CN219626707U - Battery core - Google Patents
Battery core Download PDFInfo
- Publication number
- CN219626707U CN219626707U CN202320424068.7U CN202320424068U CN219626707U CN 219626707 U CN219626707 U CN 219626707U CN 202320424068 U CN202320424068 U CN 202320424068U CN 219626707 U CN219626707 U CN 219626707U
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- Prior art keywords
- sol
- side edge
- edge
- battery cell
- arc
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 53
- 210000004027 cell Anatomy 0.000 claims abstract description 46
- 238000004806 packaging method and process Methods 0.000 claims abstract description 29
- 210000005056 cell body Anatomy 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 29
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000002985 plastic film Substances 0.000 description 6
- 229920006255 plastic film Polymers 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000012943 hotmelt Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000002356 single layer Substances 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- 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)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a battery cell, which comprises a battery cell body and a packaging body for packaging the battery cell body; the packaging body comprises a sol layer for packaging the battery cell body; the packaging body is provided with a side edge, a first edge and a second edge which are oppositely arranged; a first sol is formed at an included angle of the sol layer, which corresponds to the side edge sealing and the first edge; a second sol is formed at the part of the sol layer corresponding to the included angle between the side edge sealing and the second edge; the side edge of the first sol, which is close to the battery cell body, is a first arc line, and/or the side edge of the second sol, which is close to the battery cell body, is a second arc line. According to the battery cell, the effect of outward diffusion of the sol at the top corner formed by the side edge sealing and the top edge and the effect of outward diffusion of the sol at the bottom corner formed by the side edge sealing and the bottom edge are achieved, so that the seal strength is increased, the risk that the positions at the top corner and the bottom corner are extremely easy to break when the battery cell generates gas, collides or falls is effectively avoided, the potential failure source of battery leakage is eliminated, the performance of the battery cell is stable, and the safety is high.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to an electric core.
Background
The lithium ion battery is widely applied to daily life of people, so the safety performance of the lithium ion battery is an absolute first assessment index, the winding core or the stacked core of the soft package lithium battery is generally packaged by an aluminum plastic film, and whether the packaging of the aluminum plastic film is reliable or not is related to the safety of the whole battery core.
Referring to fig. 1, at present, the lithium ion battery package adopts a sealing head heat sealing mode, the shape of the sol layer of the sealing body is the shape of the side sealing edge, the sol area of the included angle area between the side sealing edge and the top edge is not specially treated, the bonding strength is not large enough, and when the battery cell generates gas, collides or falls, the position of the intersecting area is extremely easy to break, and the position becomes a potential failure source of battery leakage, so that the battery cell fails, and the safety problem is caused.
Disclosure of Invention
In view of this, the present utility model provides a battery cell.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a battery cell comprises a battery cell body and a packaging body for packaging the battery cell body;
the packaging body comprises a sol layer for packaging the battery cell body;
the packaging body is provided with a side edge, and a first edge and a second edge which are oppositely arranged; it is characterized in that the method comprises the steps of,
a first sol is formed at the part of the sol layer corresponding to the included angle between the side edge sealing and the first edge;
a second sol is formed at the part of the sol layer corresponding to the included angle between the side edge sealing and the second edge;
the side edge of the first sol, which is close to the battery cell body, is a first arc line, and/or
The side edge of the second sol, which is close to the battery cell body, is a second arc line.
Optionally, in the above-mentioned battery cell,
the first arc line and the side edge sealing have a first intersection point;
the first arc has a second intersection with the first edge.
Optionally, in the above-mentioned battery cell,
the second arc line and the side edge sealing have a third intersection point;
the second arc has a fourth intersection with the second edge.
Optionally, in the above-mentioned battery cell,
the intersection of the side edge seal and the first edge is a first vertex 103;
the first arc has a bulge adjacent to the first vertex 103.
Optionally, in the above-mentioned battery cell,
the intersection of the side edge seal and the second edge is a second vertex 104;
the projection of the second arc is proximate the second vertex 104.
Optionally, in the above-mentioned battery cell,
the distance between the first intersection point and the first vertex 103 is 0.5mm to 10mm; and/or
The second intersection point is spaced from the first vertex 103 by a distance of 0.5mm to 10mm.
Optionally, in the above-mentioned battery cell,
the third intersection point is at a distance of 0.5mm to 10mm from the second vertex 104; and/or
The fourth intersection point is spaced from the second vertex 104 by a distance of 0.5mm to 10mm.
Optionally, in the above-mentioned battery cell,
the range of the arc angle of the first arc line is 0-90 degrees; and/or
The range of the arc radius of the first arc line is 2mm to 20mm; and/or
The range of the arc angle of the second arc line is 0-90 degrees; and/or
The range of the arc radius of the second arc line is 2mm to 20mm.
Optionally, in the above battery cell, the first sol and the second sol are symmetrically disposed about a central axis of the side edge seal.
Optionally, in the above-mentioned battery cell,
the area where the sol layer is located comprises an integrally formed area where the side edge seal is located, an area where the first sol is located and an area where the second sol is located; and/or the number of the groups of groups,
and along the extending direction of the side edge sealing, the sol width at two ends of the sol layer is larger than that of the middle area of the sol layer.
According to the battery cell provided by the utility model, the packaging body is provided with the first sol at the vertex angle formed by the side edge sealing and the first edge; and/or the packaging body is provided with a second sol at a bottom corner formed by the side edge sealing and the second edge sealing. The arrangement achieves the effect of outward diffusion of the sol at the top angle formed by the side edge sealing and the first edge and/or the effect of outward diffusion of the sol at the bottom angle formed by the side edge sealing and the second edge; and then increased seal intensity, effectively avoided when the electric core produces gas, collision or fall, the very easy cracked risk in position in apex angle department and bottom angle department has eliminated the potential failure source of battery weeping, and electric core performance is stable, and the security is high.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a conventional cell;
FIG. 2 is a schematic diagram of a cell according to the present utility model;
fig. 3 is a schematic view of a heat seal structure and a cell of the present utility model.
In fig. 1-3:
1-side edge sealing, 2-first edge, 3-second edge, 4-top edge sealing and 5-electromagnetic heating coil;
101-first sol, 102-second sol, 103-first vertex, 104-second vertex.
Detailed Description
The utility model provides a battery cell.
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 2, the embodiment of the utility model provides a battery cell, which comprises a battery cell body and a packaging body for packaging the battery cell body; the package body has a side seal 1, a top seal 4 and a first edge 2. The first side 2 is the top side of the package body; the top edge seal 4 is located slightly below the top edge. The included angle formed by the side edge sealing 1 and the top edge is a vertex angle; the sol layer is provided with a first sol 101 at the top corner of the packaging body; the side edge of the first sol 101, which is close to the battery cell body, is a first arc line.
The effect that the sol at the vertex angle formed by the side edge sealing 1 and the top edge is outwards diffused is achieved, the sealing strength of the vertex angle is further improved, the risk that the position at the vertex angle is extremely easy to crack when the battery cell generates gas, collides or falls can be effectively avoided, the potential failure source of battery leakage is eliminated, the performance of the battery cell is stable, and the safety is high. Meanwhile, the arc-shaped side edge of the first sol 101 is quite smooth, so that the edge stress of the first sol 101 is greatly reduced, and the mechanical property is better.
Further, the battery cell also comprises a second side 3; the second side 3 is the bottom side of the package body. The included angle formed by the side edge banding 1 and the bottom edge is the bottom angle; the sol layer is provided with a second sol 102 at the bottom corner of the packaging body; the side of the second sol 102, which is close to the battery cell body, is a second arc line.
The effect that the sol at the bottom corner formed by the side edge sealing 1 and the bottom edge is outwards diffused is achieved, the sealing strength of the bottom corner is further improved, the risk that the position at the bottom corner is extremely easy to crack when the battery cell generates gas, collides or falls can be effectively avoided, the potential failure source of battery leakage is eliminated, the performance of the battery cell is stable, and the safety is high. Meanwhile, the arc-shaped side edge of the second sol 102 is quite smooth, so that the edge stress of the second sol 102 is greatly reduced, and the mechanical property is better.
In some embodiments of the utility model, the first arc has a first intersection with the side seal 1; the first arc has a second intersection with the first edge 2.
The first arc of the first sol 101 forms a closed space with the side edge seal 1 and the first edge 2; by the arrangement, the forming area of the first sol 101 at the top angle is greatly increased, and the packaging strength of the sol layer at the top angle is further effectively increased.
Further, the intersection of the side seal 1 and the top edge is a first vertex 103; the projection of the first arc is adjacent to the first vertex 103. The arrangement ensures the smoothness of the contour line of the first sol 101 at the vertex angle formed by the side edge sealing 1 and the top edge, ensures the area of the first sol 101 not to be too large, occupies too much space and ensures the energy density of the battery.
In some embodiments of the utility model, the side second arc has a third intersection with the side seal 1; the second arc has a fourth intersection with the second side 3.
The second arc of the second sol 102 forms a closed space with the side edge sealing 1 and the second edge 3; as set forth above, the forming area of the second sol 102 at the bottom corner is greatly increased, and thus the packaging strength of the sol layer at the bottom corner is effectively increased.
Further, the intersection of the side edge seal 1 and the bottom edge is a second vertex 104; the projection of the second arc is adjacent to the second vertex 104. The arrangement ensures the smoothness of the contour line of the second sol 102 at the bottom corner surrounded by the side edge seal 1 and the bottom edge, ensures the area of the second sol 102 not to be too large, occupies too much space and ensures the energy density of the battery.
In some embodiments of the present utility model, the first intersection point is a from the first vertex 103, and the value of a ranges from 0.5mm to 10mm; the distance between the second intersection point and the first vertex 103 is b, and the value of b ranges from 0.5mm to 10mm.
As set forth above, the first sol 101 can be ensured to have sufficient adhesive strength; meanwhile, the area of the sol is not too large, so that the occupation of excessive space of the battery core is avoided, and the energy density of the battery is ensured.
In some embodiments of the utility model, the third intersection point is at a distance of 0.5mm to 10mm from the second vertex 104; the fourth intersection point is spaced from the second vertex 104 by a distance of 0.5mm to 10mm.
As set forth above, the second sol 102 can be ensured to have sufficient adhesive strength; meanwhile, the area of the sol is not too large, so that the occupation of excessive space of the battery core is avoided, and the energy density of the battery is ensured.
In certain embodiments of the present utility model, the arc angle of the first arc ranges from 0 ° to 90 °; the range of the arc radius of the first arc line is 2mm to 20mm; the arc angle of the second arc line ranges from 0 degrees to 90 degrees; the arc radius of the first arc ranges from 2mm to 20mm.
As set forth above, the first sol 101 and the second sol 102 can be ensured to have sufficient adhesive strength; meanwhile, the area of the sol is not too large, so that the occupation of excessive space of the battery core is avoided, and the energy density of the battery is ensured.
In certain embodiments of the utility model, the first sol 101 and the second sol 102 are symmetrically arranged about the central axis of the side seal 1. The sol layer is regular in shape, and the packaging strength at the top corner and the bottom corner of the packaging body is ensured to be consistent.
In some embodiments of the present utility model, the area of the sol layer includes the area of the integrally formed side seal 1, the area of the first sol 101, and the area of the second sol 102.
The area where the side seal 1 is located is rectangular.
The first sol 101 and the second sol 102 are simultaneously generated when the side edge sealing 1 is subjected to heat sealing treatment, and are integrally connected with the sol of the rectangular area of the side edge sealing 1; the method simplifies the process of forming the sol layer while ensuring the seal strength at the top angle and the bottom angle of the side seal 1 and the top seal 4.
Further, along the extending direction of the side edge sealing, the sol width at two ends of the sol layer is larger than that of the middle area of the sol layer; that is, the sol width of the sol layer at the top corner of the package body and the sol width of the sol layer at the bottom corner of the package body are both larger than the sol width of the middle area of the sol layer.
Referring to fig. 3, a heat sealing structure is used for performing heat sealing treatment on the side edge sealing of the battery cell; the heat-sealing structure comprises an electromagnetic heating coil 5 and an insulating side sealing head.
Further, the insulating side seal head is made of epoxy resin; the insulating side seal head is provided with two membrane limits, and the size of the insulating side seal head is consistent with that of a conventional side seal metal head.
The packaging body is a flexible packaging aluminum plastic film; the single-layer aluminum plastic film comprises a hot melt resin layer, an aluminum layer and a nylon layer which are sequentially laminated from inside to outside; the side edge sealing 1 comprises a first aluminum-plastic film layer and a second aluminum-plastic film layer which are folded in half. The electromagnetic heating coil 5 generates a variable magnetic field, the aluminum layer generates vortex in the variable magnetic field so as to generate heat, and thus, the hot-melt connection of the two double-folded hot-melt resin layers at the side edge sealing 1 is realized; the formed hot melt joint is the sol layer of the packaging body.
Further, a turnover part is arranged on one side of the side edge sealing 1 far away from the center of the battery cell; when the side edge sealing 1 is subjected to heat sealing treatment through the heat sealing structure, the turnover part is turned upwards, then the side edge sealing 1 is clamped through the insulating side sealing head, and then the electromagnetic heating coil 5 is charged; the heat-sealing treatment time is not more than 5s. In the above operation, the first sol 101 may be formed at the top corner enclosed by the side seal 1 and the top edge, and the second sol 102 may be formed at the bottom corner enclosed by the side seal 1 and the bottom edge. Meanwhile, the contour line of the first sol 101 far away from the first vertex 103 is arc-shaped, and the arc-shaped bulge is close to the first vertex 103; ensuring that the contour line of the second sol 102 far from the second vertex 104 is arc-shaped, and the arc-shaped bulge is close to the second vertex 104; the edge stress of the intersecting area and the bottom corner is greatly reduced, the seal strength is enhanced, the risk that the position of the intersecting area is extremely easy to break when the battery cell generates gas, collides or falls can be effectively avoided, the potential failure source of battery leakage is eliminated, the performance of the battery cell is stable, and the safety is high. By controlling the time of the heat-sealing treatment, the size of the areas of the first sol 101 and the second sol 102 can be controlled.
In some embodiments of the utility model, the electromagnetic heating coil is spaced from the side seal 1 by no more than 5mm during the heat sealing process. The arrangement can ensure that the heat generated by the aluminum layer in the packaging body is large enough, so that the hot melting effect of the hot melting resin layer is ensured.
The components, arrangements, etc. referred to in this disclosure are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the drawings. These components, devices, may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
It should also be noted that in the device of the present utility model, the components may be disassembled and/or reassembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present utility model.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present utility model is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the utility model to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is to be construed as including any modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A battery cell comprises a battery cell body and a packaging body for packaging the battery cell body;
the packaging body comprises a sol layer for packaging the battery cell body;
the packaging body is provided with a side edge (1) and a first edge (2) and a second edge (3) which are oppositely arranged; it is characterized in that the method comprises the steps of,
a first sol (101) is formed at the position of the sol layer, which corresponds to the included angle between the side edge (1) and the first edge (2);
a second sol (102) is formed at the position of the sol layer, which corresponds to the included angle between the side edge (1) and the second edge (3);
the side edge of the first sol (101) close to the battery cell body is a first arc line, and/or
The side edge of the second sol (102) close to the battery cell body is a second arc line.
2. The cell of claim 1, wherein the cell comprises a plurality of conductive traces,
the first arc line and the side edge sealing (1) are provided with a first intersection point;
the first arc has a second intersection with the first edge (2).
3. The cell of claim 1, wherein the cell comprises a plurality of conductive traces,
the second arc line and the side edge sealing (1) are provided with a third intersection point;
the second arc has a fourth intersection with the second edge (3).
4. The cell of claim 2, wherein the cell comprises a plurality of conductive traces,
the intersection of the side edge sealing (1) and the first edge (2) is a first vertex;
the projection of the first arc is proximate the first vertex.
5. The cell of claim 3, wherein the cell,
the intersection of the side edge sealing (1) and the second edge (3) is a second vertex;
the projection of the second arc is proximate to the second vertex.
6. The cell of claim 4, wherein the electrode is electrically connected to the electrode,
the distance between the first intersection point and the first vertex is 0.5mm to 10mm; and/or
The second intersection point is spaced from the first vertex by a distance of 0.5mm to 10mm.
7. The cell of claim 5, wherein the electrode is electrically connected to the electrode,
the distance between the third intersection point and the second vertex is 0.5mm to 10mm; and/or
The fourth intersection point is spaced from the second vertex by a distance of 0.5mm to 10mm.
8. The cell of any one of claims 1-7,
the range of the arc angle of the first arc line is 0-90 degrees; and/or
The range of the arc radius of the first arc line is 2mm to 20mm; and/or
The range of the arc angle of the second arc line is 0-90 degrees; and/or
The range of the arc radius of the second arc line is 2mm to 20mm.
9. The cell according to any of claims 1-7, characterized in that the first sol (101) and the second sol (102) are arranged symmetrically with respect to the centre axis of the side seal (1).
10. The cell of any one of claims 1-7,
the area where the sol layer is located comprises an integrally formed area where the side edge (1) is located, an area where the first sol (101) is located and an area where the second sol (102) is located; and/or the number of the groups of groups,
and along the extending direction of the side edge sealing, the sol width at two ends of the sol layer is larger than that of the middle area of the sol layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/115719 WO2024093482A1 (en) | 2022-10-31 | 2023-08-30 | Battery cell and preparation method therefor, and battery |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222885838 | 2022-10-31 | ||
| CN2022228858386 | 2022-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219626707U true CN219626707U (en) | 2023-09-01 |
Family
ID=87777283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320424068.7U Active CN219626707U (en) | 2022-10-31 | 2023-03-08 | Battery core |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219626707U (en) |
| WO (1) | WO2024093482A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6673488B2 (en) * | 2001-07-23 | 2004-01-06 | Ngk Spark Plug Co., Ltd. | Packaging for polymer electrolytic cell and method of forming same |
| CN203398168U (en) * | 2013-07-09 | 2014-01-15 | 曙鹏科技（深圳）有限公司 | Soft package lithium ion battery |
| CN204011573U (en) * | 2014-06-20 | 2014-12-10 | 东莞新能源科技有限公司 | A kind of packaging system of lithium ion battery |
| CN105514307A (en) * | 2016-01-22 | 2016-04-20 | 宁德新能源科技有限公司 | Lithium-ion battery packaging housing and lithium ion battery comprising same |
| KR20220145911A (en) * | 2020-03-31 | 2022-10-31 | 닝더 엠프렉스 테크놀로지 리미티드 | Battery cell and electrochemical device using same |
| CN217009349U (en) * | 2022-03-10 | 2022-07-19 | 东莞新能德科技有限公司 | Battery cell, battery and electric equipment |
| CN217468540U (en) * | 2022-06-10 | 2022-09-20 | 珠海冠宇电池股份有限公司 | Soft package lithium ion battery and electronic device |
-
2023
- 2023-03-08 CN CN202320424068.7U patent/CN219626707U/en active Active
- 2023-08-30 WO PCT/CN2023/115719 patent/WO2024093482A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024093482A1 (en) | 2024-05-10 |
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