CN201387922Y - Flexible packing lithium ion battery electrode lug heat sealing die structure - Google Patents
Flexible packing lithium ion battery electrode lug heat sealing die structure Download PDFInfo
- Publication number
- CN201387922Y CN201387922Y CN200920135342U CN200920135342U CN201387922Y CN 201387922 Y CN201387922 Y CN 201387922Y CN 200920135342 U CN200920135342 U CN 200920135342U CN 200920135342 U CN200920135342 U CN 200920135342U CN 201387922 Y CN201387922 Y CN 201387922Y
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- CN
- China
- Prior art keywords
- electrode lug
- lithium ion
- die
- heat
- ion battery
- 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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- 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 discloses a flexible packing lithium ion battery electrode lug heat-seal die structure, and aims at providing the flexible packing lithium ion battery electrode lug heat-seal die structure whose electrode lug glue is uniformly heated. The structure comprises an upper die and a lower die, wherein the upper die is provided with a sealing block, the lower die is provided with a heating block whose height is the same with that of the sealing block of the upper die and is correspondingly staggered with the sealing block, the lower die is further provided with soft silica gel strips, and the soft silica gel strips are embedded into the die body of the lower die. The electrode lug glue is uniformly heated, can effectively prevent the short circuit occurring between an electrode lug and packing film owing to the superfusion of the electrode lug glue. The structure is suitable for the manufacturing field of lithium ion batteries.
Description
Technical field
The utility model belongs to soft dress lithium ion battery and makes the field, specifically relates to a kind of soft package lithium ion cell polar ear encapsulating structure.
Background technology
Along with development of technology, flexible packing lithium ion battery is used more and more widely as high power heavy-current discharge battery, still, because more and more higher to every performance of battery.Soft package lithium ion cell polar ear packaging plastic hot melt effect of the prior art is relatively poor in the production equipment of flexible packing lithium ion battery, easily superfusion or molten, infusibility more after the particularly bipolar ear stack.
Summary of the invention
Technical purpose of the present utility model is for overcoming flexible packing lithium ion battery in process of production in the battery pole ear encapsulation process, the technical problem of the hot melt weak effect of packaging plastic, the soft package lithium ion cell polar ear encapsulating mould structure that provides a kind of lug glue to be heated evenly.
For realizing above technical purpose, the technical solution of the utility model is:
A kind of soft package lithium ion cell polar ear heat-seal mould structure, include upper die and lower die, described patrix is provided with and seals piece, described counterdie be provided with patrix seal identical but the heat block that relative position staggers of tile height, also be provided with the soft silica gel bar on the described counterdie, described soft silica gel bar embeds in the counterdie die body.
In structure of the present utility model, on the counterdie of heat seal die, increased heat block, it is identical that heat block height and patrix seal tile height, but relative position staggers, and opens an elongated slot on the counterdie die body, the soft silica gel bar embedded in the elongated slot of die body.At two lugs of each spot welding of positive/negative plate of battery, two lugs can be overlapped into corresponding positive and negative electrode behind coiling, and burr on the lug are carried out deburring handle.Battery positive/negative plate is made the volume core after reeling, the packaging film of putting into corresponding model carries out closedtop, the pressure that seals during closedtop is as much as possible little of 0.1～0.2MPa, the heat-seal mold temperature: the patrix temperature is controlled at 190～200 ℃, the counterdie temperature is controlled at 230～250 ℃, each 2～3 seconds of heat-sealing time, battery front side upwards encapsulation once upwards encapsulates the battery reverse side once then again.Because (it is low very difficult molten mutually that two lugs are close to portion temperature, by the assistant heating of counterdie heat block, melts mutually thereby can make lug glue thermally equivalent reach two lug glue in lug glue inboard when bipolar ear encapsulates; Adopt soft silica gel that the uneven place of packaging film also can be fused, particularly also can fuse under the situation that the dislocation of two lugs is very big;
Useful technique effect of the present utility model is: positive and negative encapsulation simultaneously can make both sides be heated to have consistency, from reaching packaging effect preferably, can adopt less pressure can effectively avoid the superfusion of lug glue to cause lug and packaging film short circuit to occur when encapsulating by positive and negative twice encapsulation.
Description of drawings
The last figure of Fig. 1 is the structural representation of heat sealing machine mold of the present utility model, and figure below is the bed die structural representation on the utility model heat sealing machine;
Fig. 2 is the structural representation of lug glue to be packaged and lug bus;
Embodiment
In conjunction with Fig. 1 and Fig. 2, in the hot heat-seal mould structure of soft package lithium ion cell polar ear of the present utility model, bag is provided with patrix 11 and counterdie 21, be provided with at patrix 11 and seal piece 1, described counterdie 21 be provided with patrix 11 seal highly identical but the heat block 2 that relative position staggers of piece 1, also be provided with soft silica gel bar 3 on the described counterdie, described silica gel strip embeds in counterdie 21 die bodys.
In structure of the present utility model, on the counterdie 21 of heat seal die, increased heat block 2, on heat block 2 height and the patrix 11 to seal piece 1 highly identical, but relative position staggers, on counterdie 21 die bodys, open an elongated slot, the soft silica gel bar is embedded in the elongated slot of die body, and with heat block 2 parallel projections.In production technology, at two lugs of each spot welding of positive/negative plate of battery, two lugs, two lugs behind coiling can be overlapped into corresponding positive and negative electrode, and burr on the lug are carried out deburring handle.Battery positive/negative plate is made the volume core after reeling, the packaging film of putting into corresponding model carries out closedtop, the pressure that seals during closedtop is as much as possible little of 0.1～0.2MPa, the heat-seal mold temperature: the patrix temperature is controlled at 190～200 ℃, the counterdie temperature is controlled at 230～250 ℃, each 2～3 seconds of heat-sealing time, battery front side upwards encapsulation once upwards encapsulates the battery reverse side once then again.Because (it is low very difficult molten mutually that two lugs are close to portion temperature, by the assistant heating of counterdie heat block, melts mutually thereby can make lug glue thermally equivalent reach two lug glue in lug glue inboard when bipolar ear encapsulates; Adopt soft silica gel that the uneven place of packaging film also can be fused, particularly also can fuse under the situation that the dislocation of two lugs is very big; By positive and negative twice encapsulation, can adopt less pressure can effectively avoid the superfusion of lug glue to cause lug and packaging film short circuit to occur during encapsulation, in Fig. 2,5 is the lug bus, 6 is lug glue.
Encapsulating mould is installed on the closedtop machine up and down, and adjust the evenness and the degree of registration of encapsulating mould up and down, pressing force is controlled at 0.1～0.2MPa, the heat seal die temperature: the patrix temperature is controlled at 190～200 ℃, the counterdie temperature is controlled at 230～250 ℃, each 2～3 seconds of heat-sealing time was adjusted the heat sealing machine parameter, and made the heat sealing machine preheating reach stable state in 10 minutes.
The volume core of winding is put into molded plastic-aluminum packaging film, also will treat that edge sealing is placed on the soft silica gel downwards to battery front side, make the heat sealing machine patrix press down once encapsulation, electric core is faced up carry out the secondary encapsulation again, the encapsulation workman checks battery outward appearance and melten gel effect.Operating principle of the present invention is, lug glue externally reaches under the inner while heating condition and encapsulates, avoid the unidirectional conduction lug of heat local heating situation, superfusion or molten operating mode appearance have been eliminated, by twice heat-sealing two lugs are heated and have consistency, avoid that one-sided temperature is too high to cause the lug short circuit.
In a word, the utility model design is ingenious, and principle is simple, and technology maturation is easy to implement. and be a kind of not only practical but also novel technological improvement in this area.
Claims (1)
1. hot heat-seal mould structure of soft package lithium ion cell polar ear, include upper die and lower die, it is characterized in that: described patrix is provided with and seals piece, described counterdie be provided with patrix seal identical but the heat block that relative position staggers of tile height, also be provided with the soft silica gel bar on the described counterdie, described soft silica gel bar embeds in the counterdie die body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135342U CN201387922Y (en) | 2009-03-03 | 2009-03-03 | Flexible packing lithium ion battery electrode lug heat sealing die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135342U CN201387922Y (en) | 2009-03-03 | 2009-03-03 | Flexible packing lithium ion battery electrode lug heat sealing die structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387922Y true CN201387922Y (en) | 2010-01-20 |
Family
ID=41580464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920135342U Expired - Fee Related CN201387922Y (en) | 2009-03-03 | 2009-03-03 | Flexible packing lithium ion battery electrode lug heat sealing die structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201387922Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410103A (en) * | 2016-06-16 | 2017-02-15 | 东莞市先诺电子材料有限公司 | Injection molding type automatic production device and automatic process of tab |
-
2009
- 2009-03-03 CN CN200920135342U patent/CN201387922Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410103A (en) * | 2016-06-16 | 2017-02-15 | 东莞市先诺电子材料有限公司 | Injection molding type automatic production device and automatic process of tab |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20120303 |