CN220172249U - Soft package battery with folded edge - Google Patents
Soft package battery with folded edge Download PDFInfo
- Publication number
- CN220172249U CN220172249U CN202223062714.4U CN202223062714U CN220172249U CN 220172249 U CN220172249 U CN 220172249U CN 202223062714 U CN202223062714 U CN 202223062714U CN 220172249 U CN220172249 U CN 220172249U
- Authority
- CN
- China
- Prior art keywords
- main body
- edge
- side seal
- flange
- folded
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 238000005452 bending Methods 0.000 claims abstract 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the technical field of batteries, in particular to a soft package battery with a folded edge, which comprises a main body, a side seal folded edge, an adhesive layer and a tab, wherein the side seal folded edge extends out from the side surface of the main body and is folded and attached to the back of the main body, the tab is arranged on the main body, and the side seal folded edge is parallel to the tab. The side seal edge extends from the side face of the main body, starts to bend at the position connected with the side face of the main body, and is folded and attached to the back of the main body after two 90-degree bending parts are formed by two 90-degree bending, and the bonding layer is located between the side seal edge and the main body. The utility model solves the problems that the side edge of the traditional soft package battery is higher than the battery main body, the folded edge affects the energy density of the battery core and the side sealing effect is not ideal.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a soft package battery with a folded edge.
Background
The soft package lithium ion battery has the characteristics of light weight, large capacity, wide working temperature range, environmental friendliness and the like, and has become an important choice for energy storage of various digital products and electronic products of wearing and moving types. In recent years, consumer electronic products have been rapidly popularized, and as these products are miniaturized, the power supply is smaller, and at the same time, these products require that the power supply be portable and have good charging performance, so that there is a more severe demand on the volume, particularly the thickness, of the soft-pack lithium ion battery as a common power supply.
In the traditional soft package structure of the soft package lithium ion battery, if a non-flanging process is adopted, namely flanging is not carried out, the width of the battery is increased by the seal edge, a large amount of space is wasted in the width direction, the requirement of a thin battery is not met, meanwhile, the side seal effect is not ideal, and the leakage risk exists; if the oblique flanging process is adopted, when the width of the flanging is more than 2 times of the height of the battery, the flanging is possibly more than the battery body, and the flanging mode also increases the width of the battery core, so that the energy density is influenced to a certain extent.
Therefore, there is a need for a soft package battery with sides not higher than the battery body, with the folds not affecting the cell energy density and with an ideal side sealing effect.
Disclosure of Invention
Therefore, the utility model aims to provide a soft package battery with a folded edge, which is used for solving the problems that the side edge of the traditional soft package battery is higher than the battery main body, the folded edge affects the energy density of a battery core, and the side sealing effect is not ideal.
The utility model solves the technical problems by the following technical means:
a pouch cell having a flange, comprising:
a main body;
the side seal edge extends out of the side face of the main body and is folded and attached to the back of the main body;
the pole lug is arranged on the main body, and the side seal folded edge is parallel to the pole lug.
Further, the soft package battery further comprises an adhesive layer, and the adhesive layer is positioned between the side seal edge and the main body.
Further, the side seal flange is provided with two 90-degree bent parts.
Further, the side seal edge is a single side seal edge connected to one side of the main body.
Further, the side seal is a double-sided seal attached to opposite sides of the main body.
Further, the double-sided sealing edge comprises a first side sealing edge and a second side sealing edge, and the first side sealing edge and the second side sealing edge are attached to the same surface of the main body.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the soft package battery with the folded edges, the side edge sealing is formed by folding and attaching the side edge sealing to the back of the battery main body, so that the problem that the folded edges are higher than the battery main body due to an oblique folding process can be avoided, and the battery is further prevented from exceeding the application range;
(2) According to the soft package battery with the folded edges, the side edge sealing is folded and attached to the back of the battery main body, the width of the side edge is not limited by the thickness of the battery any more, the effective packaging width of the side edge can be improved, the packaging strength is improved, and the safety characteristic of the battery is further improved;
(3) According to the soft package battery with the folded edges, the side seal folded edges are fixed on the back of the battery main body by using the adhesive in the adhesive layer, so that the fixing effect of the edge sealing can be effectively improved, the risk of side edge opening is reduced, the consistency of the thickness direction of the battery is improved, and the generation rate of the battery is improved.
Drawings
Fig. 1 is a schematic front view of a pouch cell having a flange according to the present utility model;
FIG. 2 is a schematic side view of a pouch cell having a flange according to the present utility model;
FIG. 3 is a schematic top view of a pouch cell with a flange according to the present utility model;
FIG. 4 is a schematic top view of a pouch cell with unfinished folds according to the utility model;
FIG. 5 is a schematic top view of a soft pack battery of the present utility model without adhesive
Wherein, main part 1, utmost point ear 2, adhesive linkage 3, side seal hem 4.
Detailed Description
The following embodiments of the present utility model are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present utility model from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the utility model, and in order to better illustrate the embodiments of the utility model, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration, and should not be construed as limiting the present utility model, and that the specific meanings used above may be understood by those of ordinary skill in the art according to circumstances.
Example 1
The soft package battery with the hem of this embodiment, including main part 1, side seal hem 4, adhesive linkage 3 and utmost point ear 2, side seal hem 4 stretches out and fold laminating in the back of main part 1 from the side of main part 1, and utmost point ear 2 installs on main part 1, and side seal hem 4 is parallel with utmost point ear 2. The side seal folded edge 4 extends from the side surface of the main body 1, starts to bend at the position connected with the side surface of the main body 1, and is folded and attached to the back of the main body 1 after two 90-degree bends are formed by two 90-degree bends. The adhesive layer 3 is located between the side seal flange 4 and the main body 1 for fixing the side seal flange 4. The side seal edge 4 of the present embodiment is a single side seal edge connected to one side of the main body 1.
Example 2
As shown in fig. 1 to 3, the pouch battery with a flange of the present embodiment includes a main body 1, a side seal flange 4, an adhesive layer 3 and a tab 2, wherein the side seal flange 4 extends from a side surface of the main body 1 and is folded and attached to a back of the main body 1, the tab 2 is mounted on the main body 1, and the side seal flange 4 is parallel to the tab 2. The side seal folded edge 4 extends from the side surface of the main body 1, starts to bend at the position connected with the side surface of the main body 1, and is folded and attached to the back of the main body 1 after two 90-degree bends are formed by two 90-degree bends. The adhesive layer 3 is located between the side seal flange 4 and the main body 1 for fixing the side seal flange 4. The side seal edge 4 of the present embodiment is a double-sided edge seal attached to one side of the main body 1. The double-sided edge sealing comprises a first side edge sealing edge and a second side edge sealing edge, the first side edge sealing edge and the second side edge sealing edge are respectively connected to two opposite sides of the main body 1, and the first side edge sealing edge and the second side edge sealing edge are attached to the same surface of the main body 1.
The edge folding forming process comprises the following steps: after the side edges of the battery are cut, as shown in fig. 5, the first side edge sealing edge and the second side edge sealing edge are respectively positioned on two opposite sides of the main body 1 and are both in a horizontal position with the tab 2; subsequently, a solid adhesive or a liquid adhesive is stuck on the back surface of the main body 1 to form an adhesive layer 3, as shown in fig. 4; the first side seal edge and the second side seal edge are bent along the connection position with the main body 1, the first side seal edge 4 and the second side seal edge are folded on the back surface of the main body 1 twice, and then the first side seal edge and the second side seal edge are adhered and fixed by the adhesive layer 3. And finally, the battery with good flanging effect is subjected to the procedures of capacity division, aging, sorting and the like to produce a final product.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.
Claims (4)
1. A pouch cell having a flange, comprising:
a main body;
the side seal edge extends out of the side face of the main body and is folded and attached to the back of the main body;
the electrode lug is arranged on the main body, and the side seal folded edge is parallel to the electrode lug;
the soft package battery further comprises an adhesive layer, wherein the adhesive layer is positioned between the side seal edge and the main body;
the side seal edge extends from the side face of the main body, starts to bend at the position connected with the side face of the main body, and forms two 90-degree bent parts through two 90-degree bending.
2. The pouch cell with the flange according to claim 1, wherein the side seal flange is a single side seal attached to one side of the body.
3. The pouch cell with the flange according to claim 1, wherein the side seal flange is a double-sided sealing flange connected to opposite sides of the main body.
4. The pouch cell with the flange according to claim 3, wherein the double-sided sealing comprises a first side sealing flange and a second side sealing flange, the first side sealing flange and the second side sealing flange being attached to the same side of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223062714.4U CN220172249U (en) | 2022-11-18 | 2022-11-18 | Soft package battery with folded edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223062714.4U CN220172249U (en) | 2022-11-18 | 2022-11-18 | Soft package battery with folded edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220172249U true CN220172249U (en) | 2023-12-12 |
Family
ID=89052112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223062714.4U Active CN220172249U (en) | 2022-11-18 | 2022-11-18 | Soft package battery with folded edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220172249U (en) |
-
2022
- 2022-11-18 CN CN202223062714.4U patent/CN220172249U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |