CN116914384B - Anti-tilting structure and lithium battery - Google Patents
Anti-tilting structure and lithium battery Download PDFInfo
- Publication number
- CN116914384B CN116914384B CN202311152573.1A CN202311152573A CN116914384B CN 116914384 B CN116914384 B CN 116914384B CN 202311152573 A CN202311152573 A CN 202311152573A CN 116914384 B CN116914384 B CN 116914384B
- Authority
- CN
- China
- Prior art keywords
- buffer
- pole
- buffer groove
- isolation sheet
- groove
- 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.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 67
- 125000006850 spacer group Chemical group 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 28
- 239000000463 material Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
-
- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to the field of lithium batteries, in particular to an anti-tilting structure and a lithium battery. The technical problem that a pole post subjected to riveting in the prior art is easy to cause the isolation ring to warp is solved.
Description
Technical Field
The invention relates to the field of lithium batteries, in particular to an anti-tilting structure and a lithium battery.
Background
As shown in fig. 1, the terminal 100 of the lithium battery is riveted to the case, the riveted end of the terminal 100 is inserted into the battery case 200, and then the riveted end is unfolded in the battery case 200 to complete the riveting, wherein a spacer 300 is disposed between the riveted end and the inner wall of the battery case 200 to play a role of insulation and isolation, thereby preventing a current loop from being formed between the terminal 100 and the battery case 200. However, as shown in fig. 2, the riveted lithium battery is liable to have a situation in which the separator 300 is tilted, seriously affecting the assembly of the lithium battery winding core and the welding of the lithium battery post 100.
Disclosure of Invention
In order to solve the technical problem that a pole column subjected to riveting in the prior art is easy to cause the isolation ring to warp, the application provides an anti-warp structure and a lithium battery, and solves the technical problem.
The technical scheme adopted for solving the technical problems is as follows:
An aspect of the present invention provides an anti-tilting structure for a separator pressed on an inner wall of a battery case by a post, including: the buffer step protrudes from the inner ring of the spacer towards the flanging of the riveting end of the pole along the axial direction of the pole, and is pressed by the flanging of the riveting end of the pole; and the first buffer groove is formed in the isolation sheet and is positioned at the periphery of the buffer step, and meanwhile, the opening end of the first buffer groove faces to the inner wall of the battery shell.
Further, a second buffer groove is further formed in the isolation sheet, the second buffer groove is configured at the periphery of the first buffer groove, and the opening end of the second buffer groove faces away from the inner wall of the battery shell.
Further, from the inner ring to the outer ring of the spacer, at least two of the first buffer grooves and at least one of the second buffer grooves are formed, and the first buffer grooves and the second buffer grooves are alternately arranged.
Further, from the inner ring to the outer ring of the spacer, the groove widths of the adjacent first buffer groove and second buffer groove decrease in order.
Further, the bent parts of the flanges of the riveting ends of the isolating sheets and the polar posts are in round chamfer matching.
Further, the pole riveting device further comprises a pre-pressing jig, and the pre-pressing jig is pressed on the outermost periphery of the isolation sheet in the flanging process of the pole riveting end.
Further, the pressing surface of the buffer step pressed by the flanging of the pole riveting end is matched with the size of the flanging.
Further, the pressing surface of the buffer step pressed by the flanging of the pole riveting end is slightly larger than the size of the flanging.
The invention also provides a lithium battery comprising the anti-tilting structure.
Based on the technical scheme, the invention has the following technical effects:
The anti-tilting structure of the invention has the advantages that the inner ring of the isolation sheet protrudes towards the flanging of the riveting end of the pole column along the axial direction of the pole column to form the buffer step, the buffer step is pressed by the flanging of the riveting end of the pole column, and the buffer step is thicker than the thickness of the body of the isolation sheet, so that the pressure value born by the buffer step is larger, the axial pressure generated by the flanging of the riveting end of the pole column on the inner ring of the isolation sheet can be relieved, the concentration of the internal stress of the isolation sheet is reduced, the bending degree generated by the boundary between the part compressed by the flanging and the part not compressed on the isolation sheet is reduced, the tilting of the isolation sheet can be reduced, meanwhile, the opening end of the isolation sheet is arranged at the periphery of the buffer step towards the inner wall of the battery shell, the first buffer groove can relieve the stress transmitted from the inner ring of the isolation sheet, on the one hand, the material of the buffer sheet can move in the first buffer groove to unload the first buffer groove when being extruded, on the other hand, the first buffer groove receives the stress firstly towards the opening end, the opening end of the isolation sheet is bent towards the first buffer groove, the bending part of the isolation sheet is more easily influenced by the bending part of the isolation sheet, and the whole stress is more easily counteracted from the bending part of the first buffer groove, and the whole buffer groove is more influenced by bending part, and stress is more easily, and stress is more influenced by bending part of the isolation sheet, and stress is more than the whole buffer part, and stress is more than bending part, and stress is relieved, the buffer step and the first buffer groove of the anti-tilting structure are mutually in linkage fit to prevent the spacer from tilting, the thickness of the buffer step is thicker than that of the spacer body, when the buffer step is pressed by the flanging of the pole riveting end, the part of the spacer material at the buffer step is a process of firstly flattening axially and generating radial feeding, and deformation is generated after the radial feeding, the first buffer groove just accommodates the radial feeding at the buffer step, so that the stress brought in the feeding process is relieved, and the bending and tilting of the spacer are reduced;
The isolation sheet is also provided with a second buffer groove, the second buffer groove is arranged on the periphery of the first buffer groove, and the opening end of the second buffer groove is back to the inner wall of the battery shell. In this way, the stress generated by pole riveting can be reduced at the second buffer groove after being reduced at the first buffer groove, so that bending and warping of the isolation sheet are further reduced. The opposite meaning of the opening position of the second buffer groove and the first buffer groove is that on one hand, the direction of the bending trend of the part of the isolation sheet, which is stressed by the first buffer groove and the second buffer groove, is different, so that the tilting direction of the isolation sheet is corrected, and on the other hand, if the isolation sheet needs to be flattened for the second time, the bending trend of the isolation sheet in different directions is more beneficial to the flattening for the second time;
The bending part of the flange of the riveting end of the pole is in round chamfer fit with the isolation sheet of the anti-tilting structure. Therefore, during riveting, the extrusion amount of the flanging at the riveting end of the pole to the bending part of the isolation sheet is reduced, and the turnover process of the flanging at the riveting end of the pole is smoother, so that the acting force of the flanging on the isolation sheet is reduced, and the deformation of the isolation sheet is reduced;
The tilting prevention structure further comprises the pre-pressing jig, and the pre-pressing jig is pressed on the outermost periphery of the isolation sheet in the flanging process of the riveting end of the pole, so that the bending force generated on the isolation sheet during pole riveting can be counteracted by means of the acting force of the pre-pressing jig on the isolation sheet, and tilting of the isolation sheet is effectively prevented.
Drawings
FIG. 1 is a schematic illustration of a prior art pole staking process;
FIG. 2 is a schematic diagram of a prior art pole after riveting is completed;
in the prior art: 100-pole; 200-battery housing; 300-spacer ring.
FIG. 3 is a schematic view of the anti-warp structure of the present invention during pole riveting;
FIG. 4 is a schematic view of the anti-warp structure of the present invention after the pole is riveted;
Fig. 5 is a partial enlarged view of a portion a in fig. 4.
In the invention, the following components are added: 1-pole, 11-flanging; 2-a battery case; 3-spacer, 31-buffer step, 32-first buffer groove, 33-second buffer groove and 34-round chamfer; 4-pre-pressing jig.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the riveting process of the pole 1, the flange 11 of the riveting end of the pole 1 acts on the inner ring of the isolation sheet 3, the flange 11 is pressed on the inner ring of the isolation sheet 3 in a strong manner, so that the boundary between the part of the isolation sheet 3 compressed by the flange 11 and the part not compressed by the flange 11 is bent, and finally the isolation sheet 3 is tilted. Therefore, it is necessary to provide an anti-lifting structure to solve the technical problem of lifting the spacer 3.
As shown in fig. 3 to 5, the present invention provides an anti-tilting structure for a separator 3 pressed by a pole 1 against an inner wall of a battery case 2, comprising a buffer step 31 and a first buffer groove 32, the buffer step 31 being protruded from an inner ring of the separator 3 toward a flange 11 of a caulking end of the pole 1 in an axial direction of the pole 1 and being pressed by the flange 11 of the caulking end of the pole 1, the first buffer groove 32 being formed on the separator 3 and located at an outer periphery of the buffer step 31, and an opening end of the first buffer groove 32 being directed toward the inner wall of the battery case 2.
According to the anti-tilting structure of the invention, the inner ring of the isolation sheet 3 protrudes towards the flange 11 of the riveting end of the pole 1 along the axial direction of the pole 1 to form the buffer step 31, the buffer step 31 is pressed by the flange 11 of the riveting end of the pole 1, and the buffer step 31 is thicker than the thickness of the body of the isolation sheet 3, so that the pressure value born by the buffer step 31 is larger, the axial pressure of the flange 11 of the riveting end of the pole 1 to the inner ring of the isolation sheet 3 can be relieved, the concentration of the internal stress of the isolation sheet 3 is reduced, the bending degree generated at the boundary between the part compressed by the flange 11 and the part not compressed on the isolation sheet 3 is reduced, namely the tilting of the isolation sheet 3 can be reduced, meanwhile, the first buffer groove 32 with the opening end towards the inner wall of the battery shell 2 is arranged at the periphery of the buffer step 31 on the isolation sheet 3, the first buffer groove 32 can relieve the stress transferred from the pressed part of the inner ring of the isolation sheet 3, on one hand, the material of the isolation sheet 3 can move in the first buffer groove 32 to discharge force when being pressed, on the other hand, the first buffer groove 32 is stressed and is bent towards the open end firstly, the open end of the first buffer groove 32 is bent towards the battery shell 2, namely, the bending direction of the isolation sheet 3 at the first buffer groove 32 is opposite to the bending direction of the whole isolation sheet 3, the bending stress of the isolation sheet 3 at the first buffer groove 32 counteracts part of the bending stress of the whole isolation sheet 3, thus relieving the stress transferred from the inner ring of the isolation sheet 3 from two aspects, reducing the influence of the stress on the outer ring of the isolation sheet 3, and the first buffer groove 32 has the further advantage that even if the bending and warping are generated at the first buffer groove 32, the part of the isolation sheet 3 at the first buffer groove 32 is pressed and smoothed later than the part without the first buffer groove 32 on the isolation sheet 3, and more importantly, the buffer step 31 and the first buffer groove 32 of the anti-tilting structure are mutually matched to prevent the isolation sheet 3 from tilting, the thickness of the buffer step 31 is thicker than the isolation sheet 3 body, thus, when the buffer step 31 is pressed by the turnup 11 of the riveting end of the pole 1, the part of the isolation sheet 3 material at the buffer step 31 is firstly flattened axially and generates radial running materials, deformation is generated after the radial running materials, the first buffer groove 32 just accommodates the radial running materials at the buffer step 31, relieves stress brought by the running materials, reduces bending and tilting of the isolation sheet 3, and conversely, if the buffer step 31 is not provided with the buffer step 31, only the inner ring of the isolation sheet 3 is pressed lower than the whole plane, the buffer step 32 has already generated, the buffer unloading process of the first buffer groove 32 is lagging, the tilting effect is influenced, the bending and bending resistance of the isolation sheet 3 is not provided with the buffer step 31, and the problem that the buffer step 31 is not required to be completely bent and the buffer step 3 is better is completely solved, and the problem that the buffer step 31 is not bent and the buffer step 31 is completely bent after the buffer step 3 is completely.
It is to be noted that the open end of the first buffer groove 32 must be directed toward the inner wall of the battery case 2, and if the open end of the first buffer groove 32 is directed away from the inner wall of the battery case 2, the separator 3 may be caused to warp more severely.
Since the buffer step 31 is too large to have a corresponding effect, and too small to affect the riveting reliability, in order to make the buffer step 31 have a better effect, the pressing surface of the buffer step 31 pressed by the flange 11 at the riveting end of the pole 1 is adapted to the size of the flange 11. In one embodiment of the present invention, the pressing surface of the buffer step 31 pressed by the flange 11 at the riveted end of the pole 1 is slightly larger than the size of the flange 11.
Further, a second buffer groove 33 is formed on the separator 3, the second buffer groove 33 is disposed at the periphery of the first buffer groove 32, and the open end of the second buffer groove 33 faces away from the inner wall of the battery case 2. In this way, the stress generated by the riveting of the pole 1 can be relieved and weakened at the second buffer groove 33 after being relieved at the first buffer groove 32, thereby further reducing the bending and warping of the spacer 3. The opposite meaning of the opening position of the second buffer slot 33 and the first buffer slot 32 is that, on one hand, the direction of the bending trend of the part of the spacer 3 stressed in the first buffer slot 32 and the part of the second buffer slot 33 are different, so as to correct the tilting direction of the spacer 3, and on the other hand, if the spacer 3 needs to be flattened for the second time, the bending trend in different directions is more beneficial to the flattening for the second time.
Further, from the inner ring to the outer ring of the spacer 3, at least two first buffer grooves 32 and at least one second buffer groove 33 are formed, and the first buffer grooves 32 and the second buffer grooves 33 are alternately arranged. This arrangement corresponds to the gradual arrangement of the buffer grooves with opposite opening directions along the radius of the spacer 3 outward, and the stepped relief of the stress caused by the caulking of the pole piece 1 is performed.
In one embodiment of the present invention, the groove widths of the adjacent first buffer groove 32 and second buffer groove 33 decrease in order from the inner ring to the outer ring of the spacer 3, and in one embodiment, the width of the second buffer groove 33 is half the groove width of the first buffer groove 32 of the adjacent inner ring. The stress of the spacer 3 is started from the inner ring riveted by the pole 1 and is buffered once by the buffer groove in the process of expanding the inner ring to the outer ring, and the stress is gradually reduced, so that the setting of the groove width of the buffer groove at the outer ring smaller than the buffer groove of the adjacent inner ring is more beneficial to improving the overall strength of the spacer 3.
In one embodiment of the invention, the bent part of the flange 11 of the riveting end of the pole 1 and the spacer 3 are matched by a round chamfer 34. Therefore, when in riveting, the extrusion amount of the flange 11 of the riveting end of the pole 1 to the bending part of the isolation sheet 3 can be reduced, and the folding process of the flange 11 of the riveting end of the pole 1 is smoother, so that the acting force of the flange 11 to the isolation sheet 3 is reduced, and the deformation of the isolation sheet 3 is reduced.
In a specific embodiment of the present invention, the present invention further includes a pre-pressing jig 4, where the pre-pressing jig 4 is pressed on the outermost periphery of the spacer 3 during the flanging 11 of the riveted end of the pole 1. Therefore, the acting force of the pre-pressing jig 4 on the isolation sheet 3 can be used for counteracting the bending force generated on the isolation sheet 3 during riveting of the pole 1, so that the isolation sheet 3 is effectively prevented from tilting.
The invention also provides a lithium battery comprising the anti-tilting structure.
It should be understood that the above-described specific embodiments are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications which extend from the spirit of the present invention are within the scope of the present invention.
Claims (9)
1. An anti-tilting structure for a spacer (3) pressed by a pole (1) against the inner wall of a battery case (2), comprising:
The buffer step (31) protrudes from the inner ring of the isolation sheet (3) towards the flanging (11) of the riveting end of the pole (1) along the axial direction of the pole (1), and is pressed by the flanging (11) of the riveting end of the pole (1);
and a first buffer groove (32), wherein the first buffer groove (32) is formed on the isolation sheet (3) and positioned at the periphery of the buffer step (31), and meanwhile, the opening end of the first buffer groove (32) faces the inner wall of the battery shell (2).
2. The warpage preventing structure according to claim 1, wherein the spacer (3) is further formed with a second buffer groove (33), the second buffer groove (33) is disposed at the periphery of the first buffer groove (32), and an opening end of the second buffer groove (33) faces away from an inner wall of the battery case (2).
3. The warp-lifting prevention structure according to claim 2, characterized in that at least two of the first buffer grooves (32) and at least one of the second buffer grooves (33) are formed from the inner ring to the outer ring of the spacer (3), and the first buffer grooves (32) and the second buffer grooves (33) are alternately arranged.
4. A lifting prevention structure according to claim 3, characterized in that the groove widths of the adjacent first buffer groove (32) and second buffer groove (33) decrease in sequence from the inner ring to the outer ring of the spacer (3).
5. The anti-tilting structure according to claim 1, wherein the bent part of the flange (11) of the riveting end of the pole (1) and the spacer (3) are matched through a round chamfer (34).
6. The warping prevention structure according to claim 1, further comprising a pre-pressing jig (4), wherein the pre-pressing jig (4) is pressed on the outermost periphery of the spacer (3) in the flanging (11) process of the riveting end of the pole (1).
7. The tilting prevention structure according to claim 1, wherein a press surface of the buffer step (31) pressed by the flange (11) of the riveted end of the pole (1) is adapted to the size of the flange (11).
8. The tilting prevention structure according to claim 7, wherein a press surface of the buffer step (31) pressed by the flange (11) of the riveted end of the pole (1) is slightly larger than the flange (11).
9. A lithium battery comprising the anti-lifting structure according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311152573.1A CN116914384B (en) | 2023-09-08 | 2023-09-08 | Anti-tilting structure and lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311152573.1A CN116914384B (en) | 2023-09-08 | 2023-09-08 | Anti-tilting structure and lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116914384A CN116914384A (en) | 2023-10-20 |
| CN116914384B true CN116914384B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311152573.1A Active CN116914384B (en) | 2023-09-08 | 2023-09-08 | Anti-tilting structure and lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116914384B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452257A (en) * | 2002-04-15 | 2003-10-29 | 三星Sdi株式会社 | Storage battery with enhanced anticreeping power |
| CN202549944U (en) * | 2012-04-25 | 2012-11-21 | 王文林 | Insulated seal plastic structure of lithium battery cover plate |
| CN204464331U (en) * | 2015-03-27 | 2015-07-08 | 凤凰新能源(惠州)有限公司 | A kind of battery cover board assembly and battery |
| CN207441768U (en) * | 2016-12-02 | 2018-06-01 | 宁德时代新能源科技股份有限公司 | For the second insulating part, cap structure, power battery and the automobile of power battery |
| CN207690845U (en) * | 2018-01-18 | 2018-08-03 | 宁德时代新能源科技股份有限公司 | Secondary cell cap assembly, secondary cell and automobile |
| CN111769249A (en) * | 2020-07-08 | 2020-10-13 | 江苏塔菲尔新能源科技股份有限公司 | Power battery is with plastic part, top cap assembly structure down and power battery |
| CN218887334U (en) * | 2022-10-19 | 2023-04-18 | 无锡市金杨新材料股份有限公司 | Battery case assembly |
| CN219067011U (en) * | 2022-11-25 | 2023-05-23 | 蜂巢能源科技股份有限公司 | Power battery and shell assembly and energy storage device thereof |
| CN116391299A (en) * | 2022-08-04 | 2023-07-04 | 宁德新能源科技有限公司 | Housing, electrochemical device, method for manufacturing electrochemical device, and electronic device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450136B (en) * | 2016-11-15 | 2020-02-14 | 宁德时代新能源科技股份有限公司 | Secondary battery and battery module |
| CN215816073U (en) * | 2021-08-17 | 2022-02-11 | 厦门海辰新能源科技有限公司 | Top cover assembly of battery core, battery core and power battery |
-
2023
- 2023-09-08 CN CN202311152573.1A patent/CN116914384B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452257A (en) * | 2002-04-15 | 2003-10-29 | 三星Sdi株式会社 | Storage battery with enhanced anticreeping power |
| CN202549944U (en) * | 2012-04-25 | 2012-11-21 | 王文林 | Insulated seal plastic structure of lithium battery cover plate |
| CN204464331U (en) * | 2015-03-27 | 2015-07-08 | 凤凰新能源(惠州)有限公司 | A kind of battery cover board assembly and battery |
| CN207441768U (en) * | 2016-12-02 | 2018-06-01 | 宁德时代新能源科技股份有限公司 | For the second insulating part, cap structure, power battery and the automobile of power battery |
| CN207690845U (en) * | 2018-01-18 | 2018-08-03 | 宁德时代新能源科技股份有限公司 | Secondary cell cap assembly, secondary cell and automobile |
| CN111769249A (en) * | 2020-07-08 | 2020-10-13 | 江苏塔菲尔新能源科技股份有限公司 | Power battery is with plastic part, top cap assembly structure down and power battery |
| CN116391299A (en) * | 2022-08-04 | 2023-07-04 | 宁德新能源科技有限公司 | Housing, electrochemical device, method for manufacturing electrochemical device, and electronic device |
| CN218887334U (en) * | 2022-10-19 | 2023-04-18 | 无锡市金杨新材料股份有限公司 | Battery case assembly |
| CN219067011U (en) * | 2022-11-25 | 2023-05-23 | 蜂巢能源科技股份有限公司 | Power battery and shell assembly and energy storage device thereof |
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| Publication number | Publication date |
|---|---|
| CN116914384A (en) | 2023-10-20 |
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