CN202042524U - Heat-sealing die of soft package lithium ion battery - Google Patents
Heat-sealing die of soft package lithium ion battery Download PDFInfo
- Publication number
- CN202042524U CN202042524U CN2011200552776U CN201120055277U CN202042524U CN 202042524 U CN202042524 U CN 202042524U CN 2011200552776 U CN2011200552776 U CN 2011200552776U CN 201120055277 U CN201120055277 U CN 201120055277U CN 202042524 U CN202042524 U CN 202042524U
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- CN
- China
- Prior art keywords
- heat
- groove
- sealing
- die
- heat seal
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- 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
Abstract
The utility model relates to the technical field of manufacturing of a soft package lithium ion battery, in particular to a heat-sealing die of the soft package lithium ion battery. The heat-sealing die comprises an upper die and a lower die matched with the upper die; a heating pipe for heating the die is arranged in the lower die; a projecting heat-sealing die edge is formed on the outer side of the top surface of the lower die; a groove is formed close to the heat-sealing film edge; one side of the groove is connected with the heat-sealing film edge, and the other side of the groove is connected with a positioning edge; the positioning edge is provided with a groove position for accommodating a battery lug; positioning edges on both sides of the groove position are provided with limiting block grooves; and limiting blocks for limiting the compression interval between the upper die and the lower die are arranged in the limiting block grooves. In the utility model, the thickness of heat-sealing sol is completely controllable, and the limiting blocks can be adjusted and replaced according to the thickness and the structure of an aluminum-plastic packaging film. Compared with the prior art, a heating-sealing technology disclosed by the utility model has the advantages of no big change, low cost and high operability.
Description
Technical field
The utility model relates to flexible packing lithium ion battery manufacturing technology field, is specifically related to the heat seal die of a kind of flexible package from lithium battery.
Background technology
Characteristics such as flexible packing lithium ion battery has that profile customizes arbitrarily, Capacity design broadness, in light weight, fail safe height are used day by day in fields such as number, toy model plane, military project, electric motor cars and to be enlarged.
Because the sandwich construction of flexible packing lithium ion battery plastic-aluminum packaging film: outermost one deck nylon layer, middle one deck aluminium lamination, innermost that layer is the PP layer, by the PP melting layer of high temperature with inside, is bonded together in encapsulation, reaches the purpose of cell sealing.
Therefore when producing, making flexible packing lithium ion battery, how to guarantee the validity of packaging effect, guarantee that enough PP layers merge, can not melt fully again simultaneously, otherwise battery can be fatal defective---leakage, inflatable: the bad meeting of cell package makes the slit of electrolyte by wherein of inside battery infiltrate, and causes battery failure; Outside simultaneously moisture also can be penetrated into inside battery by the slit, and the electrolyte generation chemical reaction with inside causes the battery inflatable.
For seeking better sealing effectiveness, the technical staff of flexible-packed battery to battery hot sealing process parameter, heat-sealing employed frock clamp etc. always in continual research, improvement, through groping so for many years, the leakage of flexible packing lithium ion battery now is greatly improved, but still there is certain leakage risk at present, is difficult to satisfy the high-end customer demand.
The utility model content
Technical problem to be solved in the utility model provides the heat seal die of a kind of flexible package from lithium battery, and this mould is by mechanical mode, adds that traditional temperature, heat-sealing time reaches the purpose of heat-sealing, good sealing effect, and production cost is low.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is:
A kind of flexible package is from the heat seal die of lithium battery, comprise patrix and the counterdie that cooperates with patrix, be provided with heat-generating pipe in the counterdie to mold heated, the described counterdie end face outside is provided with the heat seal die limit of evagination, have groove near the heat seal die limit, groove one side links to each other with the heat seal die limit, opposite side connects gulde edge, have the groove position that can hold battery pole ear on the described gulde edge, also be provided with the guide vane end stop groove on the gulde edge of both sides, groove position, the guide vane end stop of restriction upper die and lower die pressing spacing is located in the guide vane end stop groove, and this guide vane end stop is the rectangular metal piece.
The utility model has following remarkable result compared to existing technology:
The utility model increases the guide vane end stop of control heat seal die heat-sealing effect on the basis of traditional moulds, the height of guide vane end stop can be according to the height of the definite guide vane end stop of being installed of technological requirement, thereby control colloidal sol thickness better by the pressing spacing that the height of guide vane end stop is controlled between the upper and lower mould, overcome traditional handicraft like this and relied on external pressure that patrix is depressed to control the risk that colloidal sol thickness easily produces leakage.Because there is fluctuation in external pressure, cause the colloidal sol consistency of thickness poor, part battery leakage risk is high.
The complete may command of the utility model colloidal sol thickness can be adjusted the replacing guide vane end stop according to the thickness and the structure thereof of plastic-aluminum packaging film, and this hot sealing process is compared traditional handicraft, very cataclysm do not occur, and cost is low, and is workable.
Description of drawings
Accompanying drawing 1 is a counterdie structural representation of the present utility model (patrix does not show).
Embodiment
For the ease of those skilled in the art's understanding, the utility model structural principle is further described in detail below in conjunction with specific embodiment and accompanying drawing.
A kind of flexible package is from the heat seal die of lithium battery, comprise patrix and the counterdie that cooperates with patrix, referring to counterdie shown in Figure 1 (patrix is not shown), be provided with heat-generating pipe 1 in the counterdie to mold heated, the counterdie end face outside is provided with the heat seal die limit 2 of evagination, the patrix one of heat seal die limit 2 and pressing works to being placed on the battery plastic-aluminum packaging film heating and pressurizing sealing on the heat seal die limit, and present embodiment is the example explanation with heat-sealing flexible package column lithium ion battery.Counterdie has groove 3 near inboard, heat seal die limit, and groove one side links to each other with heat seal die limit 2, and opposite side connects gulde edge, has the groove position 4 that can hold battery pole ear on the gulde edge.Aluminum-plastic packaged mould when needs heat-sealing lithium battery, when for example needing the lug limit of sealed cell after the fluid injection, mould alignment in lithium battery limit is placed on the heat seal die limit 2, extend in outer lug correspondence and place the groove position 4 that can hold battery pole ear, have groove 3 near inboard, heat seal die limit and can prevent that lug is crooked when sealing.
In order to control the thickness of melten gel on the plastic-aluminum packaging film, guarantee that enough PP layers merge, can not melt fully again simultaneously, the utility model is controlled melten gel thickness by the height of guide vane end stop.Guide vane end stop 5 is one and the metal derby that cooperates of mold shape, and guide vane end stop 5 is arranged in the guide vane end stop groove that is provided with on the gulde edge, and the guide vane end stop groove is opened in the gulde edge both sides.
The utility model mould has increased guide vane end stop 5 on the basis of traditional moulds, because the increase of guide vane end stop, flexible packing lithium ion battery is when heat-sealing, overcome traditional dependence external pressure (air pressure) and controlled colloidal sol thickness, but, control colloidal sol thickness by the height of guide vane end stop, when utilizing this mould to seal according to the size and the technological requirement of plastic-aluminum packaging film, the colloidal sol consistency of thickness is good, the significantly lower leakage risk of battery.
The foregoing description only is a preferred implementation of the present utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the present utility model design, any conspicuous replacement all should fall within the protection range of the present utility model.
Claims (2)
1. a flexible package is from the heat seal die of lithium battery, comprise patrix and the counterdie that cooperates with patrix, be provided with heat-generating pipe (1) in the counterdie to mold heated, it is characterized in that: the described counterdie end face outside is provided with the heat seal die limit (2) of evagination, have groove (3) near the heat seal die limit, groove one side links to each other with heat seal die limit (2), opposite side connects gulde edge, have the groove position (4) that can hold battery pole ear on the described gulde edge, also be provided with the guide vane end stop groove on the gulde edge of both sides, groove position, the restriction patrix, the guide vane end stop (5) of counterdie pressing spacing is arranged in the guide vane end stop groove.
2. flexible package according to claim 1 is characterized in that from the heat seal die of lithium battery: described guide vane end stop is the rectangular metal piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200552776U CN202042524U (en) | 2011-03-04 | 2011-03-04 | Heat-sealing die of soft package lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200552776U CN202042524U (en) | 2011-03-04 | 2011-03-04 | Heat-sealing die of soft package lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042524U true CN202042524U (en) | 2011-11-16 |
Family
ID=44969957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200552776U Expired - Fee Related CN202042524U (en) | 2011-03-04 | 2011-03-04 | Heat-sealing die of soft package lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953149A (en) * | 2014-03-27 | 2015-09-30 | 惠州亿纬锂能股份有限公司 | Battery roll core packaging device and battery roll core packaging method |
-
2011
- 2011-03-04 CN CN2011200552776U patent/CN202042524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953149A (en) * | 2014-03-27 | 2015-09-30 | 惠州亿纬锂能股份有限公司 | Battery roll core packaging device and battery roll core packaging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20130508 Granted publication date: 20111116 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20131108 Granted publication date: 20111116 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20130304 |