CN201046812Y - Lithium battery soft packaging film - Google Patents
Lithium battery soft packaging film Download PDFInfo
- Publication number
- CN201046812Y CN201046812Y CNU2007200687368U CN200720068736U CN201046812Y CN 201046812 Y CN201046812 Y CN 201046812Y CN U2007200687368 U CNU2007200687368 U CN U2007200687368U CN 200720068736 U CN200720068736 U CN 200720068736U CN 201046812 Y CN201046812 Y CN 201046812Y
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- lithium battery
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- flexible packaging
- packaging film
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Abstract
The utility model relates to a lithium battery flexible packaging film, which consists of a functional coating layer, an outer layer formed by heat-resistant resin film, an aluminum foil layer, and an inner layer formed by thermoplastic resin film, and is characterized in that the outer layer and (or) the inner layer are coated with the functional coating layer. The utility model has the advantage that dissolution and corrosion do not occur to leading the scrap of a product when electrolyte contacts the heat-resistant resin film of the surface. The utility model has better mechanical adaptation when being used as secondary processing which produces a packaging material into a pattern die, and has difficult occurrence of the damage to the packaging material.
Description
Technical field
The utility model relates to a kind of lithium battery flexible packaging film, relates in particular to a kind of electrolyte resistance pollution and is fit to cold stamping shaped lithium battery flexible packaging film, belongs to the flexible packaging film technical field.
Background technology
With the immediate prior art of the present invention be Japanese Showa Denko Packaging K.K. on August 10th, 2004 in Chinese patents, application number is: 200410058323.2, patent name is a packaging material for battery case and with the battery case of its shaping.It discloses a kind of lithium battery flexible packaging film, have skin, aluminium foil sandwich layer that is formed by the heat-resistant resin film and the internal layer that is formed by the thermoplastic resin membrane, aluminium foil sandwich layer and internal layer are bonding as the adhesive composition of necessary composition in order to polyolefin polyhydric alcohol and polyfunctional isocyanate's hardener.Above-mentioned packing are because surperficial heat-resistant resin film electrolyte resistance not, when battery acid touches surperficial heat-resistant resin film when producing dissolving and corrosion can take place, and cause product rejection.Above-mentioned packing are owing to internal layer thermoplastic resin membrane's mechanical bad adaptability, so when as secondary processing packing being made the mold pressing type, the packing breakage takes place easily.
Summary of the invention
The purpose of this utility model provides a kind of ability electrolyte contamination and is fit to cold stamping shaped lithium battery flexible packaging film.
For realizing above purpose, the technical solution of the utility model provides a kind of lithium battery flexible packaging film, comprise heat-resistant resin film, aluminium foil sandwich layer, thermoplastic resin membrane, the aluminium foil sandwich layer is located between heat-resistant resin film and the thermoplastic resin membrane, it is characterized in that, respectively establish one deck functional coat at heat-resistant resin film and thermoplastic resin membrane outside.
Described functional coat is fluorinated polyethylene resin, Tissuemat E, fluorinated polypropylene resin, polypropylene wax, polyorganosiloxane resin, acrylic resin, liquid paraffin, alkide resin, oleamide, erucyl amide, fatty acid ester.
The utility model adopt outer and (or) internal layer is coated with functional coat; functional coat adopts dip-coating, spraying, intaglio plate coating, electrostatic adherence, three rollers to reverse coating method and is coated on skin; form layer protective layer at superficies; dissolving and corrosion take place in the time of can avoiding the battery acid direct contact to surperficial heat-resistant resin film; simultaneously when packing being made the mold pressing type as secondary processing; mould when reducing mold pressing and internal layer thermoplastic resin membrane's friction coefficient; improve the mechanical comformability of packaging film, avoid the packing breakage.
The utility model has the advantages that the ability electrolyte contamination and be fit to cold stamping shaped.
Description of drawings
Fig. 1 is a kind of lithium battery flexible packaging film structural representation;
Fig. 2 is embodiment 2 structural representations;
Fig. 3 is embodiment 3 structural representations.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
At first with known do multiple, squeeze skin that technology such as multiple, that heat is compound forms the heat-resistant resin film, aluminium foil sandwich layer, and make the half-blank film by the internal layer that the thermoplastic resin membrane forms.
As shown in Figure 1, be functional coat/heat-resistant resin film/aluminium foil sandwich layer/thermoplastic resin membrane/functional coat lithium battery flexible packaging film scheme drawing, described lithium battery flexible packaging film by: functional coat 4, heat-resistant resin film 1, aluminium foil sandwich layer 2, thermoplastic resin membrane 3, functional coat are formed for 4 five layers, aluminium foil sandwich layer 2 is located between heat-resistant resin film 1 and the thermoplastic resin membrane 3, respectively establishes one deck functional coat 4 at heat-resistant resin film 1 and thermoplastic resin membrane 3 outsides.
The skin 1 that the heat-resistant resin film forms is selected the polyamide of 25 micron thickness for use, aluminium foil sandwich layer 2 is selected the soft aluminium foil of 45 micron thickness for use, thermoplastic resin membrane 3 selects the stream court of a feudal ruler polypropylene film of 45 micron thickness for use, and it is 500 liquid paraffin that functional coat 4 is selected mol wt for use, and coating weight is 3 gram/sq ms.
The manufacture method of lithium battery flexible packaging film comprises the following steps:
(1) the stream court of a feudal ruler polypropylene film 3 with soft aluminium foil 2,45 micron thickness of polyamide 1,45 micron thickness of 25 micron thickness adopts the dry type composite algorithms to carry out the compound half-blank film that makes.
(2) with the half-blank film on coating machine, adopt the intaglio plate coating machine 1 of the polyamide of 25 micron thickness, the thick mol wt of coating 3 gram/every sq ms is 500 liquid paraffin, is 500 liquid paraffin at the thick mol wt of the stream court of a feudal ruler of 45 micron thickness polypropylene film 3 coatings, 3 gram/every sq ms.
When the finished product that makes touched 1 of polyamide at battery acid, dissolving and corrosion did not take place in polyamide.
Carrying out secondary processing when packing are made the mold pressing type, right with the product of uncoated functional coat
Descend 80% than present embodiment breakage rate.
Embodiment 2
As shown in Figure 2, be functional coat/heat-resistant resin film/aluminium foil sandwich layer/thermoplastic resin membrane's lithium battery flexible packaging film scheme drawing, described lithium battery flexible packaging film is made up of for 3 four layers functional coat 4, heat-resistant resin film 1, aluminium foil sandwich layer 2, thermoplastic resin membrane, aluminium foil sandwich layer 2 is located between heat-resistant resin film 1 and the thermoplastic resin membrane 3, is provided with one deck functional coat 4 in heat-resistant resin film 1 outside.
The skin 1 that the heat-resistant resin film forms is selected the polyamide of 25 micron thickness for use, aluminium foil sandwich layer 2 is selected the soft aluminium foil of 45 micron thickness for use, thermoplastic resin membrane 3 selects the co-extrusion polypropylene film of 45 micron thickness for use, it is 2000 tetrafluorocthylene resin that functional coat 4 is selected number-average molecular weight for use, and coating weight is 1 gram/sq m.
The manufacture method of lithium battery flexible packaging film comprises the following steps:
(1) with the polyamide 1 of 25 micron thickness and the soft aluminium foil 2 of 45 micron thickness, it is compound to adopt the dry type composite algorithm to carry out, and the co-extrusion polypropylene film of internal layer 45 micron thickness adopts hot complex method to make the half-blank film.
(2) with the half-blank film on coating machine, adopt the intaglio plate coating machine 1 of the polyamide of 25 micron thickness, the thick number-average molecular weight of coating 1 gram/sq m is 2000 tetrafluorocthylene resin.
When the finished product that makes touched 1 of polyamide at battery acid, dissolving and corrosion did not take place in polyamide.
As shown in Figure 3, be heat-resistant resin film/aluminium foil sandwich layer/thermoplastic resin membrane/functional coat lithium battery flexible packaging film scheme drawing, described lithium battery flexible packaging film is made up of for 4 four layers heat-resistant resin film 1, aluminium foil sandwich layer 2, thermoplastic resin membrane 3, functional coat, aluminium foil sandwich layer 2 is located between heat-resistant resin film 1 and the thermoplastic resin membrane 3, is provided with one deck functional coat 4 in thermoplastic resin membrane 3 outsides.
The skin 1 that the heat-resistant resin film forms is selected the polyamide of 25 micron thickness for use, aluminium foil sandwich layer 2 is selected the soft aluminium foil of 45 micron thickness for use, thermoplastic resin membrane 3 selects the stream court of a feudal ruler polypropylene film of 45 micron thickness for use, it is the oleamide of 75 degree that functional coat 4 is selected fusing point for use, and coating weight is 0.2 gram/sq m.
The manufacture method of lithium battery flexible packaging film comprises the following steps:
(1) the stream court of a feudal ruler polypropylene film with soft aluminium foil 2,45 micron thickness of polyamide 1,45 micron thickness of 25 micron thickness adopts the dry type composite algorithm to carry out the compound half-blank film that makes.
(2) with the half-blank film on coating machine, be 75 ℃ oleamide at the stream court of a feudal ruler of 45 micron thickness 3 electrostatic adherence fusing points of polypropylene film, coating weight is 0.2 gram/sq m.
Carrying out secondary processing when packing are made the mold pressing type, descending 60% with the product contrast present embodiment breakage rate of uncoated functional coat.
Claims (7)
1. lithium battery flexible packaging film, comprise heat-resistant resin film (1), aluminium foil sandwich layer (2), thermoplastic resin membrane (3), aluminium foil sandwich layer (2) is located between heat-resistant resin film (1) and the thermoplastic resin membrane (3), it is characterized in that, respectively establish one deck functional coat (4) at heat-resistant resin film (1) and thermoplastic resin membrane (3) outside.
2. a kind of lithium battery flexible packaging film according to claim 1 is characterized in that, is provided with one deck functional coat (4) in heat-resistant resin film (1) outside.
3. a kind of lithium battery flexible packaging film according to claim 1 is characterized in that, is provided with one deck functional coat (4) in thermoplastic resin membrane (3) outside.
4. a kind of lithium battery flexible packaging film according to claim 1 is characterized in that, described heat-resistant resin film (1) material is a polyamide.
5. a kind of lithium battery flexible packaging film according to claim 1 is characterized in that, described aluminium foil sandwich layer (2) is soft aluminium foil.
6. a kind of lithium battery flexible packaging film according to claim 1 is characterized in that, described thermoplastic resin membrane (3) is stream court of a feudal ruler polypropylene film or co-extrusion polypropylene film.
7. a kind of lithium battery flexible packaging film according to claim 1, it is characterized in that described functional coat (4) is fluorinated polyethylene resin, Tissuemat E, fluorinated polypropylene resin, polypropylene wax, polyorganosiloxane resin, acrylic resin, liquid paraffin, alkide resin, oleamide, erucyl amide, fatty acid ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200687368U CN201046812Y (en) | 2007-04-09 | 2007-04-09 | Lithium battery soft packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200687368U CN201046812Y (en) | 2007-04-09 | 2007-04-09 | Lithium battery soft packaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201046812Y true CN201046812Y (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200687368U Expired - Lifetime CN201046812Y (en) | 2007-04-09 | 2007-04-09 | Lithium battery soft packaging film |
Country Status (1)
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| CN (1) | CN201046812Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158298A (en) * | 2011-12-08 | 2013-06-19 | 祝琼 | Aluminium-plastic film and preparation method for same |
| CN103887452A (en) * | 2014-02-26 | 2014-06-25 | 明基材料有限公司 | Battery packaging film and preparation method of battery packaging film |
| DE202014105973U1 (en) * | 2014-12-10 | 2016-03-11 | Buergofol GmbH | Foil with protective varnish and siloxane coating |
| CN105619952A (en) * | 2014-10-31 | 2016-06-01 | 极星材料股份有限公司 | Aluminum-plastic composite film and manufacturing method therefor |
| CN110010802A (en) * | 2019-04-23 | 2019-07-12 | 上海紫江新材料科技股份有限公司 | A kind of double-deck coloring lithium battery aluminum-plastic film and preparation method thereof |
| CN113782880A (en) * | 2020-06-05 | 2021-12-10 | 上海紫江新材料科技股份有限公司 | Corrosion-resistant lithium battery aluminum plastic film and preparation method thereof |
| CN114665198A (en) * | 2022-03-31 | 2022-06-24 | 肖冰 | Electrolyte-resistant aluminum-plastic film, preparation method and lithium ion battery thereof |
-
2007
- 2007-04-09 CN CNU2007200687368U patent/CN201046812Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158298A (en) * | 2011-12-08 | 2013-06-19 | 祝琼 | Aluminium-plastic film and preparation method for same |
| CN103158298B (en) * | 2011-12-08 | 2015-09-16 | 祝琼 | A kind of aluminum plastic film and preparation method thereof |
| CN103887452A (en) * | 2014-02-26 | 2014-06-25 | 明基材料有限公司 | Battery packaging film and preparation method of battery packaging film |
| CN105619952A (en) * | 2014-10-31 | 2016-06-01 | 极星材料股份有限公司 | Aluminum-plastic composite film and manufacturing method therefor |
| DE202014105973U1 (en) * | 2014-12-10 | 2016-03-11 | Buergofol GmbH | Foil with protective varnish and siloxane coating |
| CN110010802A (en) * | 2019-04-23 | 2019-07-12 | 上海紫江新材料科技股份有限公司 | A kind of double-deck coloring lithium battery aluminum-plastic film and preparation method thereof |
| CN113782880A (en) * | 2020-06-05 | 2021-12-10 | 上海紫江新材料科技股份有限公司 | Corrosion-resistant lithium battery aluminum plastic film and preparation method thereof |
| CN114665198A (en) * | 2022-03-31 | 2022-06-24 | 肖冰 | Electrolyte-resistant aluminum-plastic film, preparation method and lithium ion battery 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: SHANGHAI ZIJIANG NEW MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI ZIJIANG COLOUR PRINTING + PACKAGING CO., LTD. Effective date: 20120815 Owner name: SHANGHAI ZIJIANG COLOUR PRINTING + PACKAGING CO., Effective date: 20120815 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120815 Address after: 201108 Shanghai city Minhang District Zhuan Hing Road No. 889 Patentee after: Shanghai Ziteng Packaging Material Co., Ltd. Patentee after: Shanghai Zijiang Colour Printing & Packaging Co., Ltd. Address before: 201108 Shanghai city Minhang District Zhuan Hing Road No. 888 Patentee before: Shanghai Zijiang Colour Printing & Packaging Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080416 |
|
| CX01 | Expiry of patent term |