CN211605205U - Cover plate assembly and battery - Google Patents
Cover plate assembly and battery Download PDFInfo
- Publication number
- CN211605205U CN211605205U CN202020313867.3U CN202020313867U CN211605205U CN 211605205 U CN211605205 U CN 211605205U CN 202020313867 U CN202020313867 U CN 202020313867U CN 211605205 U CN211605205 U CN 211605205U
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- cover plate
- battery
- utmost point
- plate assembly
- connecting piece
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- 238000003466 welding Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
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- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
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- 239000000919 ceramic Substances 0.000 description 1
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- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a cover plate component and a battery, wherein, the cover plate component comprises a cover plate and poles fixedly arranged on the cover plate, and the number of the poles is not less than two; the cover plate assembly further comprises a connecting piece, the connecting piece is made of a conductive material, the connecting piece is arranged on one side, close to the battery cell, of the cover plate, or the connecting pieces are arranged on the two sides of the cover plate, and the connecting piece is electrically connected with all the poles. Be no less than two utmost point posts through setting up on the apron, when the battery discharges, the electric current is dispersed by a plurality of utmost point posts and is driven outward from a plurality of utmost point posts, the electric current size that single utmost point post passed through has been reduced, thereby the effectual calorific capacity that reduces single tie point, make heat dispersion to each utmost point post go up transmission on the battery casing, make on can be rapid the transmitted battery casing of heat form the heat exchange with external environment, improve the radiating efficiency and reduce the battery temperature, reduce the safety risk of battery when discharging under extreme condition.
Description
Technical Field
The utility model relates to a battery structure technical field especially relates to an apron subassembly and battery.
Background
The battery is widely applied to various fields, has special requirements on output current, temperature characteristics and the like of the battery along with the change of customer requirements and the continuous expansion of application fields, and also puts forward rigorous requirements on the connection mode, reliability, heat productivity, heat dissipation condition and the like of the battery when the battery is required to discharge with a discharge rate of more than 0.1C and continuously discharges with high rate, large current and long time.
In the existing battery, the output form of a single pole is mostly adopted, the pole is positioned in the center of a cover plate assembly and is insulated and fixed through a metal-glass sealing sintering technology, a current collector is reliably connected with the single pole through laser welding or resistance welding, and the current of the connection mode is collected and output on the single pole. For batteries which are discharged by small current or discharged intermittently by large current pulses, the heat productivity of the current collector and welding spots in the batteries is small, and the heat can be dissipated along the current collector and the shell; when the discharge current is large and the discharge is continued for a long time, the heat productivity of the battery can be rapidly increased, the temperature of the current collector and the polar columns is accumulated to form a heat source, so that the temperature of the polar columns is rapidly increased, the heat in the battery can be rapidly increased due to limited heat conduction capability and untimely heat dissipation of a single polar column, and the heat is gradually transferred to the surface of the battery, so that the surface temperature of the battery is rapidly increased; when the temperature inside and on the surface of the battery rises to the critical temperature, the thionyl chloride electrolyte inside the battery is decomposed to release sulfur dioxide gas, so that the internal pressure inside the battery is increased, even the phenomena of bulging and leakage occur, and the phenomena of combustion or explosion can occur in serious conditions, so that the safety of the battery is affected.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at: the utility model provides a cover plate assembly, its radiating efficiency and the connection reliability that can effectual improvement utmost point post.
The embodiment of the utility model provides a another aim at: provided is a battery which has high heat dissipation efficiency and reduces the safety risk of the battery when discharging under extreme conditions.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the cover plate assembly comprises a cover plate and at least two polar columns fixedly arranged on the cover plate, wherein the number of the polar columns is not less than two; the cover plate assembly further comprises a connecting piece, the connecting piece is made of a conductive material, the connecting piece is arranged on one side, close to the battery cell, of the cover plate, or the connecting pieces are arranged on two sides of the cover plate, and the connecting pieces are electrically connected with all the pole columns.
As a preferred technical scheme of the utility model, the connecting piece includes first connecting piece and second connecting piece, first connecting piece is located the apron is close to one side of electricity core, the second connecting piece is located the apron is kept away from on one side of electricity core.
As a preferred technical scheme of the utility model, the connecting piece includes connecting portion and mass flow portion, the mass flow portion with utmost point post is connected, connecting portion fixed set up in on the mass flow portion, connecting portion keep away from the one end of mass flow portion with the utmost point ear of electricity core is connected.
As an optimized technical scheme of the utility model, be provided with two at least convex parts on the mass flow portion, the convex part with utmost point post one-to-one, the convex part with utmost point post is connected.
As an optimized technical solution of the present invention, the connecting portion, the flow collecting portion and the protruding portion are integrally formed.
As a preferred technical scheme of the utility model, all utmost point post is close to the terminal surface of the one end of electric core is located the coplanar, all utmost point post is kept away from the terminal surface of the one end of electric core is located the coplanar.
As a preferred technical solution of the present invention, one end of the pole column away from the electric core is flush with one surface of the cover plate away from the electric core; or the like, or, alternatively,
one end, far away from the battery cell, of the pole protrudes out of one side face, far away from the battery cell, of the cover plate.
As an optimized technical scheme of the utility model, still include the insulating part, the insulating part set up in the connecting piece with between the apron, correspond on the insulating part utmost point post is provided with the confession utmost point post passes the through-hole.
On the other hand, the battery comprises a battery core, a shell and the cover plate assembly, wherein the battery core is arranged in the shell, the cover plate assembly is fixedly arranged on the shell and seals the battery core in the shell, and a connecting piece of the cover plate assembly is connected with a lug of the battery core.
As an optimized technical scheme of the utility model, the inside of casing corresponds the utmost point ear of electricity core is provided with the mass flow piece, the mass flow piece with utmost point ear is connected, the mass flow piece with the connecting piece is connected.
The utility model has the advantages that: be no less than two utmost point posts through setting up on the apron, when the battery discharges, the electric current is dispersed by a plurality of utmost point posts and is driven outward from a plurality of utmost point posts, the electric current size that single utmost point post passed through has been reduced, thereby the effectual calorific capacity that reduces single tie point, make heat dispersion to each utmost point post go up transmission on the battery casing, make on can be rapid the transmitted battery casing of heat form the heat exchange with external environment, improve the radiating efficiency and reduce the battery temperature, reduce the safety risk of battery when discharging under extreme condition. Secondly, through set up the connecting piece on the apron subassembly, connect utmost point post as a whole, utmost point ear and the connection of utmost point post convert into utmost point ear and being connected of connecting piece, can be convenient for realize being connected of utmost point post on electric core and the apron subassembly, reduce the operation degree of difficulty when the utmost point ear of electric core is connected with a plurality of utmost point posts, can also be connected with utmost point post through solitary connecting piece and guarantee the reliability of being connected with utmost point post, avoid when being connected with utmost point ear because the welding degree of difficulty that the operating space is little brought.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a front view of a cover plate assembly according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Fig. 3 is an exploded view of a cover plate assembly according to an embodiment of the present invention.
In the figure:
1. a cover plate; 2. a pole column; 3. a connecting member; 31. a connecting portion; 32. a current collecting portion; 33. convex part 4, insulator.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, in the embodiment, the cover plate assembly of the present invention includes a cover plate 1 and at least two posts 2 fixedly disposed on the cover plate 1, wherein the number of the posts 2 is not less than two; the cover plate assembly further comprises a connecting piece 3, the connecting piece 3 is made of a conductive material, one side, close to the battery core of the battery, of the cover plate 1 is provided with the connecting piece 3, or two sides of the cover plate 1 are provided with the connecting piece 3, and the connecting piece 3 is electrically connected with all the pole columns 2. That is, the connecting member 3 may be separately disposed on only one side of the cover plate 1 close to the battery cell, or the connecting members 3 may be disposed on both sides of the cover plate 1 to connect the terminals 2.
Two utmost point posts 2 are no less than through setting up on apron 1, when the battery discharges, the electric current is dispersed by a plurality of utmost point posts 2 and is exported from a plurality of utmost point posts 2 to outside, the electric current size that single utmost point post 2 passes through has been reduced, thereby the effectual calorific capacity that reduces single tie point, make the heat disperse to each utmost point post 2 go up to the battery casing transmission, make the heat can be rapid transmitted to the battery casing on form the heat exchange with external environment, improve the radiating efficiency and reduce the battery temperature, reduce the safety risk of battery when discharging under extreme. Secondly, through set up connecting piece 3 on the apron subassembly, connect utmost point post 2 as a whole, utmost point ear and utmost point post 2 be connected and convert utmost point ear and connecting piece 3 into, can be convenient for realize being connected of utmost point post 2 on electric core and the apron subassembly, the operation degree of difficulty when reducing the utmost point ear of electric core and being connected with a plurality of utmost point posts 2, can also be connected the joint strength who guarantees to be connected with utmost point post 2 through solitary connecting piece 3 and utmost point post 2, avoid when being connected with utmost point ear because the little welding degree of difficulty of bringing of operating space.
In an alternative embodiment, the connecting element 3 comprises a first connecting element on the side of the cover plate 1 facing away from the cell and a second connecting element on the side of the cover plate 1 facing away from the cell. That is, the connection members 3 are provided on both sides of the cover plate 1, respectively.
The connecting pieces 3 are respectively arranged on the two sides of the cover plate 1, so that the connection between the pole 2 and the pole ear of the battery cell can be conveniently realized; secondly, set up connecting piece 3 in one side of apron 1 keeping away from electric core, can be convenient for realize the output of battery power, the contact dispersion that causes when avoiding setting up a plurality of utmost point posts 2, and make the structure difference grow of battery structure and original battery, guarantee to use the suitability of apron 1's battery.
In a specific embodiment, the connecting member 3 includes a connecting portion 31 and a current collecting portion 32, the current collecting portion 32 is connected to the pole 2, the connecting portion 31 is fixedly disposed on the current collecting portion 32, and an end of the connecting portion 31 away from the current collecting portion 32 is connected to a tab of the battery cell.
As shown in fig. 1 to 3, the connecting member 3 includes a connecting portion 31 and a current collecting portion 32, wherein the current collecting portion 32 is disposed in a ring shape, and the current collecting portion 32 is connected to the pole 2 of the cover plate assembly; then, a connecting portion 31 is arranged on one side of the current collecting portion 32 to be connected with the current collecting portion 32, so that the connecting position of the current collecting portion 32 and the tab is extended, and the connection of the battery cell and the cover plate assembly is achieved in the later period.
In other embodiments, the connecting element 3 may also comprise only the current collector 32, and the tab of the battery cell is directly connected to the current collector 32, so as to connect to the pole 2.
The connecting element 3 on the side of the cover plate 1 facing away from the cell can be selected as the connecting element 3 with the connecting portion 31. When the battery needs to be welded and connected with the electric equipment, the connecting piece 3 structure with the connecting part 31 can be adopted so as to conveniently realize the confluence of all the poles 2 of the battery and conveniently connect with the electric equipment. In addition, can also adopt the connecting piece 3 structure that only collects the flow portion 32, through collecting the flow portion 32 with a plurality of utmost point posts 2 connect back toward outer output current again, at first, can guarantee the inside electric current of battery via a plurality of utmost point posts 2 output, make the electric current dispersion open, and make the heat respectively through utmost point post 2 transmission to the battery outside, improve the heat-sinking capability of battery, secondly, still can make the level and smooth of the output (connecting piece 3) of battery, and guarantee the area of contact of discharge electrode, guarantee can and the consumer between the stable connection.
In a preferred embodiment, at least two convex portions 33 are arranged on the current collecting portion 32, the convex portions 33 correspond to the poles 2 one by one, and the convex portions 33 are connected with the poles 2. Through the convex part 33 that sets up that corresponds with utmost point post 2, can conveniently realize the welding of collecting portion 32 and utmost point post 2, the convenient observation to the welding condition avoids collecting portion 32 to influence the connection operation to sheltering from of electrode. Through the design, the size of the current collecting part 32 can be set to be smaller than the area surrounded by the plurality of poles 2, the consumption of the current collecting part 32 on materials can be effectively reduced, and the volume occupation of the current collecting part 32 is reduced.
In the embodiment of the present invention, the connecting portion 31, the collecting portion 32, and the protruding portion 33 of the connecting member 3 are integrally formed. The connecting piece 3 is manufactured through integral forming, so that the manufacturing process of the connecting piece 3 can be simplified, and the connecting piece 3 is simply formed at one time through technologies such as stamping, cutting and the like. It is also possible to avoid an additional work load caused by the connection of the connecting portion 31, the current collecting portion 32, and the convex portion 33 and to avoid the occurrence of a situation in which the connection is unstable.
In the embodiment of the utility model, the terminal surface that all utmost point post 2 is close to the one end of electric core is located the coplanar, and the terminal surface that the one end of electric core was kept away from to all utmost point post 2 is located the coplanar. The end faces of the poles 2 are arranged on the same plane, so that the connection of the connecting piece 3 can be realized conveniently.
Further, one end of the pole column 2, which is far away from the battery core, is flush with one surface of the cover plate 1, which is far away from the battery core; or one end of the pole column 2, which is far away from the battery core, protrudes out of one side face of the cover plate 1, which is far away from the battery core. The height of one end of the battery cell is far away from the control pole 2, so that the protruding height of the output end of the cover plate assembly can be effectively controlled.
The post 2 of the present invention may be a positive post 2 or a negative post 2, but the polarity of the post 2 disposed on a single cover plate assembly needs to be the same.
In the embodiment of the present invention, the connection between the cover plate 1 and the terminal post 2 can be sintered and connected by a metal-glass sealing sintering technique or a metal-ceramic sealing sintering technique, so as to ensure the connection and insulation between the terminal post 2 and the cover plate 1. The connecting piece 3 and the pole 2 can be connected by welding, riveting, sintering and other modes.
The embodiment of the utility model provides an in, still include insulating part 4, insulating part 4 sets up between connecting piece 3 and apron 1, corresponds utmost point post 2 on the insulating part 4 and is provided with the through-hole that supplies utmost point post 2 to pass. Through setting up insulating part 4, can be with connecting piece 3 and apron 1 insulating spaced apart, avoid the short circuit problem that probably causes after connecting piece 3 and apron 1 contact.
The embodiment of the utility model provides an in, still provide a battery, it includes electric core, casing and foretell apron subassembly, and electric core sets up in the inside of casing, and the apron subassembly is fixed to be set up on the casing with electric core sealed in the inside of casing, and connecting piece 3 of apron subassembly is connected with the utmost point ear of electric core.
Adopt the battery of foretell apron subassembly, because two utmost point posts 2 are no less than in the setting on apron 1, when the battery discharges, the electric current is dispersed by a plurality of utmost point posts 2 and is exported from a plurality of utmost point posts 2 outwards, the electric current size that single utmost point post 2 passes through has been reduced, thereby the effectual calorific capacity that reduces single tie point, make the heat dispersion to each utmost point post 2 go up to the battery casing transmission, make the heat can be rapid be transmitted to the battery casing on form the heat exchange with external environment, improve the radiating efficiency and reduce the battery temperature, reduce the safety risk of battery when discharging under extreme condition. And secondly, the cover plate assembly is provided with a connecting piece 3, so that the connection between the battery cell and the cover plate assembly can be conveniently realized.
In an alternative scheme, a current collecting piece is arranged in the shell corresponding to a pole lug of the battery cell, the current collecting piece is connected with the pole lug, and the current collecting piece is connected with the connecting piece 3. When the inside of electric core is provided with a plurality of utmost point ears, or make up a plurality of electric cores in a battery the inside, under this condition, the inside of battery has a plurality of utmost point ears, then when being connected with utmost point post 2 on the apron subassembly, need be connected utmost point ear and utmost point post 2 respectively, when being connected with the apron subassembly, will rise to the welding degree of difficulty of utmost point ear, cause the rosin joint even to become invalid easily. Therefore, correspond utmost point ear in the inside of casing and set up the mass flow body earlier and fix utmost point ear to the mass flow body on, then the rethread mass flow body is connected with cover plate assembly, can guarantee being connected and the reliability between electric core and the utmost point post 2 to the operation degree of difficulty when effectual reduction electric core is connected with utmost point post 2.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A cover plate assembly comprises a cover plate and poles fixedly arranged on the cover plate, and is characterized in that the number of the poles is not less than two; the cover plate assembly further comprises a connecting piece, the connecting piece is made of a conductive material, the connecting piece is arranged on one side, close to the battery cell, of the cover plate, or the connecting pieces are arranged on two sides of the cover plate, and the connecting pieces are electrically connected with all the pole columns.
2. The cover plate assembly of claim 1, wherein the connector comprises a first connector and a second connector, the first connector being located on a side of the cover plate that is proximal to the cell, and the second connector being located on a side of the cover plate that is distal to the cell.
3. The cover plate assembly according to claim 1, wherein the connecting member includes a connecting portion and a current collecting portion, the current collecting portion is connected to the terminal, the connecting portion is fixedly disposed on the current collecting portion, and an end of the connecting portion, which is away from the current collecting portion, is connected to a tab of the battery cell.
4. The cover plate assembly according to claim 3, wherein at least two convex portions are arranged on the current collecting portion, the convex portions correspond to the poles one to one, and the convex portions are connected with the poles.
5. The cover plate assembly of claim 4, wherein the connecting portion, the current collecting portion, and the protrusion are of an integrally formed structure.
6. The cover plate assembly of claim 1, wherein end surfaces of the terminals close to one end of the battery cell are located on the same plane, and end surfaces of the terminals far from one end of the battery cell are located on the same plane.
7. The cover plate assembly of claim 1, wherein an end of the pole away from the cell is flush with a side of the cover plate away from the cell; or the like, or, alternatively,
one end, far away from the battery cell, of the pole protrudes out of one side face, far away from the battery cell, of the cover plate.
8. The cover plate assembly according to claim 1, further comprising an insulating member disposed between the connecting member and the cover plate, wherein a through hole for the pole to pass through is disposed on the insulating member corresponding to the pole.
9. A battery comprising a cell, a housing, and the cover plate assembly of any one of claims 1 to 8, wherein the cell is disposed inside the housing, the cover plate assembly is fixedly disposed on the housing to seal the cell inside the housing, and the connecting member of the cover plate assembly is connected to the tab of the cell.
10. The battery of claim 9, wherein a current collecting piece is arranged inside the shell corresponding to a tab of the battery core, the current collecting piece is connected with the tab, and the current collecting piece is connected with the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020313867.3U CN211605205U (en) | 2020-03-13 | 2020-03-13 | Cover plate assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020313867.3U CN211605205U (en) | 2020-03-13 | 2020-03-13 | Cover plate assembly and battery |
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| Publication Number | Publication Date |
|---|---|
| CN211605205U true CN211605205U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020313867.3U Active CN211605205U (en) | 2020-03-13 | 2020-03-13 | Cover plate assembly and battery |
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| CN (1) | CN211605205U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361466A (en) * | 2022-01-12 | 2022-04-15 | 江苏正力新能电池技术有限公司 | Cylindrical battery and energy storage device |
| CN114865165A (en) * | 2022-05-24 | 2022-08-05 | 厦门海辰新能源科技有限公司 | Electrical connection assembly |
-
2020
- 2020-03-13 CN CN202020313867.3U patent/CN211605205U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361466A (en) * | 2022-01-12 | 2022-04-15 | 江苏正力新能电池技术有限公司 | Cylindrical battery and energy storage device |
| CN114361466B (en) * | 2022-01-12 | 2024-05-17 | 江苏正力新能电池技术有限公司 | Cylindrical battery and energy storage device |
| CN114865165A (en) * | 2022-05-24 | 2022-08-05 | 厦门海辰新能源科技有限公司 | Electrical connection assembly |
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