CN202134624U - Edge-sealing and fixing structure of flexible packaging lithium battery - Google Patents
Edge-sealing and fixing structure of flexible packaging lithium battery Download PDFInfo
- Publication number
- CN202134624U CN202134624U CN201120192837U CN201120192837U CN202134624U CN 202134624 U CN202134624 U CN 202134624U CN 201120192837 U CN201120192837 U CN 201120192837U CN 201120192837 U CN201120192837 U CN 201120192837U CN 202134624 U CN202134624 U CN 202134624U
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- China
- Prior art keywords
- edge sealing
- bonding agent
- lithium cell
- flexible package
- fixed structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the technical field of battery packaging, in particular to an edge-sealing and fixing structure of a flexible packaging lithium battery. The structure comprises a sealing edge on the side surface of a battery main body. A sealing edge zone of the sealing edge is upwardly bended. The sealing edge zone of the sealing edge and the side surface of the battery main body are bonded and fixed through first adhesive. Compared with the current edge-sealing and fixing structure, the structure disclosed by the utility model can adapt to the uneven condition of the sealing edge zone and can be suitable for the exterior of a flexible packaging lithium battery and variable size characteristics; the bonding property is better; the failure probability and the failure risk are reduced; simultaneously, the thickness and the width of the battery main body cannot be increased by the adhesive; therefore, the energy density of a thin battery is indirectly increased.
Description
Technical field:
The utility model relates to the battery packages technical field, refers in particular to flexible package lithium cell edge sealing fixed structure.
Background technology:
The packaging material of flexible package lithium cell are the thin and soft aluminum-plastic composite membrane of one deck.The aluminium lamination metal is arranged in the middle of the composite film material, and section exists and the external connection electrical apparatus short risk.Therefore, the packaging bag edge sealing need carry out insulation processing.Composite membrane through after the preforming with battery in contents fit tightly, and edge sealing that seals and transitional region are exposed to the outside of battery.In order to improve space availability ratio and follow-up assembling needs, the edge sealing after the sealing generally needs folding, the fixing processing.Quality folding, fixed form directly influences the energy density of battery.
As shown in Figure 1, the edge sealing of traditional lithium battery Soft Roll bag is handled, fixed form is: edge sealing 12 is positioned at battery main body 11 sides, and turn up in the edge sealing zone 121 that will be in horizontal plane edge sealing 12 earlier, makes the vertical plane in edge sealing zone 121 be close to battery main body 11 sides; Then, use the gummed paper 13 of insulation to cover side and the upper surface that battery is 90 degree bonding.Because edge sealing zone 121 irregularities, the inefficacy chance of these edge sealing 12 fixed structure modes is obviously higher.Simultaneously, the gummed paper 13 of this edge sealing structure covers two vertical surfaces of 90 degree, can increase the thickness and the width of battery, reduces energy content of battery density.
The utility model content:
The purpose of the utility model is exactly to provide a kind of to the deficiency of prior art existence can adapt to the uneven situation in edge sealing zone, reliable structure flexible package lithium cell edge sealing fixed structure.
To achieve these goals, the technical scheme of the utility model employing is:
Flexible package lithium cell edge sealing fixed structure, it comprises the edge sealing that is positioned at the battery main body side, the upwards bending of edge sealing zone of edge sealing is adhesively fixed through first bonding agent between the edge sealing zone of edge sealing and the battery main body side.
Wherein, as a kind of improvement of the utility model flexible package lithium cell edge sealing fixed structure, the edge sealing of said edge sealing zone is vertical to be provided with.
Wherein, A kind of improvement as the utility model flexible package lithium cell edge sealing fixed structure; Said first bonding agent is the mobile bonding agent with biadhesive, adopts mobile binding agent to be more suitable for flexible package lithium cell external form, characteristic that size is changeable, and adhesive property is better.The edge sealing zone that first bonding agent solidifies edge sealing through heating, mode air-dry or photo-irradiation treatment is adhesively fixed with the battery main body side.
Wherein, as a kind of improvement of the utility model flexible package lithium cell edge sealing fixed structure, the upper surface of said first bonding agent is coated with second bonding agent, and second bonding agent covers the upper surface, edge sealing zone of edge sealing.
Wherein, A kind of improvement as the utility model flexible package lithium cell edge sealing fixed structure; Said second bonding agent is the mobile bonding agent with biadhesive; Adopt mobile binding agent to be more suitable for flexible package lithium cell external form, characteristic that size is changeable, adhesive property is better, and second bonding agent solidify to form insulating barrier through heating, mode air-dry or photo-irradiation treatment.
Wherein, as a kind of improvement of the utility model flexible package lithium cell edge sealing fixed structure, said first bonding agent covers the upper surface, edge sealing zone of edge sealing.
Wherein, as a kind of improvement of the utility model flexible package lithium cell edge sealing fixed structure, the edge sealing of said edge sealing zone outer surface is coated with the gummed paper layer, and the adhesive faces of gummed paper layer directly is bonded on the outer surface of edge sealing zone.
Wherein, as a kind of improvement of the utility model flexible package lithium cell edge sealing fixed structure, said gummed paper layer is insulation gummed paper or the glue with single face viscosity.
Wherein, as a kind of improvement of the utility model flexible package lithium cell edge sealing fixed structure, said first bonding agent is heat-curable glue or the instant drying adhesive with biadhesive.
The utility model beneficial effect is: the utility model comprises the edge sealing that is positioned at the battery main body side, and the upwards bending of edge sealing zone of edge sealing is adhesively fixed through first bonding agent between the edge sealing zone of edge sealing and the battery main body side; With respect to existing edge sealing fixed structure mode; The utility model can adapt to the uneven situation in edge sealing zone, suitable flexible package lithium cell external form, the characteristic that size is changeable, and adhesive property is better; Reduce the probability and the failure risk that lost efficacy; Simultaneously, bonding agent does not increase battery main body thickness and width in the utility model, has improved the energy density of thin battery indirectly.
Description of drawings:
Fig. 1 is the structural representation of existing flexible package lithium cell edge sealing fixed structure.
Fig. 2 is the structural representation of the utility model embodiment 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the structural representation of the utility model embodiment 3.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described; See shown in Fig. 2～4; Flexible package lithium cell edge sealing fixed structure, it comprises the edge sealing 22 that is positioned at battery main body 21 sides, the upwards bending of edge sealing zone 221 of edge sealing 22; Edge sealing zone 221 after the bending vertically is provided with, and is adhesively fixed through first bonding agent 23 between the edge sealing zone 221 of edge sealing 22 and battery main body 21 sides.With respect to existing edge sealing fixed structure mode; The utility model can adapt to edge sealing zone 221 uneven situations, suitable flexible package lithium cell external form, the characteristic that size is changeable, and adhesive property is better; Reduce the probability and the failure risk that lost efficacy; Simultaneously, bonding agent does not increase battery main body 21 thickness and width in the utility model, has improved the energy density of thin battery indirectly.
Embodiment 1
See Fig. 2, earlier the edge sealing zone 221 of edge sealing 22 is turned up, and make itself and battery main body 21 sides be the angle of 10～90 degree; In the angle zone or the inner surface of angle apply the mobile bonding agent of first bonding agent, 23, the first bonding agents 23 for having biadhesive, first bonding agent, 23 coverages are all or part of inner surface of angle.Turn up the edge sealing zone 221 that is coated with first bonding agent 23; Make it hold up fully and be close to battery main body 21 sides; Heat in edge sealing zone 221 to first bonding agent 23 is arranged, air-dry or photo-irradiation treatment, and first bonding agent 23 is solidified and bonding battery main body 21.Upper surface at first bonding agent 23 applies second bonding agent 24, makes second bonding agent 24 soak into, cover the upper surface in edge sealing zone 221; The mobile bonding agent of second bonding agent 24 for having biadhesive, to the zone of containing second bonding agent 24 heat, air-dry or photo-irradiation treatment, make bonding agent solidify to form insulating barrier.
Embodiment 2
See Fig. 3, earlier the edge sealing zone 221 of edge sealing 22 is turned up, and itself and battery main body 21 sides are close to; Gap area to edge sealing 221 sides, zone and battery main body 21 sides adds first bonding agent 23, and makes first bonding agent 23 soak into, cover the upper surface in edge sealing zone 221; The mobile bonding agent of first bonding agent 23 for having biadhesive, to the zone of first bonding agent 23 heat, air-dry or photo-irradiation treatment, bonding agent is solidified and bonding battery main body 21.
Embodiment 3
See Fig. 4; Use edge sealing zone 221 outer surfaces of 25 pairs of edge sealing 22 of gummed paper layer to coat completely; The adhesive faces of gummed paper layer 25 directly is bonded on 221 outer surfaces of edge sealing zone during coating, and the scope that gummed paper layer 25 side cover edge sealing zone 221 is about 50%～100% of edge sealing 22 width.Insulation gummed paper or the glue of gummed paper layer 25 for having single face viscosity.
Earlier edge sealing zone 221 integral body are turned up, and made itself and battery main body 21 sides be the angle of 30～90 degree; In the angle zone or the inner surface of angle apply heat-curable glue or the instant drying adhesive of first bonding agent, 23, the first bonding agents 23 for having biadhesive.Tight edge sealing zone 221 is close to itself and battery main body 21 sides, and the zone that first bonding agent 23 is arranged is heated or air-dry processing, makes 23 curing of first bonding agent, bonding battery main body 21 and edge sealing zone 221.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (9)
1. flexible package lithium cell edge sealing fixed structure comprises the edge sealing that is positioned at the battery main body side, and the upwards bending of edge sealing zone of edge sealing is characterized in that: be adhesively fixed through first bonding agent between the edge sealing zone of said edge sealing and the battery main body side.
2. flexible package lithium cell edge sealing fixed structure according to claim 1 is characterized in that: the vertical setting in edge sealing zone of said edge sealing.
3. flexible package lithium cell edge sealing fixed structure according to claim 1 and 2; It is characterized in that: said first bonding agent is the mobile bonding agent with biadhesive, and the edge sealing zone that first bonding agent solidifies edge sealing through heating, mode air-dry or photo-irradiation treatment is adhesively fixed with the battery main body side.
4. flexible package lithium cell edge sealing fixed structure according to claim 3, it is characterized in that: the upper surface of said first bonding agent is coated with second bonding agent, and second bonding agent covers the upper surface, edge sealing zone of edge sealing.
5. flexible package lithium cell edge sealing fixed structure according to claim 4 is characterized in that: said second bonding agent is the mobile bonding agent with biadhesive, and second bonding agent solidify to form insulating barrier through heating, mode air-dry or photo-irradiation treatment.
6. flexible package lithium cell edge sealing fixed structure according to claim 3 is characterized in that: said first bonding agent covers the upper surface, edge sealing zone of edge sealing.
7. flexible package lithium cell edge sealing fixed structure according to claim 1 and 2 is characterized in that: the edge sealing zone outer surface of said edge sealing is coated with the gummed paper layer, and the adhesive faces of gummed paper layer directly is bonded on the outer surface of edge sealing zone.
8. flexible package lithium cell edge sealing fixed structure according to claim 7 is characterized in that: said gummed paper layer is insulation gummed paper or the glue with single face viscosity.
9. flexible package lithium cell edge sealing fixed structure according to claim 7 is characterized in that: said first bonding agent is heat-curable glue or the instant drying adhesive with biadhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192837U CN202134624U (en) | 2011-06-10 | 2011-06-10 | Edge-sealing and fixing structure of flexible packaging lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192837U CN202134624U (en) | 2011-06-10 | 2011-06-10 | Edge-sealing and fixing structure of flexible packaging lithium battery |
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| Publication Number | Publication Date |
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| CN202134624U true CN202134624U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120192837U Expired - Lifetime CN202134624U (en) | 2011-06-10 | 2011-06-10 | Edge-sealing and fixing structure of flexible packaging lithium battery |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969533A (en) * | 2012-07-10 | 2013-03-13 | 东莞新能源科技有限公司 | Flanging structure of soft package lithium ion battery and its making method |
| CN105826612A (en) * | 2016-04-19 | 2016-08-03 | 宁德新能源科技有限公司 | Edge sealing method for secondary lithium battery |
| WO2018049561A1 (en) * | 2016-09-13 | 2018-03-22 | 东莞新能源科技有限公司 | Battery |
| CN112840504A (en) * | 2020-03-30 | 2021-05-25 | 宁德新能源科技有限公司 | Packaging structure and battery cell |
| WO2021109670A1 (en) * | 2019-12-06 | 2021-06-10 | 宁德新能源科技有限公司 | Packaging structure and battery cell using same |
| CN113113703A (en) * | 2021-04-02 | 2021-07-13 | 惠州市超聚电池有限公司 | Edge sealing method of cylindrical soft package battery and cylindrical soft package battery |
| WO2022206382A1 (en) * | 2021-03-29 | 2022-10-06 | 珠海冠宇电池股份有限公司 | Lithium battery |
-
2011
- 2011-06-10 CN CN201120192837U patent/CN202134624U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969533A (en) * | 2012-07-10 | 2013-03-13 | 东莞新能源科技有限公司 | Flanging structure of soft package lithium ion battery and its making method |
| EP2685517A1 (en) * | 2012-07-10 | 2014-01-15 | Dongguan Amperex Technology Limited | A soft-package lithium battery edge fold structure |
| CN105826612A (en) * | 2016-04-19 | 2016-08-03 | 宁德新能源科技有限公司 | Edge sealing method for secondary lithium battery |
| US10166723B2 (en) | 2016-04-19 | 2019-01-01 | Ningde Amperex Technology Limited | Method of edge sealing for secondary lithium battery |
| CN105826612B (en) * | 2016-04-19 | 2019-04-05 | 宁德新能源科技有限公司 | A kind of edge bonding method of serondary lithium battery |
| WO2018049561A1 (en) * | 2016-09-13 | 2018-03-22 | 东莞新能源科技有限公司 | Battery |
| WO2021109670A1 (en) * | 2019-12-06 | 2021-06-10 | 宁德新能源科技有限公司 | Packaging structure and battery cell using same |
| CN112840504A (en) * | 2020-03-30 | 2021-05-25 | 宁德新能源科技有限公司 | Packaging structure and battery cell |
| WO2022206382A1 (en) * | 2021-03-29 | 2022-10-06 | 珠海冠宇电池股份有限公司 | Lithium battery |
| CN113113703A (en) * | 2021-04-02 | 2021-07-13 | 惠州市超聚电池有限公司 | Edge sealing method of cylindrical soft package battery and cylindrical soft package battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |