CN212161896U - Integrated water-cooling battery module and power battery pack - Google Patents
Integrated water-cooling battery module and power battery pack Download PDFInfo
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- CN212161896U CN212161896U CN202020698513.5U CN202020698513U CN212161896U CN 212161896 U CN212161896 U CN 212161896U CN 202020698513 U CN202020698513 U CN 202020698513U CN 212161896 U CN212161896 U CN 212161896U
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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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Abstract
The utility model relates to a power battery makes technical field, discloses an integrated water-cooling battery module and power battery package, wherein integrated water-cooling battery module include a plurality of electric core groups that form by electric core superpose side by side, the both sides of every electric core group all are equipped with the side water-cooling board, be equipped with the curb plate runner in the side water-cooling board, side water-cooling board and end plate link to each other, be equipped with the end plate runner in the end plate, curb plate runner and end plate runner communicate each other, still be equipped with water inlet and the delivery port that is used for cooling water input and discharge on the end plate. The utility model discloses set up the side water-cooling board in the both sides of electric core group and form complete cooling flow channel frame with the end plate, solved the too big problem of the difference in temperature that brings because of the cooling effect difference between the battery membrane group, saved the space in the power battery package, simplified the inner structure of power battery package.
Description
Technical Field
The utility model relates to a power battery makes technical field, specifically relates to integrated water-cooling battery module and power battery package.
Background
During the use process of the power battery, the power battery is often in a high-energy density and high-power discharge state, and in this state, a large amount of heat is generated. In order to ensure that the power battery can work stably for a long time, a cooling structure is arranged in the power battery for cooling. In the prior art, the cooling structure is separated from the battery module, and the internal structure of the power battery pack is generally complicated. When the structure that the inside battery module of power battery package and water cooling system adopted the separation to set up, whole cooling system need occupy the inside very big space of power battery package, and if when the inner space of power battery package itself is less, the pencil, pipeline trend and space problem will seem more outstanding, and the separation sets up the cooling system between the battery module of difference, its cooling effect is also different, can cause the difference in temperature great between the battery membrane group that sets up in the inside different positions of power battery package, seriously influence power battery's use and life-span.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem that the battery module cooling effect that prior art exists is poor, the difference in temperature is big, providing integrated water-cooled battery module and power battery package, the utility model discloses set up the side water-cooled board in the both sides of electric core group and form complete cooling runner frame with the end plate, solved the too big problem of difference in temperature that brings because of the cooling effect difference between the battery diaphragm group, saved the space in the power battery package, simplified the inner structure of power battery package.
In order to realize the above object, the utility model provides an integrated water-cooled battery module on the one hand, include a plurality of electric core groups that are formed by electric core superpose side by side, every the both sides of electric core group all are equipped with the side water-cooling board, be equipped with the curb plate runner in the side water-cooling board, side water-cooling board and end plate link to each other, be equipped with the end plate runner in the end plate, the curb plate runner with the end plate runner communicates each other, still be equipped with on the end plate and be used for cooling water input and exhaust water inlet and delivery port.
Preferably, the end plate includes a front end plate and a rear end plate, and the end plate flow passage is provided in one of the front end plate or the rear end plate.
Preferably, the side plate runners include a first water inlet runner and a first water outlet runner which are communicated with each other, and the number of the first water inlet runner and the first water outlet runner is multiple;
the end plate flow channels comprise a second water inlet flow channel and a second water outlet flow channel, and the number of the second water inlet flow channel and the second water outlet flow channel is one;
the second water inlet flow channel is connected with the water inlet, and the second water outlet flow channel is connected with the water outlet;
the first and second water inlet flow passages, the first and second water outlet flow passages are communicated with each other.
Preferably, the first water inlet flow channels are arranged above the first water outlet flow channels, and the number of the first water inlet flow channels is larger than that of the first water outlet flow channels.
Preferably, the second water inlet flow passage is disposed above the second water outlet flow passage.
Preferably, the front and rear ends of the side water-cooling plate arranged at the outer side of the electric core group at the outermost side of the battery module and the left and right sides of the end plates are correspondingly provided with bending plug parts, each bending plug part comprises a plug connector arranged on one of the side water-cooling plate or the end plate and a plug socket correspondingly arranged on the other one of the side water-cooling plate and the end plate, and the plug connectors are inserted into the plug sockets for fixation;
the front end and the rear end of the side water cooling plates arranged between the two adjacent electric core groups and one side of the end plate facing the battery module are correspondingly provided with a plug part, the plug part comprises a plug arranged on one of the side water cooling plates or the end plate and a slot correspondingly arranged on the other of the side water cooling plates or the end plate, and the plug is inserted into the slot for fixation.
Preferably, an aerogel layer is arranged between the electric cores which are stacked side by side to form the electric core group.
Preferably, heat conducting structural adhesive layers used for increasing heat exchange efficiency are respectively arranged between the electric core groups and the side water cooling plates.
Preferably, fixing belts are encircled outside the side water cooling plate and the front end plate and the rear end plate;
the fixing band comprises a steel binding belt and a belt;
the steel bandage sets up the top of belt.
The utility model discloses the second aspect provides a power battery package, include as above integrated water-cooling battery module.
Through the technical scheme, the utility model discloses set up the side water-cooling board in the both sides of electric core group and form complete cooling runner frame with the end plate, solved the too big problem of the difference in temperature that brings because of the cooling effect difference between the battery membrane group, saved the space in the power battery package, simplified the inner structure of power battery package.
Drawings
Fig. 1 is a schematic view of an overall structure of an integrated water-cooled battery module according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a schematic view of a communication structure between a side plate flow passage and an end plate flow passage in an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure between the side plate and the front and rear end plates according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
fig. 6 is an enlarged view of a portion B of fig. 4.
Description of the reference numerals
100 battery module 101 electric core 102 aerogel layer 103 thermal conductive structural adhesive layer 104 steel band 105 belt 105 electric core group 110 side water cooling plate 121 first water inlet flow passage 122 first water outlet flow passage 123 plug 124 slot 130 front end plate 131 water inlet 132 water outlet 133 second water inlet flow passage 134 second water outlet flow passage 135 plug seat 140 rear end plate 141 plug
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" generally refer to the inner and outer relative to the profile of the components themselves; "distal and proximal" generally refer to distance relative to the contour of the components themselves.
As shown in fig. 1 in combination with fig. 2, the utility model provides an integrated water-cooled battery module 100, including a plurality of electric core groups 110 that are formed by stacking electric core 101 side by side, every the both sides of electric core group 110 all are equipped with side water-cooled plate 120, be equipped with the curb plate runner in the side water-cooled plate 120. The side water cooling plate 120 is connected with the end plate, an end plate flow passage is arranged in the end plate, the side plate flow passage is communicated with the end plate flow passage, and a water inlet 131 and a water outlet 132 for inputting and discharging cooling water are further arranged on the end plate.
Typically, the end plates include a front end plate 130 and a rear end plate 140, and the end plate flow channels are disposed on one of the front end plate 130 or the rear end plate 140. In the embodiment shown in fig. 3, the end plate flow channels are provided in the front end plate 130, while the rear end plate 140 is a conventional end plate in which no flow channels are provided. Particularly, the utility model discloses in because interconnect between side water-cooling board 120 and the end plate and make curb plate runner and end plate runner intercommunication to form a complete cooling runner frame, and then put into the cooling runner frame with electric core group 110. Through the structure, the battery core group is fixed, and a cooling circulation system is provided for the battery module. The utility model discloses if both front end plate 130 and back end plate 140 set up the end plate runner, all link together side water-cooling board and two end plates, then can form confined cooling runner frame, if electric core group 110 has machining error and assembly error, then can't accomplish the counterpoint assembly of electric core group 110 in confined cooling runner frame. In view of the above, in the embodiment shown in fig. 3, the present invention employs end plate flow channels disposed only in the front end plate 130, while the rear end plate 140 is used to absorb machining and assembly tolerances.
More specifically, as shown in fig. 3, the side plate flow passages include a first water inlet flow passage 121 and a first water outlet flow passage 122 that communicate with each other, and the number of the first water inlet flow passage 121 and the first water outlet flow passage 122 is provided in plural. In the embodiment shown in fig. 3, three first water inlet flow passages 121 are provided, and two first water outlet flow passages 122 are provided. The above-mentioned arrangement can make the cooling water continuously and stably flow in the side plate flow channel under the action of gravity, so as to play a role of heat dissipation for the electric core assembly 110. In the embodiment shown in fig. 3, the end plate flow channels include a second water inlet flow channel 133 and a second water outlet flow channel 134, and the number of the second water inlet flow channel 133 and the second water outlet flow channel 134 is one; the second water inlet channel 133 is connected to the water inlet 131, and the second water outlet channel 134 is connected to the water outlet 132. The above arrangement facilitates the input of cooling water from the water inlet 131 and the discharge of cooling water from the water outlet 132. It is apparent that the first and second water inlet flow passages 121 and 133, and the first and second water outlet flow passages 122 and 134 are communicated with each other. In order to facilitate the continuous flow of the cooling water in the cooling flow channel frame, in the embodiment shown in fig. 3, the first water inlet flow channel 121 is disposed above the first water outlet flow channel 122, and the number of the first water inlet flow channels 121 is greater than the number of the first water outlet flow channels 122, that is: the first water inlet flow passage 121 is provided in three, and the first water outlet flow passage 122 is provided in two. Similarly, the second water inlet channel 133 is disposed above the second water outlet channel 134.
As can be seen from the above, in the cooling flow channel frame of the present embodiment, the side plate flow channels of each side water-cooling plate 120 are arranged in a three-in two-out structure, the water inlet 131 and the water outlet 132 are welded to the front end plate 130, and the straight flow channel is opened inside the front end plate 130. The side cooling mode has simple structure, small pressure drop and easy processing; the connection is realized by welding, and no pipeline exists, so that the space is saved; meanwhile, the flowing distance of water flow flowing out of each flow channel is the same, better flow distribution is achieved, the cooling effect on the battery module is balanced, the temperature difference between the electric core groups at different positions is small, and the temperature is uniform. Meanwhile, because the side plate flow channel main bodies in each side water cooling plate have the same size and specification, the water inlet and outlet modules of the flow channel are connected with the flow channel main body in a welding mode and can reduce the processing cost.
As shown in fig. 4 in combination with fig. 5 and 6, the front and rear ends of the side water-cooling plate 120 and the left and right sides of the end plate, which are disposed at the outer side of the electric core pack 110 at the outermost side of the battery module, are correspondingly provided with bent insertion portions, each bent insertion portion includes an insertion plug disposed on one of the side water-cooling plate or the end plate, and an insertion socket disposed on the other of the side water-cooling plate or the end plate, and the insertion plug is inserted into the insertion socket for fixing. In the embodiment shown in fig. 4 in combination with fig. 5, the bent plug portion includes a plug 123 disposed on the side water-cooling plate 120 and a plug seat 135 correspondingly disposed on the front end plate 130, and the plug 123 is inserted into the plug seat 135 to form a bent shape, and simultaneously, the side plate flow channel and the end plate flow channel are communicated. In addition, the front and rear ends of the side water-cooling plate 120 and the side of the end plate facing the battery module, which are arranged between two adjacent electric core groups, are correspondingly provided with a plug part, the plug part comprises a plug arranged on one of the side water-cooling plate 120 or the end plate, and a slot correspondingly arranged on the other one of the side water-cooling plate 120 and the end plate, and the plug is inserted into the slot for fixing. As shown in fig. 4 in combination with fig. 6, the patch panel includes a slot 124 disposed on the side water-cooling plate 120 and a plug 141 disposed on the rear end plate 140, and the side water-cooling plate 120 can be inserted into the slot 124 through the plug 141 to be fixedly connected; the side water-cooling plate 120 may be fixedly coupled to the front end plate 130 in the same manner. Of course, the plugs may be disposed on the side water-cooling plate 120, and the slots are correspondingly disposed on the front end plate 130 and the rear end plate 140 to achieve the fixed connection between the side water-cooling plate and the front and rear end plates, which may be selected according to the requirement in practical application.
As shown in fig. 2, an aerogel layer 102 is disposed between the electric cells 101 stacked side by side to form the electric core pack 110. And heat-conducting structural adhesive layers 103 for increasing heat exchange efficiency are respectively arranged between the electric core groups 110 and the side water-cooling plates 120. In addition, in order to fix the connected side water cooling plates 120, the front end plate 130 and the rear end plate 140 more tightly, fixing bands are arranged around the outer sides of the side water cooling plates 120, the front end plate 130 and the rear end plate 140. The fixing strap comprises a steel tie strap 104 and a strap 105, wherein the steel tie strap 104 is arranged above the strap 105, according to the positioning needs during assembly and the fastening needs of the product, respectively.
The utility model discloses the second aspect provides a power battery package, include as above integrated water-cooling battery module 100. In the power battery pack provided in the present embodiment, a plurality of electric core groups 110 are fastened to a belt 105 by a steel tie 104; an aerogel layer 102 is arranged between the battery cells 101; a heat-conducting structural adhesive layer 103 is filled among the adjacent electric core groups 110, the electric core groups 110 and the side water-cooling plates 120 to increase the heat exchange efficiency; the water inlet 131 and the water outlet 132 are respectively arranged on the front end plate 130, an end plate flow passage inside the front end plate 130 is communicated with side plate flow passages in the three side water-cooling plates 120, and cooling water in the flow passages is in a straight flow passage mode, and is in three inlets and two outlets, so that the battery module 110 is effectively cooled.
The assembly process of the battery module according to the present invention will be described in detail with reference to fig. 1 to 6.
Before assembly, it is first necessary to fixedly connect the side water cooling plates and the end plates provided with the end plate flow passages, in this embodiment, three side water cooling plates 120 are respectively connected with the front end plate 130, and the side plate flow passages provided in the side water cooling plates 120 and the end plate flow passages provided in the front end plate 130 are communicated with each other. Specifically, the inlet and outlet of the side plate flow channel in the side water cooling plate 120 located at the outermost side of the battery module 100 are bent to form a bent connection portion, and the plug 123 disposed on the side water cooling plate 120 is inserted into the plug seat 135 correspondingly disposed on the front end plate 130, so that the side water cooling plate 120 extends into the inner side of the front end plate 130 at the connection position, and is connected together by welding, thereby not only ensuring the sealing and connection of the flow channel, but also providing support for the side water cooling plate 120. Similarly, one end of the side water-cooling plate 120 located in the middle of the battery module 100 is fixedly connected to the rear end plate 140 by inserting the plug 141 into the slot 124, and the side water-cooling plate 120 is fixedly connected to the front end plate 130 by the same method, so that the side water-cooling plate 120 can be supported and positioned. After the relative positional relationship and the mutual connection structure between the components are correspondingly arranged, the front end plate 130 and the three side water-cooling plates 120 are assembled into a complete cooling flow channel frame by welding. Then, strapping and pre-positioning each component which needs to be assembled together through a belt 105 with certain elasticity, then assembling the battery core 101, the heat-conducting structure adhesive layer 103 and the aerogel layer 102, and finally connecting and fixing the rear end plate 140 and the whole body through a steel binding belt 104, so that the complete assembling process of the battery module can be completed. The utility model discloses because side water-cooling board 120 sets up the side at electric core group 110, side water-cooling board 120 all is not atress in whole assembling process, and in prior art, because the water-cooling board does not set up in the side, all can bear the weight of electric core in the different degree. While the general stamped plates for brazing and the like cannot bear the load or have poor bearing capacity, the water cooling plate needs to be thickened in order to ensure the strength, and therefore the energy density of the whole power battery pack is reduced.
In summary, the utility model saves the space in the power battery pack, simplifies the internal structure of the power battery pack, has low processing cost of the flow channel, uniform flow distribution and low pressure drop by arranging the side water cooling plates at the two sides of the electric core pack and forming a complete cooling flow channel frame with the end plate, and the combination of the end plate and the flow channel not only saves the space and can provide the support of the cooling plate, effectively solves the problem of overlarge temperature difference caused by different cooling effects among the battery membrane packs,
the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The utility model discloses an in the technical conception scope, can be right the technical scheme of the utility model carry out multiple simple variant, for example, can change the quantity that sets up of the curb plate runner in every piece side water-cooling board according to the quantity that sets up of electric core group. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. The utility model provides an integrated water-cooling battery module, includes a plurality of electric core group (110) that form by electric core (101) superpose side by side, its characterized in that, every the both sides of electric core group (110) all are equipped with side water-cooling board (120), be equipped with the curb plate runner in side water-cooling board (120), side water-cooling board (120) and end plate link to each other, be equipped with the end plate runner in the end plate, the curb plate runner with the end plate runner communicates each other, still be equipped with on the end plate and be used for cooling water input and exhaust water inlet (131) and delivery port (132).
2. The integrated water-cooled battery module according to claim 1, wherein the end plates comprise a front end plate (130) and a rear end plate (140), and the end plate flow channels are provided on one of the front end plate (130) or the rear end plate (140).
3. The integrated water-cooled battery module according to claim 2, wherein the side plate flow channels comprise a first water inlet flow channel (121) and a first water outlet flow channel (122) which are communicated with each other, and the number of the first water inlet flow channel (121) and the first water outlet flow channel (122) is multiple;
the end plate flow channel comprises a second water inlet flow channel (133) and a second water outlet flow channel (134), and the number of the second water inlet flow channel (133) and the second water outlet flow channel (134) is one;
the second water inlet channel (133) is connected with the water inlet (131), and the second water outlet channel (134) is connected with the water outlet (132);
the first and second water inlet flow passages (121, 133), the first and second water outlet flow passages (122, 134) communicate with each other.
4. The integrated water-cooled battery module according to claim 3, wherein the first water inlet flow channel (121) is arranged above the first water outlet flow channel (122), and the number of the first water inlet flow channel (121) is greater than the number of the first water outlet flow channel (122).
5. The integrated water-cooled battery module according to claim 3, wherein the second water inlet channel (133) is disposed above the second water outlet channel (134).
6. The integrated water-cooling battery module according to claim 1, wherein the front and rear ends of the side water-cooling plates (120) and the left and right sides of the end plates, which are arranged at the outer sides of the electric core groups (110) at the outermost sides of the battery module, are correspondingly provided with bent plug parts, each bent plug part comprises a plug connector (123) arranged on one of the side water-cooling plates (120) or the end plates and a plug socket (135) correspondingly arranged on the other of the side water-cooling plates (120) or the end plates, and the plug connectors (123) are inserted into the plug sockets (135) for fixation;
the front end and the rear end of the side water cooling plate (120) arranged between two adjacent electric core groups (110) and one side of the end plate facing the battery module are correspondingly provided with a plug part, the plug part comprises a plug (141) arranged on one of the side water cooling plate (120) or the end plate and a slot (124) correspondingly arranged on the other one of the side water cooling plate or the end plate, and the plug (141) is inserted into the slot (124) for fixing.
7. The integrated water-cooled battery module according to claim 1, characterized in that an aerogel layer (102) is arranged between the electric cores (101) stacked side by side to form the electric core group (110).
8. The integrated water-cooled battery module according to claim 1, wherein heat-conducting structural adhesive layers (103) for increasing heat exchange efficiency are respectively arranged between the electric core groups (110) and the side water-cooled plates (120).
9. The integrated water-cooled battery module according to claim 2, characterized in that fixing bands are arranged around the outer sides of the side water-cooled plate (120), the front end plate (130) and the rear end plate (140);
the fixing band comprises a steel binding band (104) and a belt (105);
the steel tie (104) is disposed above the belt (105).
10. A power battery pack, characterized by comprising an integrated water-cooled battery module (100) according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020698513.5U CN212161896U (en) | 2020-04-29 | 2020-04-29 | Integrated water-cooling battery module and power battery pack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020698513.5U CN212161896U (en) | 2020-04-29 | 2020-04-29 | Integrated water-cooling battery module and power battery pack |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768805A (en) * | 2021-01-22 | 2021-05-07 | 倍登新能源科技（苏州）有限公司 | Integrated liquid cooling battery box |
| CN113707998A (en) * | 2021-10-28 | 2021-11-26 | 三一汽车制造有限公司 | Battery package, battery package subassembly and vehicle |
| CN114335795A (en) * | 2021-11-30 | 2022-04-12 | 中国第一汽车股份有限公司 | Integrated battery assembly with double-layer module, electric vehicle and design method |
| EP4109630A1 (en) * | 2021-06-22 | 2022-12-28 | Volvo Car Corporation | Cooling system for a battery module |
| CN117059949A (en) * | 2023-08-08 | 2023-11-14 | 苏州星羽翔电子科技有限公司 | Battery module, battery pack, and method for manufacturing battery module |
| US12062768B2 (en) | 2021-07-29 | 2024-08-13 | Contemporary Amperex Technology Co., Limited | Battery, electricity-consuming apparatus, method for manufacturing battery and system of manufacturing battery |
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2020
- 2020-04-29 CN CN202020698513.5U patent/CN212161896U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768805A (en) * | 2021-01-22 | 2021-05-07 | 倍登新能源科技（苏州）有限公司 | Integrated liquid cooling battery box |
| EP4109630A1 (en) * | 2021-06-22 | 2022-12-28 | Volvo Car Corporation | Cooling system for a battery module |
| US12062768B2 (en) | 2021-07-29 | 2024-08-13 | Contemporary Amperex Technology Co., Limited | Battery, electricity-consuming apparatus, method for manufacturing battery and system of manufacturing battery |
| CN113707998A (en) * | 2021-10-28 | 2021-11-26 | 三一汽车制造有限公司 | Battery package, battery package subassembly and vehicle |
| CN114335795A (en) * | 2021-11-30 | 2022-04-12 | 中国第一汽车股份有限公司 | Integrated battery assembly with double-layer module, electric vehicle and design method |
| CN117059949A (en) * | 2023-08-08 | 2023-11-14 | 苏州星羽翔电子科技有限公司 | Battery module, battery pack, and method for manufacturing battery module |
| CN117059949B (en) * | 2023-08-08 | 2024-03-19 | 苏州星羽翔电子科技有限公司 | Battery module, battery pack, and method for manufacturing battery module |
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