CN119029268B - Battery cell - Google Patents
Battery cell Download PDFInfo
- Publication number
- CN119029268B CN119029268B CN202411525409.5A CN202411525409A CN119029268B CN 119029268 B CN119029268 B CN 119029268B CN 202411525409 A CN202411525409 A CN 202411525409A CN 119029268 B CN119029268 B CN 119029268B
- Authority
- CN
- China
- Prior art keywords
- wall surface
- tab
- battery
- support
- battery cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 210000004027 cell Anatomy 0.000 claims description 31
- 210000005056 cell body Anatomy 0.000 claims description 14
- 230000008093 supporting effect Effects 0.000 abstract description 52
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000011149 active material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery, which comprises a shell, a battery core, a bracket and a supporting piece, wherein the battery core, the bracket and the supporting piece are all positioned in the shell, the battery core comprises a battery core body and a tab, the shell is provided with a first wall surface, the bracket comprises two supporting parts and a bottom plate connected between the two supporting parts, the same side of the bottom plate and the two supporting parts is supported on the first wall surface, in the first direction, the two supporting parts are arranged at intervals and form a tab accommodating cavity therebetween, the tab extends from the battery core body into the tab accommodating cavity, the supporting piece is used for being installed in the tab accommodating cavity, in the first direction, the maximum length of the supporting piece is L1, the distance between the two supporting parts is L2, and L1> L2, so that two sides of the supporting piece after being installed in the tab accommodating cavity respectively press the two supporting parts. The battery has a case having a good deformation resistance.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery.
Background
The shell of the battery is easily deformed due to the influence of the weight of the battery core, the riveting polar column, the liquid injection hole, the liquid injection and the like, and has adverse effects on the service life and the use safety of the battery, especially for batteries with thinner shells, the deformation of the shell is more obvious. In view of this, how to reduce the deformation of the housing is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the application provides a battery, which comprises a shell, a battery core, a bracket and a support piece, wherein the battery core, the bracket and the support piece are all positioned in the shell, the battery core comprises a battery core body and a tab, the bracket is positioned at one side of the battery core, which is provided with the tab, the shell is provided with a first wall surface, the bracket comprises two support parts, one ends of the two support parts are fixed on the first wall surface, the other ends of the two support parts extend in a direction away from the first wall surface, in the first direction, the two support parts are arranged at intervals and form a tab accommodating cavity therebetween, the tab extends from the battery core body into the tab accommodating cavity, the support piece is used for being installed in the tab accommodating cavity, in the first direction, the maximum length of the support piece is L1, the distance between the two support parts is L2, and L1> L2, so that the support piece is installed in the tab accommodating cavity and then pressed by the two support parts respectively.
According to the application, as the maximum length L1 of the support piece in the first direction is larger than the distance L2 between the first support part and the second support part of the bracket, the two sides of the support piece, which are arranged in the lug accommodating cavity between the two support parts, respectively press against the two support parts, so that the two support parts fixed on the first wall surface of the shell can support the first wall surface of the shell more forcefully, thereby improving the deformation resistance of the shell, reducing the deformation of the shell caused by the weight of the battery core, riveting the pole column assembly, forming the liquid injection hole, injecting liquid and the like, prolonging the service life of the battery and improving the use safety of the battery.
Drawings
Fig. 1 is a perspective view of one embodiment of a battery provided by the present application;
FIG. 2 is a plan view of FIG. 1;
FIG. 3 is an exploded view of the housing and cell of FIG. 1;
FIG. 4 is a perspective view of the position of one of the brackets of FIG. 1;
FIG. 5 is an exploded view of a bracket;
FIG. 6 is a plan view of FIG. 4;
FIG. 7 is a plan view of a second support plate;
fig. 8 is a plan view of two legs and a base plate.
The reference numerals are explained as follows:
1a shell, 11 a shell body, 12 a cover plate, 1a first wall surface, 1B a second wall surface, A a liquid injection hole and B pole riveting holes;
2, 21, 22 positive electrode lugs and 23 negative electrode lugs;
the device comprises a3 bracket, a 31 supporting part, a 311 base part, a 312 extending part, a 32 lug accommodating cavity, a 33 bottom plate and a 34 flexible connecting part;
4 support members, 41 first support plates, 42 second support plates;
51 positive electrode post, 52 negative electrode post.
Detailed Description
The application provides a battery. In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 4, the battery includes a case 1, a battery cell 2, a holder 3, a support 4, and a post. The posts include a positive post 51 and a negative post 52.
In the illustrated embodiment, the housing 1 includes a housing body 11 and a cover plate 12, one side of the housing body 11 in the thickness direction is provided with an opening, the cover plate 12 closes the opening of the housing body 11, and the cover plate 12 and the housing body 11 enclose together to form a housing chamber. In another embodiment, two ends of the housing body 11 in the length direction are provided with openings, two cover plates 12 respectively close the openings at the two ends of the housing body 11, and the two cover plates 12 and the housing body 11 are enclosed together to form a containing cavity.
The battery cell 2 is positioned in the housing 1. The battery cell 2 comprises a battery cell body 21 and a tab led out from the battery cell body 21. The tab includes a positive tab 22 and a negative tab 23. In the illustrated embodiment, the positive tab 22 and the negative tab 23 are led out from opposite sides of the cell body 21, respectively. The battery cell body 21 comprises positive pole pieces and negative pole pieces, the positive pole pieces and the negative pole pieces are alternately arranged one by one, and a diaphragm is arranged between the adjacent positive pole pieces and negative pole pieces. In some embodiments, the positive electrode plates and the negative electrode plates are alternately arranged one by one along the thickness direction of the battery, so that the battery core body 21 is in a laminated structure. In some embodiments, the positive pole pieces and the negative pole pieces are wound, and the positive pole pieces and the negative pole pieces are alternately arranged one by one along a direction perpendicular to a winding center line, so that the battery cell body 21 is in a roll structure. The positive electrode plate and the negative electrode plate are similar in structure and comprise a current collector and active material layers coated on two sides of the current collector. The part of the current collector of the positive electrode sheet, which is not coated with the active material, protrudes out of the part coated with the active material to form a positive electrode tab single sheet. The multiple layers of positive electrode tabs are stacked monolithically to form positive electrode tab 22. The part of the current collector of the negative electrode plate, which is not coated with the active material, protrudes out of the part coated with the active material to form a negative electrode tab single piece. The plurality of layers of negative electrode tabs are stacked monolithically to form a negative electrode tab 23.
The positive electrode tab 22 and the positive electrode post 51 are welded to be electrically connected, or the positive electrode tab 22 and the positive electrode post 51 are respectively welded to be electrically connected with the positive electrode adapter. The welding of the negative electrode tab 23 and the negative electrode post 52 realizes the electric connection or the welding of the negative electrode tab 23 and the negative electrode post 52 respectively and the negative electrode adapter realizes the electric connection.
The bracket 3 is located within the housing 1. The support 3 is located at one side of the battery cell 2 where the tab is provided, and when the positive electrode tab 22 and the negative electrode tab 23 are led out from two opposite sides of the battery cell body 21, one support 3 may be provided at each of the two sides of the battery cell body 21. The support 3 is located electric core 2 and is equipped with utmost point ear one side and can carry out spacingly to electric core 2, prevents that electric core 2 is equipped with one side terminal surface of utmost point ear (this terminal surface does not wrap insulating film) and casing 1 mistake and touch and take place the short circuit, and support 3 still has the effect of closing the beam to the utmost point ear simultaneously, prevents that utmost point ear and casing 1 from touching by mistake and taking place the short circuit.
As shown in fig. 4, the bracket 3 includes two branch portions 31, the two branch portions 31 are disposed at intervals in the first direction, a tab accommodating cavity 32 is formed between the two branch portions 31, and the tab extends from the cell body 21 into the tab accommodating cavity 32. The housing 1 has a first wall surface 1a, and one end of each of the two branch portions 31 is fixed to the first wall surface 1a, and the other end extends in a direction away from the first wall surface 1 a. Specifically, the two branches 31 may be fixed directly to the first wall surface 1a, or the two branches 31 may be fixed to one plate fixed to the first wall surface 1a by a post. In the illustrated embodiment, the housing 1 is substantially rectangular, and the housing 1 has two large-area wall surfaces and four small-area wall surfaces, the two large-area wall surfaces being parallel, the two large-area wall surfaces being disposed at intervals in a second direction perpendicular to the first direction, the four small-area wall surfaces being connected between edges of the two large-area wall surfaces. The first wall surface 1a is one of the large-area wall surfaces. In the illustrated embodiment, the cover plate 12 is constructed to form one large-area wall surface, which is the first wall surface 1a, and the side wall of the case body 11 remote from the cover plate 12 is constructed to form another large-area wall surface, which is the second wall surface 1b.
The support 4 is for mounting in the tab receiving cavity 32. As shown in fig. 7, the maximum length of the support 4 in the first direction is L1. As shown in fig. 8, when the support portion 4 is not assembled in the tab receiving cavity 32, the spacing between the two branch portions 31 is L2. After the supporting piece 4 is installed in the lug accommodating cavity 32, two sides of the supporting piece 4 respectively abut against the two supporting parts 31, so that when the two supporting parts 31 receive the thrust from the supporting piece 4 and are far away from each other, and then the thrust is transmitted to the first wall surface 1a, the position of the first wall surface 1a corresponding to the two supporting parts 31 is far away from the battery cell 2, the first wall surface 1a between the two supporting parts 31 has a bending tendency close to the battery cell, and the shell deformation of the part caused by the weight of the battery cell 2 can be counteracted, thereby prolonging the service life of the battery and improving the use safety of the battery.
In some embodiments, the first wall 1a is provided with a liquid injection hole a, and the liquid injection hole a at least partially coincides with the orthographic projection of the support 3 on the first wall 1a, so that the support 3 can effectively support the liquid injection hole a during liquid injection, and prevent the shell from deforming during liquid injection.
In some embodiments, the pole riveting hole B at least partially coincides with the orthographic projection of the bracket 3 on the first wall surface 1a, which is more beneficial to reduce the deformation of the first wall surface 1a during the pole riveting process.
In some embodiments, 1< L1/L2.ltoreq.1.05. The preferable range of L1 is 30.5 mm.ltoreq.L1.ltoreq.205 mm, the specific value of L1 may be 30.5mm、40mm、50mm、60mm、70mm、80mm、90mm、100mm、110mm、120mm、130mm、140mm、150mm、160mm、170mm、180mm、190mm、200mm、205mm, mm, L1 is preferably 71.1mm in the present embodiment, the preferable range of L2 is 30 mm.ltoreq.L1.ltoreq.200 mm, the specific value of L2 may be 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 180mm, 190mm, 200mm, and L2 is preferably 70.6mm in the present embodiment.
When L1/L2 is controlled within the above range, the support 4 can generate enough supporting force on the supporting portion 31, so that the supporting portion 31 has enough support on the first wall surface 1a to prevent the deformation of the housing 1, if L1/L2 is too small, the support 4 cannot generate enough supporting force on the supporting portion 31, so that the deformation of the housing cannot be prevented, and when L1/L2 is too large, the length of the support 4 is too large, after the support is clamped between the two supporting portions 31, the deformation of the supporting portion 31 is too large, so that the inner space of the housing 1 is reduced, and the energy density of the single battery is reduced.
In some embodiments, in the first direction, the length of the cell 2 is L (see FIG. 4), the length of the holder 3 is L3 (see FIG. 4), and 0.9.ltoreq.L3/L.ltoreq.1. If L3/L is too small, the two side areas of the first wall surface 1a in the first direction cannot be reliably supported by the two branch portions 31, resulting in insufficient supporting force of the corresponding case areas of the two branch portions, which is disadvantageous in terms of improvement of the deformation resistance of the first wall surface 1a, and if L3/L is too large, the supporting member 4 and the bracket 3 occupy more internal space of the case 1, resulting in reduction of the arrangement space of the battery cells 2, resulting in small capacity density of the battery, and due to limitation of the case, when the length of the bracket 3 in the first direction is too long, the length of the supporting member 4 is limited, the ratio of L1/L2 is too small, resulting in excessive supporting force, and poor deformation resistance of the first wall surface. L3/L1 is 0.9 or less, and the capacity density of the battery and the deformation resistance of the shell 1 can be both achieved. When L3/L1 is 0.9, L1/L2 may be 1.ltoreq.L1/L2 is 1.02, and when L1/L2 is within this range, the support 4 may not only provide support to the leg 31, but also the support 4 may allow deformation of the leg 31 not to interfere with the housing. Specifically, L may be 80.ltoreq.L.ltoreq.120 mm, L may be 80mm, 90mm, 100mm, 110mm, 120mm, 98mm is preferable in this embodiment, L3 may be 79 mm.ltoreq.L3.ltoreq.119 mm, L3 may be 79mm, 89mm, 99mm, 109mm, 119mm, and L3 is preferable in this embodiment 96.5mm.
In some embodiments, the ratio of the weight (in kg) of the cell 2 to the thickness (in mm) of the first wall 1a is C,4 kg/mm.ltoreq.C.ltoreq.6 kg/mm. The weight of the battery cell 2 is the weight of the battery cell of which the battery cell is not immersed in the electrolyte or the battery is disassembled, and the battery cell is taken out and dried in vacuum for 72 hours at 80 ℃. When the value of C is within the range, the weight of the battery per unit thickness of the first wall surface 1a is within a reasonable range, the first wall surface 1a can exert a larger supporting force on the battery cell, and the deformation is smaller, so that L1/L2 can be controlled within a smaller range, for example, 1.ltoreq.L1/L2.ltoreq.1.02, at the moment, two supporting parts 31 on the first wall surface 1a exert a certain supporting force on the first wall surface 1a under the action of the supporting piece 4, and part of the first wall surface 1a is deformed to strengthen the deformation of the first wall surface 1a caused by the weight of the battery cell or the impact generated when the battery cell shakes, thereby reducing the deformation of the first wall surface 1a of the shell and improving the safety of the battery. For example, in this embodiment, the weight of the battery cell may be 1.793kg, and the thickness of the first wall 1a is 0.3mm.
In some embodiments, the ratio of the weight (in kg) of the cell 2 to the thickness (in mm) of the first wall 1a is C,6 kg/mm.ltoreq.C.ltoreq.10 kg/mm. When the value of C is within this range, it means that the battery weight per unit thickness of the first wall surface 1a is heavy, the supporting force of the first wall surface 1a to the battery cell is limited, and the deformation amount is large, so that L1/L2 can be controlled within a large range, for example, when 1.02.ltoreq.L1/L2.ltoreq.1.05, and when L1/L2 is within this range, the supporting force of the supporting member 4 to the supporting portion 31 is large, the deformation amount of the first wall surface 1a corresponding to the first wall surface 1a between the two supporting portions 31 is large under the action of the supporting portion 31, and the deformation of the first wall surface 1a caused by the battery cell weight can be mostly offset.
In some embodiments, in the second direction, the height of the branch portion 31 is equal to or greater than 0.7 and equal to or less than 1 in proportion to the distance between the first wall surface 1a and the second wall surface 1b corresponding to the branch portion 31. When the value of D is within this range, this means that the height of the leg 31 is relatively large, and in this case, if the first wall surface 1a is slightly deformed, the side of the leg 31 away from the first wall surface 1a is brought into contact with the second wall surface 1b, and at this time, the second wall surface 1b can indirectly support the first wall surface 1a through the leg 31, so that the first wall surface 1a does not continue to be deformed, and thus L1/L2 can be controlled within a small range, for example, 1.ltoreq.L1/L2.ltoreq.1.015. In the illustrated embodiment, both ends of the second wall surface 1b are recessed toward the first wall surface 1a to form a recessed region, the middle of the second wall surface 1b is raised toward a direction away from the first wall surface 1a to form a raised region, the bracket 3 is located between the recessed region and the first wall surface 1a, and the distance between the first wall surface 1a and the second wall surface 1b corresponding to the bracket 3 is the distance between the recessed region of the first wall surface 1a and the second wall surface 1 b.
In some embodiments, the wall thickness of the housing 1 is H.ltoreq.H.ltoreq.0.4 mm, e.g.H may be equal to 0.3mm. When the value of H is within this range, it means that the wall thickness of the housing is relatively thin, and in this case, the housing 1 is more easily deformed, and thus L1/L2 can be controlled within a large range, for example, 1.005.ltoreq.L1/L2.ltoreq.1.035.
In the illustrated embodiment, the leg portion 31 includes a base portion 311 and an extension portion 312, and one side of the base portion 311 is supported by the first wall surface 1a. The extension 312 extends from one end of the base portion 311 away from the first wall surface 1a in a direction away from the first wall surface 1a. The support 4 includes a first support plate 41 and a second support plate 42. The first support plate 41 is mounted between the two base portions 311. The tab in the tab receiving cavity 32 is located between the first support plate 41 and the first wall surface 1a. At least a portion of the second support plate 42 extends from the first support plate 41 in a direction away from the first wall surface 1a. The second leg 42 is located between the two extensions 312. In the illustrated embodiment, the extension portion 312 extends from the area of the end surface of the base portion 311, which is far from the first wall surface 1a, near the battery cell body 21 to the direction far from the first wall surface 1a, so that the extension portion 312 can contact with the end surface of the tab of the battery cell body 21, and play a role in preventing the battery cell body 21 from being damaged. In the illustrated embodiment, the second support plate 42 is located on a side of the first support plate 41 near the cell body 21.
And, the maximum length position of the support 4 is located at the side of the second stay 42 away from the first wall surface 1a. After the support piece 4 is assembled in the lug accommodating cavity 32, the maximum length position of the support piece 4 presses the two extending parts 312, so that the pressing point is larger than the arm of force of the supporting part 31, the supporting part 31 has larger deflection trend due to smaller pressing force, the larger the deflection trend of the supporting part 31 is, the better the supporting effect on the first wall surface 1a is, therefore, the smaller pressing force can enable the supporting part 31 to generate better supporting effect on the first wall surface 1a, and the pressing force is small, so that the stress on the supporting part 31 is small.
In the illustrated embodiment, a buckle X is disposed on a side of the base portion 311 adjacent to the tab accommodating cavity 32, the first support plate 41 is provided with a clamping portion Y, and the first support plate 41 and the base portion 311 are clamped by the clamping portion Y and the buckle X.
In some embodiments, the length of the second support plate 42 in the first direction is gradually reduced in a direction gradually approaching the first wall surface 1a, so that the second support plate 42 can be assembled between the two extension portions 312 relatively easily, and the extension portions 312 are not easily damaged during the assembly process.
In some embodiments, the extending portion 312 and the second supporting plate 42 are not provided, and the maximum length of the supporting member 4 is located at the first supporting plate 41, and after the supporting member 4 is assembled in the tab accommodating cavity 32, the first supporting plate 41 presses the two base portions 311.
In some embodiments, at least a portion of the second support plate 42 extends from the first support plate 41 toward a direction approaching the first wall surface 1a, so that a portion of the second support plate 42 is located on a side of the first support plate 41 approaching the first wall surface 1a, and thus, the tab can be limited to prevent from being torn.
In some embodiments, the bracket 3 further includes a bottom plate 33, where the bottom plate 33 is located between the two support portions 31, and a through hole is provided on the bottom plate 33, where the pole at least partially passes through the through hole and fixes the bottom plate 33 and the first wall 1a together, and the bottom plate 33 may serve to insulate the pole from the housing 1.
In some embodiments, the bracket 3 further comprises a flexible connection 34, the flexible connection 34 being connected between the first support plate 41 and the bottom plate 33. The first support plate 41 can be turned over relative to the bracket 3 by means of the flexible deformation of the flexible connection 34. Before the tab and the post are connected, the first support plate 41 is turned over to the outside of the two base portions 311, and after the tab and the post are connected, the first support plate 41 is turned over to the space between the two base portions 311.
In some embodiments, the support 4 and the bracket 3 are integrally formed, and may be integrally injection molded. The integral injection structure has better integrity and lower molding cost. In the illustrated embodiment, one side of the first support plate 41 of the support member 4 and the flexible connection portion 34 of the bracket 3 are integrally configured, and when the first support plate 41 is turned between the two support portions 31, it is engaged with the two support portions 31.
In some embodiments, the support 4 and the bracket 3 are in a split structure, and the support 4 and the bracket 3 are assembled and fixed. The assembly method is not limited, and for example, screw fastener assembly, clamping assembly, adhesive assembly or hot melt assembly can be adopted.
The foregoing has outlined rather broadly the principles and embodiments of the present application in order that the detailed description of the application may be better understood, and in order that the present application may be better understood. It should be noted that it will be apparent to those skilled in the art that the present application may be modified and practiced without departing from the spirit of the present application.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411525409.5A CN119029268B (en) | 2024-10-30 | 2024-10-30 | Battery cell |
| CN202411892176.2A CN119601742A (en) | 2024-10-30 | 2024-10-30 | A battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411525409.5A CN119029268B (en) | 2024-10-30 | 2024-10-30 | Battery cell |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411892176.2A Division CN119601742A (en) | 2024-10-30 | 2024-10-30 | A battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119029268A CN119029268A (en) | 2024-11-26 |
| CN119029268B true CN119029268B (en) | 2025-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411892176.2A Pending CN119601742A (en) | 2024-10-30 | 2024-10-30 | A battery |
| CN202411525409.5A Active CN119029268B (en) | 2024-10-30 | 2024-10-30 | Battery cell |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411892176.2A Pending CN119601742A (en) | 2024-10-30 | 2024-10-30 | A battery |
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| CN (2) | CN119601742A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115832564A (en) * | 2022-12-28 | 2023-03-21 | 厦门新能达科技有限公司 | Battery pack and electric device |
| CN221353007U (en) * | 2023-10-30 | 2024-07-16 | 比亚迪股份有限公司 | Battery box, battery pack and electric equipment |
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| JP2005158475A (en) * | 2003-11-26 | 2005-06-16 | Matsushita Electric Ind Co Ltd | Square battery and its manufacturing method |
| DE102012221771A1 (en) * | 2012-11-28 | 2014-05-28 | Robert Bosch Gmbh | Battery cell e.g. lithium ion-battery cell of battery used in e.g. motor car, has second housing portion that is operatively connected with new first housing portion without reforming second housing portion |
| KR101794265B1 (en) * | 2013-07-18 | 2017-11-07 | 삼성에스디아이 주식회사 | Battery pack having reinforcement bead |
| DE102019211266B4 (en) * | 2019-07-30 | 2022-01-27 | Volkswagen Aktiengesellschaft | battery case and motor vehicle |
| CN114824620A (en) * | 2021-01-29 | 2022-07-29 | 昆山聚创新能源科技有限公司 | Battery module |
| DE102021202425A1 (en) * | 2021-03-12 | 2022-09-15 | Mahle International Gmbh | Electric battery cell, method and device |
| CN216288861U (en) * | 2021-10-29 | 2022-04-12 | 蜂巢能源科技有限公司 | Battery pack |
| CN218957967U (en) * | 2022-12-09 | 2023-05-02 | 江苏正力新能电池技术有限公司 | Adapter and battery |
| CN116073092A (en) * | 2023-02-21 | 2023-05-05 | 远景动力技术(江苏)有限公司 | Battery cell, battery module and electricity utilization device |
| CN116365174A (en) * | 2023-03-16 | 2023-06-30 | 孚能科技(赣州)股份有限公司 | A battery assembly and assembly process thereof |
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2024
- 2024-10-30 CN CN202411892176.2A patent/CN119601742A/en active Pending
- 2024-10-30 CN CN202411525409.5A patent/CN119029268B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832564A (en) * | 2022-12-28 | 2023-03-21 | 厦门新能达科技有限公司 | Battery pack and electric device |
| CN221353007U (en) * | 2023-10-30 | 2024-07-16 | 比亚迪股份有限公司 | Battery box, battery pack and electric equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119601742A (en) | 2025-03-11 |
| CN119029268A (en) | 2024-11-26 |
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