CN112490537A - Immersed cooling mechanism of lithium ion battery and lithium ion battery module - Google Patents
Immersed cooling mechanism of lithium ion battery and lithium ion battery module Download PDFInfo
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- CN112490537A CN112490537A CN202011511503.7A CN202011511503A CN112490537A CN 112490537 A CN112490537 A CN 112490537A CN 202011511503 A CN202011511503 A CN 202011511503A CN 112490537 A CN112490537 A CN 112490537A
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- cooling
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- lithium ion
- ion battery
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The embodiment of the invention relates to a lithium ion battery, in particular to an immersed cooling mechanism of the lithium ion battery and a lithium ion battery module, wherein the immersed cooling mechanism comprises: a closed container and a cooling circulation device which are composed of a plurality of wall plates; the cooling cavity is used for being filled with cooling media, a plurality of installation positions for fixing the battery monomers are further arranged in the cooling cavity, each battery monomer of the battery pack can be fixed in the cooling cavity of the sealed container through each installation position, at least one wall plate of the sealed container is a cooling plate with a cavity, and the cooling plate is further provided with a water inlet end and a water outlet end which are communicated with the cooling cavity; the submerged cooling mechanism further comprises: and the cooling circulating device is arranged outside the closed container and is respectively connected with the water inlet end and the water outlet end. Compared with the prior art, the method can greatly reduce the usage amount of the cooling medium, and can prolong the service life of the cooling medium, thereby effectively reducing the use cost of the cooling medium.
Description
Technical Field
The embodiment of the invention relates to a lithium ion battery, in particular to an immersed cooling mechanism of the lithium ion battery and a lithium ion battery module.
Background
With the vigorous development of environment-friendly novel energy in China, lithium batteries become main power sources of energy storage, UPS and electric automobiles, wherein the electric automobiles develop most quickly, but also bring some problems, for example, great differentiation exists in the aspect of heat management of battery packs. The existing battery pack mainly adopts heat dissipation modes such as natural cooling, air cooling, pipeline type liquid cooling and the like, and the heat dissipation problem of the battery pack can be relieved to a certain extent by the heat management mode, but the problem of heating of the battery pack under various working conditions and various environments cannot be fundamentally and thoroughly solved. Therefore, at present, each battery cell in the battery pack is immersed in a container filled with a cooling medium, and the cooling medium in the container is circulated continuously through an external circulation device to cool each battery cell in the battery pack, although the cooling method has a good cooling effect, because the cooling medium needs to be circulated continuously by a circulation device, the cooling medium in the container can be continuously conveyed to an external cooling system and cooled by the cooling system again, and the cooling medium cooled by the cooling system can be returned to the container again to achieve the purpose of cooling the battery cells, although the cooling method has a good cooling effect, in order to maintain the cooling effect, the cooling medium in the container after heat exchange is performed on the battery and the cooling medium outside the container after refrigeration by the cooling system need to be continuously circulated by the circulation device, therefore, a large amount of cooling medium is needed, and since the cooling medium is non-conductive cooling liquid, the cooling liquid is generally too expensive and affects the service life of the cooling liquid after repeated circulation, and therefore, the cooling medium needs to be replaced frequently, which results in too high use cost.
Disclosure of Invention
An object of an embodiment of the present invention is to provide an immersion cooling mechanism for a lithium ion battery and a lithium ion battery module, which can reduce the usage amount of a cooling medium for cooling a battery pack, thereby effectively reducing the usage cost of a cooling liquid.
In order to achieve the above object, an embodiment of the present invention provides an immersion cooling mechanism for a lithium ion battery, including:
a closed container formed by a plurality of wall plates; a cooling cavity for filling cooling media is arranged in the closed container, a plurality of mounting positions for fixing the battery monomer are further arranged in the cooling cavity, at least one wall plate is a cooling plate with a cavity, and a water inlet end and a water outlet end which are communicated with the cooling cavity are further arranged on the cooling plate;
and the cooling circulating device is respectively connected with the water inlet end and the water outlet end.
In addition, an embodiment of the present invention further provides a lithium ion battery module, including: the battery pack is composed of a plurality of battery monomers, and the immersed cooling mechanism is used for cooling the battery pack;
the number of the battery monomers is the same as that of the installation positions and is uniquely corresponding to the installation positions, and each battery monomer is fixedly arranged at the uniquely corresponding installation position.
Compared with the prior art, the embodiment of the invention has the advantages that the cooling cavity filled with the cooling medium is arranged in the closed container, at least one wall plate of the closed container is the cooling plate with the cavity, the cooling plate is also provided with the water inlet end and the water outlet end, and the water inlet end and the water outlet end are connected with the cooling circulating device, so that when in practical application, the cooling medium in the cooling cavity can be used for cooling each battery monomer, the cavity of the cooling plate is filled with the cooling water, under the action of the cooling circulating device, the cooling water can continuously circulate in the cavity through the water inlet end and the water outlet end on the cooling plate, the heat exchange with the cooling medium in the cooling cavity can be realized, the cooling medium can continuously cool each battery monomer in the battery pack by the most sufficient cooling capacity, and the cavity in the cooling plate is independent from the cooling cavity of the closed container, therefore, the cooling water adopted in the cooling plate does not need to consider the electric conduction characteristic thereof, and can be used as a cold source during heat exchange only by adopting common cooling water without considering the electric conduction characteristic of the cooling water. Due to the heat dissipation mode of each battery cell, the using amount of the cooling medium can be greatly reduced, and meanwhile, the cooling medium in the cooling cavity does not need to be circulated, so that the service cycle of the cooling medium in the cooling cavity is prolonged, and the use cost of the cooling medium is effectively reduced.
In addition, each wall plate of the closed container is respectively: the cooling structure comprises a bottom plate, a cover plate opposite to the bottom plate and at least one side plate arranged between the bottom plate and the cover plate, wherein the side plates surround between the bottom plate and the cover plate to form a cooling cavity;
the cover plate is detachably covered on one side of the side plate, which is far away from the bottom plate.
In addition, the bottom plate, the cover plate, or the side plate is the cooling plate.
In addition, the cover plate is the cooling plate, and one side of the cover plate, which is opposite to the bottom plate, is also provided with heat conduction fins entering the cooling cavity.
In addition, the heat conduction fins are provided with a plurality of pieces, and the heat conduction fins are arranged on one side of the cover plate, which is opposite to the bottom plate, along a preset linear direction.
In addition, along the circumferential direction of the cover plate, the water inlet end and the water outlet end are arranged on the same side of the cover plate;
or the water inlet end and the water outlet end are respectively arranged at two opposite sides of the cover plate.
In addition, the installation site includes at least: the groove is formed in one side, opposite to the cover plate, of the bottom plate and used for being inserted by the battery single part.
In addition, the notch of the groove is a V-shaped opening.
In addition, an overflow groove is arranged at the bottom of the groove.
In addition, the closed vessel further includes: a support plate disposed within the cooling cavity, the support plate disposed parallel to the cover plate and the base plate;
corresponding to the recess, the installation position still includes: the positioning hole is arranged on the supporting plate and can be penetrated by the battery monomer.
Drawings
FIG. 1 is a schematic structural view of a closed vessel according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an immersion cooling mechanism of a lithium ion battery according to a first embodiment of the present invention;
fig. 3 is a schematic assembly diagram of the immersion cooling mechanism and each battery cell of the battery pack according to the first embodiment of the present invention;
fig. 4 is a schematic view illustrating the assembly of a battery cell with a base plate and a support plate according to a first embodiment of the present invention;
FIG. 5 is a schematic view showing the connection of a cover plate to a cooling cycle apparatus according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a lithium ion battery module according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to an immersion cooling mechanism for a lithium ion battery, as shown in fig. 1, including: a closed container 1 composed of a plurality of wall plates 13 and a cooling circulation device 4.
As shown in fig. 2, a cooling cavity 11 for filling a cooling medium is formed in the sealed container 1, the cooling cavity 11 further has a plurality of mounting locations 12 for fixing the battery cells 31, and each battery cell 31 of the battery pack 3 can be fixed in the cooling cavity 11 of the sealed container 1 through each mounting location 12. As shown in fig. 1 and 2, at least one wall plate 13 of the closed container 1 is a cooling plate having a cavity 131, and the cooling plate further has a water inlet 132 and a water outlet 133 communicating with the cooling chamber 11.
As shown in fig. 5, the immersion cooling mechanism of the present embodiment further includes: and a cooling circulation device 4 disposed outside the sealed container, wherein the cooling circulation device 4 is connected to the water inlet end 132 and the water outlet end 133 respectively.
As can be seen from the above, in practical applications, as shown in fig. 2, 3 and 4, the cooling of each battery cell 31 can be realized by the cooling medium in the cooling cavity 11, at the same time, the cavity 131 of the cooling plate is filled with cooling water, and under the action of the cooling circulation device, through the water inlet end 132 and the water outlet end 133 of the cooling plate, the cooling water can be continuously circulated in the cavity 131, thereby realizing heat exchange with the cooling medium in the cooling cavity 11, leading the cooling medium to have the most cold quantity to continuously cool each battery monomer 31 in the battery pack 3 all the time, in addition, since the cavity 131 in the cooling plate and the cooling chamber 11 of the hermetic container 1 are independent from each other, therefore, the cooling water adopted in the cooling plate does not need to consider the electric conduction characteristic thereof, and can be used as a cold source during heat exchange only by adopting common cooling water without considering the electric conduction characteristic of the cooling water. Due to the heat dissipation mode of each battery cell, the using amount of the cooling medium can be greatly reduced, and meanwhile, the cooling medium in the cooling cavity 11 does not need to be circulated, so that the service cycle of the cooling medium in the cooling cavity is prolonged, and the using cost of the cooling medium is effectively reduced.
Specifically, in the present embodiment, as shown in fig. 2 and 3, the wall plates 13 of the closed casing 1 are: the cooling structure comprises a bottom plate 13A, a cover plate 13B opposite to the bottom plate 13A, and at least one side plate 13C arranged between the bottom plate 13B and the cover plate 13A, wherein each side plate 13C surrounds between the bottom plate 13A and the cover plate 13B to form a cooling cavity 11. In the present embodiment, the cover plate 13B is detachably provided on the side of the side plate 13C away from the bottom plate 13A, that is, in the present embodiment, the cover plate 13B and the side plate 13C are detachably connected, and the cooling chamber 11 of the sealed container 1 can be opened or closed by the cover plate 13B, so that the battery cells 31 of the battery pack 3 can be placed and the cooling medium can be replaced.
In the present embodiment, one or more wall plates 13 of the bottom plate 13A, the cover plate 13B, and the side plates 13C may be cooling plates. However, as shown in fig. 2, in the present embodiment, only the cover plate 13B is taken as an example of a cooling plate, and as shown in fig. 3, when the cooling medium in the cooling cavity 11 of the sealed container 1 cools each battery cell 31, the heat exchange is performed on each battery cell 31, so that the temperature of the cooling medium gradually increases, and by virtue of the physical characteristics of heat rise and cold sink, the heat in the cooling medium can exchange heat with the cooling water in the cover plate 13B after rising, and the heat can be taken out of the sealed container 1 under the circulation action of the cooling circulation device 4, so that the cooling medium in the cooling cavity 11 can always have a low temperature, and the purpose of continuously cooling each battery cell 31 is achieved.
In addition, in the present embodiment, in order to improve the heat exchange efficiency of the cover plate 13B with respect to the cooling medium, in the present embodiment, the cover plate 13B is a metal plate, and since the metal has a better heat transfer performance with respect to other materials, the heat exchange efficiency with respect to the cooling medium can be further increased. In addition, as shown in fig. 5, in some embodiments, the cavity 131 of the cover plate 13B is further provided with a plurality of partition plates 134, so that the cavity 131 can be divided into a plurality of continuous S-shaped flow channels by the partition plates 134, and the cooling water entering the cavity 131 through the water inlet end 132 can flow in the cavity 1 for a long time, so as to fully exchange heat with the cooling medium in the cooling cavity 11, and further improve the heat exchange effect with the cooling medium. Moreover, it should be noted that, in order to meet the actual usage requirement, the water inlet end 132 and the water outlet end 133 may be disposed on the same side of the cover plate 13B along the circumferential direction of the cover plate 13B, or, as shown in fig. 5, the water inlet end 132 and the water outlet end 133 may also be disposed on any two opposite sides of the cover plate.
In addition, in order to further improve the heat exchange effect of the cover plate 13B with respect to the cooling medium, in the present embodiment, as shown in fig. 2 and 3, a heat conduction fin 135 that enters the cooling chamber 11 is further provided on the side of the cover plate 13B opposite to the bottom plate 13A. Therefore, in practical use, the contact area between the cover plate 13B and the cooling medium can be increased by the heat conduction fins 135, and the heat exchange efficiency of the cover plate 13B for the cooling medium can be further increased by the circulation of the cooling water in the cavity of the cover plate 13B. In some embodiments, as shown in fig. 4, a plurality of heat dissipation fins 135 may be provided, and each of the heat dissipation fins 135 is arranged along a predetermined straight line on the side of the cover plate 13B opposite to the base plate 13A. In the present embodiment, the plurality of heat dissipating fins 135 are described only by way of example as being arranged in a linear direction, but in the course of practical application, the heat dissipating fins may be formed in a circular array or distributed in another arrangement, and in the present embodiment, the distribution of the heat dissipating fins 135 is not particularly limited.
Furthermore, as shown in fig. 2 and 3, each of the installation sites 12 mentioned in the present embodiment at least includes: grooves 121 are formed in the bottom plate 13A on the side opposite to the cover plate 13B, and the grooves 121 are respectively used for being partially inserted by the battery cells 31. The positioning of the battery cells 31 can be realized by the grooves 12. In addition, in order to further facilitate the insertion of the battery cell 31 into the groove 121 during the assembly process, as shown in fig. 4, the notch of each groove 121 is a V-shaped opening 1211, the insertion of the battery cell 31 can be guided by the V-shaped opening 1211, and the groove bottom 1212 of each groove 121 is further provided with an overflow groove 122, so that the cooling medium in the cooling cavity 11 can permeate into the overflow groove 122 through the overflow groove 122, and therefore, after the battery cell 31 is inserted into the groove 121, the cooling medium in the overflow groove 122 can achieve the cooling effect on the bottom of the battery cell 31, thereby avoiding the generation of a blind zone during the cooling of the battery cell and further improving the cooling effect.
In order to more effectively support each battery cell 31, as shown in fig. 2 and 3, the sealed container 1 further includes: a support plate 14 disposed in the cooling chamber 11, and the support plate 14 is disposed parallel to the cover plate 13B and the bottom plate 13A. Meanwhile, each mounting position 12 further includes, corresponding to each groove 121: and a positioning hole 123 opened on the support plate 14 and through which the battery cell 31 can pass. It is thus apparent that the fixing effect of each battery cell 31 can be further improved by each positioning hole 123.
A second embodiment of the present invention relates to a lithium ion battery module, as shown in fig. 6, including: a battery pack 3 including a plurality of battery cells 31, and an immersion cooling mechanism according to the first embodiment.
As shown in fig. 6, in the present embodiment, the number of the battery cells 31 in the battery pack 3 is the same as the number of the mounting positions 12, and each battery cell 31 is fixed in the mounting position 12 corresponding to the unique mounting position.
It can be seen from the above that, the cooling medium in the cooling cavity 11 can be used to cool each battery cell 31, and at the same time, the cavity 131 of the cooling plate is filled with cooling water, and under the action of the cooling circulation device, the cooling water can continuously circulate in the cavity 131 through the water inlet end 132 and the water outlet end 133 on the cooling plate, so as to exchange heat with the cooling medium in the cooling cavity 11, so that the cooling medium can always have the most sufficient cooling capacity to continuously cool each battery cell 31 in the battery pack 3, and in addition, because the cavity 131 in the cooling plate and the cooling cavity 11 of the sealed container 1 are mutually independent, the cooling water adopted in the cooling plate does not need to consider the conductive property thereof, and only needs to adopt common cooling water to be used as a cold source during heat exchange, and does not need to consider the conductive property of the cooling water. Due to the heat dissipation mode of each battery cell, the using amount of the cooling medium can be greatly reduced, and meanwhile, the cooling medium in the cooling cavity 11 does not need to be circulated, so that the service cycle of the cooling medium in the cooling cavity is prolonged, and the using cost of the cooling medium is effectively reduced.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (11)
1. An immersed cooling mechanism for a lithium ion battery, comprising:
a closed container formed by a plurality of wall plates; a cooling cavity for filling cooling media is arranged in the closed container, a plurality of mounting positions for fixing the battery monomer are further arranged in the cooling cavity, at least one wall plate is a cooling plate with a cavity, and a water inlet end and a water outlet end which are communicated with the cooling cavity are further arranged on the cooling plate;
and the cooling circulating device is respectively connected with the water inlet end and the water outlet end.
2. The immersed cooling mechanism for lithium ion battery according to claim 1, wherein each wall plate of the closed container is: the cooling structure comprises a bottom plate, a cover plate opposite to the bottom plate and at least one side plate arranged between the bottom plate and the cover plate, wherein the side plates surround between the bottom plate and the cover plate to form a cooling cavity;
the cover plate is detachably covered on one side of the side plate, which is far away from the bottom plate.
3. The lithium ion battery submersion cooling mechanism of claim 2, wherein the bottom plate, the cover plate, or the side plate is the cooling plate.
4. The immersed cooling mechanism of a lithium ion battery according to claim 3, wherein the cover plate is the cooling plate, and a side of the cover plate opposite to the bottom plate is further provided with a heat conducting fin entering the cooling cavity.
5. The immersed cooling mechanism of lithium ion battery as claimed in claim 4, wherein the heat conducting fins are provided with a plurality of pieces, and each of the heat conducting fins is arranged on one side of the cover plate opposite to the base plate along a preset linear direction.
6. The immersed cooling mechanism of the lithium ion battery according to claim 4, wherein the water inlet end and the water outlet end are arranged on the same side of the cover plate along the circumferential direction of the cover plate;
or the water inlet end and the water outlet end are respectively arranged at two opposite sides of the cover plate.
7. The lithium ion battery submersion cooling mechanism of claim 2, wherein the mounting location comprises at least: the groove is formed in one side, opposite to the cover plate, of the bottom plate and used for being inserted by the battery single part.
8. The lithium ion battery submersion cooling mechanism of claim 7, wherein the notch of the groove is a V-shaped opening.
9. The immersed cooling mechanism of lithium ion battery of claim 7, wherein the bottom of said groove is further provided with an overflow groove.
10. The lithium ion battery submersion cooling mechanism of claim 7, wherein the hermetic container further comprises: a support plate disposed within the cooling cavity, the support plate disposed parallel to the cover plate and the base plate;
corresponding to the recess, the installation position still includes: the positioning hole is arranged on the supporting plate and can be penetrated by the battery monomer.
11. A lithium ion battery module, comprising: a battery pack comprising a plurality of battery cells, an immersion cooling mechanism as claimed in any one of claims 1 to 10;
the number of the battery monomers is the same as that of the installation positions and is uniquely corresponding to the installation positions, and each battery monomer is fixedly arranged at the uniquely corresponding installation position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011511503.7A CN112490537A (en) | 2020-12-18 | 2020-12-18 | Immersed cooling mechanism of lithium ion battery and lithium ion battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011511503.7A CN112490537A (en) | 2020-12-18 | 2020-12-18 | Immersed cooling mechanism of lithium ion battery and lithium ion battery module |
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| Publication Number | Publication Date |
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| CN112490537A true CN112490537A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011511503.7A Pending CN112490537A (en) | 2020-12-18 | 2020-12-18 | Immersed cooling mechanism of lithium ion battery and lithium ion battery module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113659230A (en) * | 2021-07-22 | 2021-11-16 | 的卢技术有限公司 | Battery pack thermal management system, control method thereof and vehicle |
| CN117335051A (en) * | 2023-12-01 | 2024-01-02 | 上海兰钧新能源科技有限公司 | Battery module and battery pack |
-
2020
- 2020-12-18 CN CN202011511503.7A patent/CN112490537A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113659230A (en) * | 2021-07-22 | 2021-11-16 | 的卢技术有限公司 | Battery pack thermal management system, control method thereof and vehicle |
| CN117335051A (en) * | 2023-12-01 | 2024-01-02 | 上海兰钧新能源科技有限公司 | Battery module and battery pack |
| CN117335051B (en) * | 2023-12-01 | 2024-03-19 | 上海兰钧新能源科技有限公司 | Battery module and battery pack |
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Effective date of registration: 20230406 Address after: 201613 1st floor, Building 10, No. 58, Wenxiang East Road, Songjiang District, Shanghai Applicant after: SHANGHAI KEGAI COOLING TECHNOLOGY Co.,Ltd. Address before: 352100 17th floor, Guanyun building, No.6 Xingang Road, Dongqiao Industrial Park, Dongqiao Economic Development Zone, Ningde City, Fujian Province Applicant before: Ningde Yunyu Fluid Technology Co.,Ltd. |
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