CN208433424U - A kind of Soft Roll laminated batteries encapsulating structure - Google Patents
A kind of Soft Roll laminated batteries encapsulating structure Download PDFInfo
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- CN208433424U CN208433424U CN201820784127.0U CN201820784127U CN208433424U CN 208433424 U CN208433424 U CN 208433424U CN 201820784127 U CN201820784127 U CN 201820784127U CN 208433424 U CN208433424 U CN 208433424U
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- Prior art keywords
- plastic film
- aluminum plastic
- soft roll
- main body
- battery core
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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 belongs to technical field of lithium ion, more particularly to a kind of Soft Roll laminated batteries encapsulating structure, including battery core main body, two tabs that the end of the battery core main body is extended and the aluminum plastic film for encapsulating the battery core main body, the top of the aluminum plastic film is provided with closedtop area, between the closedtop area and battery core main body top, the outer surface of aluminum plastic film described in upper layer and lower layer, which corresponds at two tabs, is respectively arranged with PP glue-line, the PP glue-line is merged with the aluminum plastic film by hot pressing function, aluminum plastic film described in upper layer and lower layer is merged by hot pressing function.Compared with the prior art, the utility model greatly promotes the package reliability of Soft Roll laminated cell, substantially reduces a possibility that closedtop area is rushed to open, and reduces immersion of the electrolyte to tab, promotes the service life of tab.
Description
Technical field
The utility model belongs to technical field of lithium ion more particularly to a kind of Soft Roll laminated batteries encapsulating structure.
Background technique
Lithium ion battery due to have many advantages, such as high-energy density, high output voltage, high-output power and be widely used.
Lithium ion battery is broadly divided into takeup type and two kinds stacked.The manufacturing process of stack type lithium ion battery is: first will be positive
Piece and negative electrode tab stack gradually, and diaphragm is arranged at intervals between positive plate and negative electrode tab；Aluminum plastic film is recycled to be packaged,
Including closedtop and side seal；Then the processes such as fluid injection, chemical conversion are carried out to the battery core after encapsulation again, is finally completed the production of battery.Its
In, the encapsulation of aluminum plastic film is highly important part in manufacturing process, when the reliability of encapsulation is low, once leakage, meeting occurs
Cause the performance of battery substantially to decay, dimensional deformation, corrosion electric appliance etc., causes different degrees of harm.Therefore, how to improve electricity
The encapsulation leakage problem in pond, improves the reliability of cell package, is target common in industry.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and provide a kind of Soft Roll laminated batteries encapsulation knot
Structure increases the package reliability of battery core, substantially reduces a possibility that closedtop area is rushed to open.
To achieve the goals above, the utility model uses following technical scheme:
A kind of Soft Roll laminated batteries encapsulating structure, the two poles of the earth that the end including battery core main body, the battery core main body is extended
Ear and aluminum plastic film for encapsulating the battery core main body, the top of the aluminum plastic film is provided with closedtop area, in the closedtop area
Between battery core main body top, the outer surface of aluminum plastic film described in upper layer and lower layer, which corresponds at two tabs, to be respectively arranged with
PP glue-line, the PP glue-line are merged with the aluminum plastic film by hot pressing function, and aluminum plastic film described in upper layer and lower layer passes through hot pressing function
Fusion.
It should be noted that pasting PP glue at two tabs after the aluminum plastic film of the utility model completes primary encapsulation at top
Then layer carries out secondary encapsulation by special end socket, and heats to end socket, realize the corresponding aluminum plastic film of the two poles of the earth ear field and PP glue-line
Melting, and by pressing, keep upper layer and lower layer aluminum plastic film and PP glue closed, second protection is carried out to packaging area, is both able to achieve pole
Ear welding region impulse- free robustness, while can increase the package reliability of battery core again, a possibility that closedtop area is rushed to open is substantially reduced, is subtracted
Few immersion of the electrolyte to tab, promotes the service life of tab.
As a kind of improvement of Soft Roll laminated batteries encapsulating structure described in the utility model, the shape of the PP glue-line is
Arc is rectangular.
As a kind of improvement of Soft Roll laminated batteries encapsulating structure described in the utility model, the chord length of the PP glue-line or
Length is greater than the width of the tab, so as to widen effective seal width of top pole ear field.
As a kind of improvement of Soft Roll laminated batteries encapsulating structure described in the utility model, the aluminum plastic film is by nylon
Layer, aluminium foil layer and cast polypropylene layer three successively compound composition.
As a kind of improvement of Soft Roll laminated batteries encapsulating structure described in the utility model, aluminum plastic film described in upper layer and lower layer
Cast polypropylene layer merged under hot pressing function.
It further include gel as a kind of improvement of Soft Roll laminated batteries encapsulating structure described in the utility model, it is described
Gel is attached on the tab.
The utility model has the beneficial effects that: the utility model provides a kind of Soft Roll laminated batteries encapsulating structure, including
Battery core main body, two tabs that extend of end of the battery core main body and the aluminum plastic film for encapsulating the battery core main body, institute
The top for stating aluminum plastic film is provided with closedtop area, between the closedtop area and battery core main body top, aluminium described in upper layer and lower layer
The outer surface of plastic film, which corresponds at two tabs, is respectively arranged with PP glue-line, and the PP glue-line and the aluminum plastic film pass through hot pressing
Effect is merged, and aluminum plastic film described in upper layer and lower layer passes through hot pressing function and merges.Compared with the prior art, the utility model greatly promotes
The package reliability of Soft Roll laminated cell substantially reduces a possibility that closedtop area is rushed to open, and reduces immersion of the electrolyte to tab,
Promote the service life of tab.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of the utility model.
Fig. 2 is the second structural representation of the utility model.
Wherein: 1- battery core main body, 2- tab, 3- aluminum plastic film, 4- closedtop area, 5-PP glue-line, 6- gel.
Specific embodiment
With reference to embodiment and Figure of description, the utility model is described in further detail, but this
The embodiment of utility model is not limited to this.
As shown in Figure 1 and 2, a kind of Soft Roll laminated batteries encapsulating structure, the end including battery core main body 1, battery core main body 1 are prolonged
Two tabs 2 stretched out and the aluminum plastic film 3 for packaging electric core main body 1, the top of aluminum plastic film 3 is provided with closedtop area 4, in closedtop
Between 1 top of area 4 and battery core main body, the outer surface of upper layer and lower layer aluminum plastic film 3, which corresponds at two tabs 2, is respectively arranged with PP glue-line
5, PP glue-lines 5 are merged with aluminum plastic film 3 by hot pressing function, and upper layer and lower layer aluminum plastic film 3 is merged by hot pressing function.
Further, the shape of PP glue-line 5 is arc or rectangular.
Further, the chord length or length of PP glue-line 5 are greater than the width of tab.
Further, aluminum plastic film 3 is by nylon layer, aluminium foil layer and cast polypropylene layer three is successively compound forms.
Further, the cast polypropylene layer of upper layer and lower layer aluminum plastic film 3 merges under hot pressing function.
The utility model further includes gel 6, and gel 6 is attached on tab 2.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all this field skills
It is practical new that art personnel any conspicuous improvement made on the basis of the utility model, replacement or modification belong to this
The protection scope of type.In addition, these terms are intended merely to facilitate although using some specific terms in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (6)
1. a kind of Soft Roll laminated batteries encapsulating structure, two tabs that the end including battery core main body, the battery core main body is extended
And the aluminum plastic film for encapsulating the battery core main body, the top of the aluminum plastic film are provided with closedtop area, it is characterised in that: in institute
It states between closedtop area and battery core main body top, the outer surface of aluminum plastic film described in upper layer and lower layer corresponds to the two tab punishment
It is not provided with PP glue-line, the PP glue-line is merged with the aluminum plastic film by hot pressing function, and aluminum plastic film described in upper layer and lower layer passes through
Hot pressing function fusion.
2. Soft Roll laminated batteries encapsulating structure according to claim 1, it is characterised in that: the shape of the PP glue-line is arc
Shape is rectangular.
3. Soft Roll laminated batteries encapsulating structure according to claim 2, it is characterised in that: the chord length or length of the PP glue-line
Degree is greater than the width of the tab.
4. Soft Roll laminated batteries encapsulating structure according to claim 1, it is characterised in that: the aluminum plastic film by nylon layer,
Aluminium foil layer and cast polypropylene layer three successively compound composition.
5. Soft Roll laminated batteries encapsulating structure according to claim 4, it is characterised in that: aluminum plastic film described in upper layer and lower layer
Cast polypropylene layer merges under hot pressing function.
6. Soft Roll laminated batteries encapsulating structure according to claim 1, it is characterised in that: it further include gel, the pole
Ear sticker is set on the tab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784127.0U CN208433424U (en) | 2018-05-24 | 2018-05-24 | A kind of Soft Roll laminated batteries encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784127.0U CN208433424U (en) | 2018-05-24 | 2018-05-24 | A kind of Soft Roll laminated batteries encapsulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433424U true CN208433424U (en) | 2019-01-25 |
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ID=65102169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820784127.0U Active CN208433424U (en) | 2018-05-24 | 2018-05-24 | A kind of Soft Roll laminated batteries encapsulating structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208433424U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190244A (en) * | 2019-06-04 | 2019-08-30 | 连云港德立信电子科技有限公司 | Flexible-packed battery tab and heat pressing forming device for the tab |
| CN110444700A (en) * | 2019-07-19 | 2019-11-12 | 江门吉锂能源有限公司 | A kind of pack case and its ultra-thin lithium cell of ultra-thin lithium cell |
| CN111600061A (en) * | 2019-02-21 | 2020-08-28 | 中信国安盟固利动力科技有限公司 | Soft package lithium ion power battery with heating film |
| CN112968218A (en) * | 2021-03-29 | 2021-06-15 | 天津市捷威动力工业有限公司 | Method for enhancing package reliability of top and bottom seals of soft package battery |
| WO2023106813A1 (en) * | 2021-12-07 | 2023-06-15 | 주식회사 엘지에너지솔루션 | Battery cell with atypical sticker-type protective tape |
-
2018
- 2018-05-24 CN CN201820784127.0U patent/CN208433424U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600061A (en) * | 2019-02-21 | 2020-08-28 | 中信国安盟固利动力科技有限公司 | Soft package lithium ion power battery with heating film |
| CN110190244A (en) * | 2019-06-04 | 2019-08-30 | 连云港德立信电子科技有限公司 | Flexible-packed battery tab and heat pressing forming device for the tab |
| CN110444700A (en) * | 2019-07-19 | 2019-11-12 | 江门吉锂能源有限公司 | A kind of pack case and its ultra-thin lithium cell of ultra-thin lithium cell |
| CN112968218A (en) * | 2021-03-29 | 2021-06-15 | 天津市捷威动力工业有限公司 | Method for enhancing package reliability of top and bottom seals of soft package battery |
| WO2023106813A1 (en) * | 2021-12-07 | 2023-06-15 | 주식회사 엘지에너지솔루션 | Battery cell with atypical sticker-type protective tape |
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