CN2754220Y - Cell pole ear - Google Patents
Cell pole ear Download PDFInfo
- Publication number
- CN2754220Y CN2754220Y CN200420102581.1U CN200420102581U CN2754220Y CN 2754220 Y CN2754220 Y CN 2754220Y CN 200420102581 U CN200420102581 U CN 200420102581U CN 2754220 Y CN2754220 Y CN 2754220Y
- Authority
- CN
- China
- Prior art keywords
- pole ear
- metal tape
- coated
- packaging bag
- opening
- 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.)
- Expired - Fee Related
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Classifications
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- Y02E60/12—
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a cell pole ear which comprises a metal tape of the pole ear, wherein one end of the metal tape of the pole ear is connected with a pole piece in a packaging bag which is composed of an aluminum-plastic packaging film, and the other end extends out of an opening of the packaging bag. A section of metal tape of the pole ear at the opening of the packaging bag is coated by film-shaped polymeric composite material. A position where the metal tape of the pole ear is coated by the polymeric composite material and the packaging bag is stagger is coated with one layer of liquid adhesive. The adhesive can be coated outside the opening of the packaging bag, or inside the opening of the packaging bag, or inside and outside the opening of the packaging bag. After solidified, the liquid adhesive forms a solidification film. The technology of the working process of the existing cell and the existing electric core is not changed fundamentally, a glue spreading process is added, therefore the utility model effectively plugs the electrolysis of the cell in which corrosive substances exist in the bag of the aluminum-plastic packaging film and ensures the sealability of the pole ear. The utility model is also suitable for other various chemical cells which have the same packaging form.
Description
Technical field
The utility model relates to a kind of battery pole ear, is meant a kind of electric core of flexible packing lithium battery lug especially, and this lithium battery electric core lug can solve the battery solution leakage problem comparatively up hill and dale.
Background technology
Electric core of flexible packing lithium battery all adopts plastic-aluminum packaging film to pack at present, its positive and negative electrode adopts different metal tapes to add macromolecular materials such as composite polyethylene, polypropylene and makes lug, lug is drawn from the plastic-aluminum packaging film of electric core, becoming the positive and negative electrode external terminal of battery, also is metal terminal and the unique sealing junction of plastic cement in the battery.Herein adhesive strength between metal tape and the compound macromolecular material and sealing property cause close important, its adhesive strength, sealing property does not reach requirement, then causes electric core leakage and battery is scrapped.Therefore the air-tightness at lug metal tape and composite high-molecular material interface becomes one of key technology of electric core of flexible packing lithium battery manufacturing.Existing conventional extreme ear structure is after lug is drawn from pole piece, stretch to the packing sack extension that plastic-aluminum packaging film constitutes, the lug of forming with polymer composite at sack place metal tape seals with sack, and adopting the purpose of polymer composite at this is to make lug and aluminum-plastic packaged intermembranous insulation and realize sealing better.But the consistency of the bonding back sealing of lug metal tape and polymer composite is poor, can produce " climb and ooze " phenomenon of gas, liquid in the abutting edge, and final electrolyte also can slowly ooze out from lug metal tape and macromolecular material junction and cause battery leakage.
Summary of the invention
The problem of the required solution of the utility model is how to strengthen the lug metal tape and the adhering and sealing effect between the composite high-molecular material of battery, guarantee battery air tightness and can effectively stop the generation of " climb and ooze " phenomenon.
Design a kind of battery pole ear according to the problems referred to above, comprised the solid-state coating film that forms after lug metal tape, polymer composite, liquid adhesive are solidified.Pole piece in the packaging bag that one end of lug metal tape and plastic-aluminum packaging film constitute is connected, and the other end extends to be packed outside the sack.Intersection at packing sack, polymer composite (material), metal tape is coated with one deck liquid adhesive, and this liquid adhesive solidifies the back and forms cured film.At this, liquid adhesive only is coated in outside the packing sack, or only is coated in the packing sack, or promptly is coated in packing and also is coated in the sack outside the packing sack.
The utility model is under the prerequisite of the manufacturing procedure technology that does not change existing battery and electric core thereof substantially, and by increasing by one coating process, the battery electrolyte shutoff that will include corrosive substance has effectively been guaranteed the sealing of lug in the plastic-aluminum packaging film bag.Simultaneously, the utility model also is suitable for other all kinds chemical cells with same package pattern.
Description of drawings
Embodiment
Fig. 1,2 gives configuration state signal and the signal of the annexation between lug and aluminum plastic film packaging bag of having shown the utility model lithium battery electric core, has wherein given prominence to the assembly relation of lug in flexible package lithium cell; Fig. 3～6 have provided the structure contrast schematic diagram of prior art lug and the utility model lug, and wherein Fig. 4 has given prominence to prior art lug solution leakage position and the signal of seepage process in use, and the signal of the position of the utility model liquid adhesive cured film.
Among the figure, lug metal tape 1 and composite high-molecular material 2 are formed flexible package polymer lithium cell polar ear integral body.Metal tape and composite high-molecular material junction produce sealing by the bonding back of polymer composite and metal tape hot pressing in the lug, and then the sealing property consistency of lug is relatively poor as simple employing the method, can not satisfy the needs that battery is made fully.The utility model is that a kind of liquid adhesive or solid thermal melten gel 3 are coated in metal tape and polymer composite two ends at the interface or an end wherein respectively; after its glue solidifies; form solid-state compound protective layer at metal tape and composite high-molecular material intersection; thereby further strengthen the adhesive strength and the sealing property of metal tape and composite high-molecular material; stop the electrolyte in the battery to cause the metal tape corrosion to cause battery leakage to exosmosis and with airborne reaction of moisture, to guarantee the sealing property of lug by lug and metal tape interface.This structure is suitable for any all kinds chemical cell with same package pattern.
Following table is that the utility model lug and prior art lug are respectively got 20 results that contrast detects in high corrosive liquid:
Claims (4)
1, a kind of battery pole ear, comprise lug metal tape (1), pole piece in the packaging bag that one end of lug metal tape and plastic-aluminum packaging film constitute is connected, the other end extends to outside the packing sack, one section lug metal tape at packing sack place is coated by a glue sheet polymer composite (2), it is characterized in that being coated with one deck liquid adhesive in the intersection of lug metal tape and polymer composite coating and packaging bag, this liquid adhesive solidifies the back and forms cured film (3).
2, battery pole ear according to claim 1 is characterized in that described liquid adhesive is coated in outside the packing sack.
3, battery pole ear according to claim 1 is characterized in that described liquid adhesive is coated in the packing sack.
4, battery pole ear according to claim 1 is characterized in that described liquid adhesive is coated in the packing sack with outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420102581.1U CN2754220Y (en) | 2004-12-08 | 2004-12-08 | Cell pole ear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420102581.1U CN2754220Y (en) | 2004-12-08 | 2004-12-08 | Cell pole ear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2754220Y true CN2754220Y (en) | 2006-01-25 |
Family
ID=35926329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200420102581.1U Expired - Fee Related CN2754220Y (en) | 2004-12-08 | 2004-12-08 | Cell pole ear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2754220Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326280A (en) * | 2008-12-22 | 2012-01-18 | 昭和电工株式会社 | Positive and negative connection leads and battery |
| CN106684304A (en) * | 2017-03-14 | 2017-05-17 | 格远电子科技（上海）有限公司 | Multilevel insulation paste lug of power lithium battery |
| CN114552139A (en) * | 2021-10-22 | 2022-05-27 | 万向一二三股份公司 | Lithium ion soft package battery tab capable of being protected from two sides and preparation method thereof |
-
2004
- 2004-12-08 CN CN200420102581.1U patent/CN2754220Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326280A (en) * | 2008-12-22 | 2012-01-18 | 昭和电工株式会社 | Positive and negative connection leads and battery |
| CN106684304A (en) * | 2017-03-14 | 2017-05-17 | 格远电子科技（上海）有限公司 | Multilevel insulation paste lug of power lithium battery |
| CN114552139A (en) * | 2021-10-22 | 2022-05-27 | 万向一二三股份公司 | Lithium ion soft package battery tab capable of being protected from two sides and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TCL CORPORATION Free format text: FORMER OWNER: HUIZHOU TCL HYPERPOWER BATTERIES INC. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: Technical center, 8 floor, TCL Arts crafts emporium, No. 6 Goose Road South, Guangdong, Huizhou, China: 516001 Patentee after: TCL Group Co., Ltd. Address before: Guangdong city in Huizhou Province town of Tong Fu Lu Huizhou TCL jinneny Battery Co., zip code: 516005 Patentee before: Huizhou TCL Jinneng Battery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060125 Termination date: 20121208 |