CN114243150B - Lithium ion storage battery pack - Google Patents
Lithium ion storage battery pack Download PDFInfo
- Publication number
- CN114243150B CN114243150B CN202111306558.9A CN202111306558A CN114243150B CN 114243150 B CN114243150 B CN 114243150B CN 202111306558 A CN202111306558 A CN 202111306558A CN 114243150 B CN114243150 B CN 114243150B
- Authority
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- China
- Prior art keywords
- block body
- accommodating grooves
- lithium ion
- groove
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 238000002955 isolation Methods 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a lithium ion storage battery pack, which comprises a battery cell, a heat dissipation block body, a connecting plate and a plug, wherein n containing grooves and n-1 isolation cavities are formed in the heat dissipation block body, the isolation cavities are arranged between two adjacent containing grooves, and corner grooves are formed in the corner positions of the groove bottoms, far away from each other, of the containing grooves at the head end and the tail end of the heat dissipation block body; the battery cells are arranged in one-to-one correspondence with the accommodating grooves of the radiating block body and are accommodated in the accommodating grooves; the radiating block bodies are arranged in pairs, the openings of the accommodating grooves are opposite to each other, the battery cell is provided with a lug extending out of the accommodating grooves, the connecting plate is welded with the lug, and the plug is connected with the connecting plate through a wire. The invention is convenient for the quick heat dissipation of the battery cell and can improve the service life and the safety performance of the battery cell.
Description
Technical Field
The invention relates to the technical field of heat dissipation of lithium ion storage battery packs, in particular to a lithium ion storage battery pack.
Background
In recent years, new products of lithium ion battery pack power supply have gradually occupied the markets of starting power supply, model airplane, energy storage and the like.
At present, the conventional lithium ion storage battery pack is assembled by directly carrying out serial and parallel connection on the battery cells face to face or back to back. The method has the defects that the battery cells in the lithium ion storage battery pack are in close contact, the battery cells are equivalent to heat insulation layers, and a large amount of heat can be emitted by the lithium ion storage battery pack in the discharging process, so that the heat cannot be discharged in time in the heat insulation layers. Along with the continuation of discharge time, the temperature of the battery cell is higher and higher, and the battery cell is equivalent to being continuously in a high-temperature environment, so that the electrical property and the safety performance of the battery are affected for a long time, and the phenomena of residual gas, swelling and even ignition of the battery cell can be caused when the battery cell is serious.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the lithium ion storage battery pack, which accelerates the heat dissipation in the discharging process and can improve the service life and the safety of the battery pack.
In order to solve the technical problems, the invention provides a lithium ion storage battery pack which comprises a battery cell, a radiating block body, a connecting plate and a plug,
N accommodating grooves and n-1 isolation cavities are formed in the radiating block body, the isolation cavities are arranged between two adjacent accommodating grooves, and corner grooves are formed in the corner positions of the groove bottoms, far away from each other, of the accommodating grooves at the head end and the tail end of the radiating block body;
The battery cells are arranged in one-to-one correspondence with the accommodating grooves of the radiating block body and are accommodated in the accommodating grooves;
the radiating block bodies are arranged in pairs, the openings of the accommodating grooves are opposite to each other, the battery cell is provided with a lug extending out of the accommodating grooves, the connecting plate is welded with the lug, and the plug is connected with the connecting plate through a wire.
As an improvement of the scheme, the angle groove comprises an extension cavity and a through groove, wherein the through groove is communicated with the extension cavity and the containing groove, and the inner wall of the extension cavity is in smooth transition.
As an improvement of the scheme, the isolation cavity is arranged in parallel with the containing grooves, and the distance between the isolation cavity and the adjacent two containing grooves is equal.
As an improvement of the scheme, the accommodating groove, the isolation cavity and the corner groove penetrate through two ends of the radiating block body.
As an improvement of the above scheme, at least one groove wall of the accommodating groove is kept at a preset distance from the battery cell.
As an improvement of the scheme, the radiating block body is made of copper, copper alloy, aluminum or aluminum alloy.
As an improvement of the scheme, the connecting plate and the tab are welded by laser.
As an improvement of the proposal, the connecting plate is made of fiber board, and is provided with copper plate, nickel plate or copper nickel plate
The implementation of the invention has the following beneficial effects:
the invention provides a lithium ion storage battery pack and the lithium ion storage battery pack provided with the same, and a battery core arranged in a containing groove can radiate heat through a heat radiation block body and an isolation cavity arranged between two adjacent containing grooves, and the cavity wall of the whole isolation cavity is a heat radiation surface, so that the heat radiation area is greatly increased, and the rapid heat radiation can be realized; the angle groove can enable the radiating block body to freely extend along with the thickness change of the battery cell in the discharging process, and the space size of the accommodating groove is adjusted, so that the battery cell cannot be extruded and deformed, and the normal operation of the battery cell is ensured; in addition, the electric core is held in the holding tank, and the radiating block can protect the electric core not stab the damage that causes by outside sharp object.
In addition, according to the lithium ion storage battery pack provided by the invention, the radiating block bodies are arranged in pairs, the openings of the accommodating grooves are arranged oppositely, the battery cores in the radiating block bodies arranged in pairs are connected with the plug through the connecting plate, the connecting structure is simple, the battery pack presents a straight-line structure, and the overall radiating efficiency is high.
Drawings
Fig. 1 is a front view of a first embodiment of a lithium ion battery pack of the present invention;
fig. 2 is a front view of a second embodiment of a lithium ion battery pack according to the present invention;
fig. 3 is a front view of a third embodiment of a lithium ion battery pack according to the present invention;
Fig. 4 is a top view of fig. 1, 2 and 3;
fig. 5 is a bottom view of fig. 1, 2 and 3;
FIG. 6 is a schematic structural view of the heat sink body of FIG. 1;
fig. 7 is a schematic structural diagram of the heat sink body of fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1,4 and 5, the present invention provides an embodiment of a lithium ion battery pack, which includes a heat dissipation block body 1, a battery cell 2, a connection plate 3 and a plug 4. N holding grooves 11 and n-1 isolation cavities 12 are formed in the radiating block body 1, the isolation cavities 12 are arranged between two adjacent holding grooves 11, and corner grooves 13 are formed in the corner positions of the bottom of the holding grooves 11, far away from each other, of the holding grooves 11 at the head end and the tail end of the radiating block body 1. The battery cells 2 are arranged in one-to-one correspondence with the accommodating grooves 11 of the radiating block body 1, and are accommodated in the accommodating grooves 11. The radiating block bodies 1 are arranged in pairs, openings of the accommodating grooves 11 are arranged oppositely, the battery cells 2 are provided with lugs 21 extending out of the accommodating grooves 11, the connecting plates 3 are welded with the lugs 21, and the plugs 4 are connected with the connecting plates 3 through wires 31.
It should be noted that, n in this embodiment is the number of the battery cells 2 to be placed in each heat dissipation block body 1, and may be a natural number greater than 0, such as 1, 2, 3, etc. Fig. 1 and 6 are schematic diagrams of a lithium ion battery pack structure and a heat dissipation block body corresponding to the lithium ion battery pack structure when the number n of the accommodating grooves 11 is 1, at this time, 1 cell 2 can be accommodated, fig. 2 and 7 are schematic diagrams of a lithium ion battery pack structure and a heat dissipation block body corresponding to the lithium ion battery pack structure when the number n of the accommodating grooves 11 is 2, at this time, 2 cells 2 can be accommodated, and 1 isolation cavity 12 is arranged between two accommodating grooves 11 accommodating the cells 2.
The battery cell 2 arranged in the accommodating groove 11 can radiate heat through the heat radiation block body 1 and the isolation cavity 12 arranged between two adjacent accommodating grooves 11, and the cavity wall of the whole isolation cavity 12 is a heat radiation surface, so that the heat radiation area is greatly increased, and the rapid heat radiation can be realized; the angle groove 13 can enable the radiating block body 1 to freely extend along with the thickness change of the battery cell 2 in the discharging process, and the space size of the accommodating groove 11 is adjusted, so that the battery cell 2 cannot be extruded and deformed, and the normal operation of the battery cell 2 is ensured; in addition, the electric core 2 is accommodated in the accommodating groove 11, and the heat dissipation block can protect the electric core 2 from being damaged by the puncture of an external sharp object, so that the service life and the safety performance of the electric core 2 can be improved.
Specifically, the corner groove 13 of the embodiment includes an extension cavity 131 and a through groove 132, the through groove 132 is communicated with the extension cavity 131 and the accommodating groove 11, and the inner wall of the extension cavity 131 is in smooth transition, so that the stress of each part of the extension cavity 131 is uniform, and the heat dissipation block body 1 can be conveniently and freely extended along with the thickness change of the battery cell 2 in the discharging process.
The isolating cavity 12 is parallel to the accommodating grooves 11, and the distance between the isolating cavity 12 and the two adjacent accommodating grooves 11 is equal, so that the battery cells 2 in the accommodating grooves 11 can achieve similar heat dissipation effect, and heat accumulation is not caused.
In order to ensure that the heat of the heat dissipation block body 1 can be timely dissipated, the accommodating groove 11, the isolation cavity 12 and the corner groove 13 penetrate through two ends of the heat dissipation block body 1, so that circulation heat dissipation of the heat dissipation block body 1 and surrounding air is enhanced.
The isolation cavity 12 is preferably closed at the notch side of the accommodating groove 11, the isolation cavity 12 on the radiating block body 1 is not easy to deform, and the radiating area of each isolation cavity 12 is kept relatively constant, so that the battery cells 2 in the accommodating groove 11 can achieve similar radiating effect, and local high temperature is avoided.
At least one groove wall of the accommodating groove 11 is kept at a preset distance from the battery cell 2, so that the accommodating groove 11 (i.e. the accommodating grooves 11 at the two ends which are not in the front and the tail) except for the accommodating groove 11 positioned at the middle part of the radiating block body 1 can provide enough accommodating space for thickness variation in the discharging process of the battery cell 2, so that the battery cell 2 cannot be extruded and deformed, and normal operation of the battery cell 2 is ensured.
The heat dissipation block body 1 of the embodiment is made of copper, copper alloy, aluminum or aluminum alloy with good heat conductivity, the heat dissipation effect of the heat dissipation block body 1 is good, and the sharp object can be effectively prevented from piercing the battery cell 2. The heat dissipation block body 1 can be manufactured by directly stamping, and the battery can be directly sleeved into the accommodating groove 11 when assembled with the battery core 2, so that the heat dissipation block is simple in structure and convenient to use.
It should be noted that the number of the accommodating grooves 11 of the heat dissipation block bodies 1 disposed in pairs may be the same (as shown in fig. 1 and fig. 2, the number of the electric cores 2 assembled by the heat dissipation block bodies 1 disposed at the left end and the right end of the connecting plate 3 is the same, each heat dissipation block body 1 in fig. 1 is assembled with 1 electric core 2, each heat dissipation block body 1 in fig. 2 is assembled with 2 electric cores 2), or may be different (as shown in fig. 3, the heat dissipation block body 1 disposed at the left end of the connecting plate 3 is assembled with 2 electric cores 2, and the heat dissipation block body 1 disposed at the right end of the connecting plate 3 is assembled with 1 electric core 2), i.e. the heat dissipation block bodies 1 disposed in pairs may be assembled with different numbers of electric cores 2.
The radiating block bodies 1 are arranged in pairs, the openings of the accommodating grooves 11 are arranged oppositely, the battery cells 2 in the radiating block bodies 1 arranged in pairs are connected with the plugs 4 through the connecting plates 3, the connecting structure is simple, and the battery pack presents a straight structure and has high overall radiating efficiency. This is because, compare current electric core 2 stack structure, the both sides of every electric core 2 can directly dispel the heat fast, and electric core 2 is dispersed the holding and is on the heat dissipation piece body 1 of pair, and the situation that the heat backlog can not appear in electric core 2 and heat dissipation piece body 1.
The connection plate 3 is made of a fiber board, and a metal block 32 for welding with the tab 21 is embedded on the connection plate 3, and the metal block 32 is made of a copper plate, a nickel plate or a copper nickel plate.
The connection board 3 and the tab 21 in this embodiment are preferably welded by laser, which is compared with conventional soldering, so as to prevent the damage to the battery core 2 caused by high temperature during soldering, and prevent the potential safety hazard caused by the falling of the solder slag generated during soldering into the battery core 2.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (7)
1. A lithium ion storage battery pack is characterized by comprising a battery cell, a heat dissipation block body, a connecting plate and a plug,
N accommodating grooves and n-1 isolation cavities are formed in the radiating block body, the isolation cavities are arranged between two adjacent accommodating grooves, and corner grooves are formed in the corner positions of the groove bottoms, far away from each other, of the accommodating grooves at the head end and the tail end of the radiating block body;
The battery cells are arranged in one-to-one correspondence with the accommodating grooves of the radiating block body and are accommodated in the accommodating grooves;
The radiating block bodies are arranged in pairs, the openings of the accommodating grooves are arranged oppositely, the battery cells are provided with lugs extending out of the accommodating grooves, the connecting plates are welded with the lugs, and the plugs are connected with the connecting plates through wires;
the angle groove comprises an extension cavity and a through groove, wherein the through groove is communicated with the extension cavity and the containing groove, and the inner wall of the extension cavity is in smooth transition.
2. The lithium-ion battery of claim 1, wherein the isolation cavity is disposed parallel to the receiving slots and the isolation cavity is equidistant from adjacent two receiving slots.
3. The lithium ion battery pack according to claim 1 or 2, wherein the accommodation groove, the isolation cavity, and the corner groove penetrate through both ends of the heat dissipation block body.
4. The lithium-ion battery of claim 1, wherein at least one wall of the receiving slot is spaced a predetermined distance from the cells.
5. The lithium ion battery of claim 1, wherein the heat sink body is made of copper, copper alloy, aluminum, or aluminum alloy.
6. The lithium ion battery of claim 1 wherein the connection plate and the tab are laser welded.
7. The lithium ion battery of claim 1 or 6, wherein the connection plate is made of a fiber plate, and a copper plate, a nickel plate or a copper nickel plate is provided on the connection plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306558.9A CN114243150B (en) | 2021-11-05 | 2021-11-05 | Lithium ion storage battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306558.9A CN114243150B (en) | 2021-11-05 | 2021-11-05 | Lithium ion storage battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114243150A CN114243150A (en) | 2022-03-25 |
| CN114243150B true CN114243150B (en) | 2024-04-26 |
Family
ID=80748524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111306558.9A Active CN114243150B (en) | 2021-11-05 | 2021-11-05 | Lithium ion storage battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114243150B (en) |
Citations (13)
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| CN204793086U (en) * | 2015-07-31 | 2015-11-18 | 四川长虹电源有限责任公司 | Large capacity lithium ion battery |
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| CN108417753A (en) * | 2018-05-09 | 2018-08-17 | 华霆（合肥）动力技术有限公司 | Soft-package battery expansion absorption device and battery modules |
| CN209150184U (en) * | 2018-11-21 | 2019-07-23 | 卧龙电气集团股份有限公司 | A kind of lithium battery mould group |
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| CN110783510A (en) * | 2019-12-11 | 2020-02-11 | 多氟多新能源科技有限公司 | Novel soft package lithium battery module scheme |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11177518B2 (en) * | 2016-03-29 | 2021-11-16 | Amogreentech Co., Ltd. | Heat-radiating cartridge, and battery pack for electric vehicle using same |
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2021
- 2021-11-05 CN CN202111306558.9A patent/CN114243150B/en active Active
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| CN204793086U (en) * | 2015-07-31 | 2015-11-18 | 四川长虹电源有限责任公司 | Large capacity lithium ion battery |
| CN106785196A (en) * | 2016-12-09 | 2017-05-31 | 德阳九鼎智远知识产权运营有限公司 | A kind of Li-ion batteries piles of energy Homogeneouslly-radiating |
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| CN209298217U (en) * | 2019-01-25 | 2019-08-23 | 惠州亿纬锂能股份有限公司 | A kind of battery core block structure |
| CN209822811U (en) * | 2019-07-03 | 2019-12-20 | 北京国能驭新科技有限公司 | Lithium battery module assembly structure suitable for square-packaged battery core |
| CN210272437U (en) * | 2019-09-06 | 2020-04-07 | 江苏塔菲尔新能源科技股份有限公司 | Battery module end plate and battery module |
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| CN110783510A (en) * | 2019-12-11 | 2020-02-11 | 多氟多新能源科技有限公司 | Novel soft package lithium battery module scheme |
| CN111554835A (en) * | 2020-05-09 | 2020-08-18 | 珠海冠宇电池股份有限公司 | Method for improving safety performance of battery cell |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114243150A (en) | 2022-03-25 |
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