * | 2022-02-10 | 2022-03-11 | 瑞诺技术(深圳)有限公司 | Household electricity storage group and system based on new energy conversion of chemical energy and electric energy |
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2021
- 2021-07-05 CN CN202110756422.1A patent/CN113488711A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094677A (en) * | 2022-01-18 | 2022-02-25 | 瑞诺技术(深圳)有限公司 | Home energy storage system based on new energy electric energy conversion and management system thereof |
| CN114172245A (en) * | 2022-02-10 | 2022-03-11 | 瑞诺技术(深圳)有限公司 | Household electricity storage group and system based on new energy conversion of chemical energy and electric energy |
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