CN103213364B - Composite membrane for all-plastic lithium battery - Google Patents
Composite membrane for all-plastic lithium battery Download PDFInfo
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- CN103213364B CN103213364B CN201310104190.7A CN201310104190A CN103213364B CN 103213364 B CN103213364 B CN 103213364B CN 201310104190 A CN201310104190 A CN 201310104190A CN 103213364 B CN103213364 B CN 103213364B
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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
A kind of Composite membrane for all-plastic lithium battery, it is composited by barrier layer, intermediate gelatine layer, hot sealing layer.Barrier material has good barrier, and material such as energy blocking oxygen, water vapour etc. enters in battery and damages battery, and has good formability, light-proofness and high strength; Intermediate gelatine layer has good caking property, and has good chemical resistance, can resist the corrosion of electrolyte; Hot sealing layer have good from heat-sealing and with lug heat sealability, and there is good barrier to reduce the destruction of electrolyte to glue-line.This composite membrane, not containing aluminium foil, has the performance such as high-barrier, formability, high heat-sealing, high electrolyte resistance corrosion, can be used for the packaging of core of lithium ion cell, has the advantages such as lightweight, cost is low, easy processing.
Description
Technical field
The present invention relates to a kind of lithium battery composite membrane, particularly a kind of Composite membrane for all-plastic lithium battery.
Background technology
The flexible package of the lithium ion battery existed on the market is at present the composite membrane containing aluminium foil entirely, and almost all from Japanese import, this aluminum plastic film aluminium foil used needs special chemical preservation erosion process, technique is very complicated, cost is very high, even if so also often can be caused leakage, flatulence, layering and cause battery to be scrapped because of aluminium foil by electrolytic corrosion.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, proposes a kind of complete, the Composite membrane for all-plastic lithium battery that stable, cost is low.
The technical problem to be solved in the present invention is achieved through the following technical solutions, and a kind of Composite membrane for all-plastic lithium battery, is characterized in: formed by barrier layer, intermediate gelatine layer and hot sealing layer compoiste adhering,
Described barrier layer is one or several mixture of daifluoyl, Kynoar, polyvinylidene chloride, ethylene-vinyl alcohol copolymer, the multi-layer intercrossed high density polyethylene (HDPE) laminated, have high-barrier, high-mouldability and high-intensity performance, thickness is 15 μm-60 μm;
Described glue-line is dry type Composite Double component glue or the PUR with electrolyte resistance performance, has high-adhesion, can secure bond barrier layer of the present invention and hot sealing layer and have good electrolyte resistance performance, and bondline thickness is 2 μm-40 μm;
Described hot sealing layer is the multilayered composite of polypropylene or polypropylene and cyclic olefine copolymer, has high heat sealability and barrier property, and hot sealing layer thickness is 20 μm-100 μm;
By above-mentioned trilaminate material through dry type compound, extrude compound or the machine-shaping of hot paste combination process.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, its preparation method of employing dry type compound is: coat on barrier layer at dry complex equipment gluing position by the dry type Composite Double component glue with electrolyte resistance performance, by compound position pressure roll, hot sealing layer and barrier layer are bonded closely knit curing molding.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, its preparation method of compound is extruded in employing: one deck extruded by use coextru-lamination machine or two-layer PUR is coated on barrier layer, then is bonded together shaping by barrier layer and hot sealing layer while hot by composite roll.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, adopts its preparation method of hot paste compound to be: hot melt adhesive layer is first made coextrusion casting film with hot sealing layer, re-uses hot paste compounding machine and barrier layer fits together shaping.
Compared with prior art, it is composited by barrier layer, intermediate gelatine layer, hot sealing layer in the present invention.Barrier material has good barrier, and material such as energy blocking oxygen, water vapour etc. enters in battery and damages battery, and has good formability, light-proofness and high strength; Intermediate gelatine layer has good caking property, and has good chemical resistance, can resist the corrosion of electrolyte; Hot sealing layer have good from heat-sealing and with lug heat sealability, and there is good barrier to reduce the destruction of electrolyte to glue-line.This composite membrane, not containing aluminium foil, has the performance such as high-barrier, formability, high heat-sealing, high electrolyte resistance corrosion, can be used for the packaging of core of lithium ion cell, has the advantages such as lightweight, cost is low, easy processing.
Detailed description of the invention
A kind of Composite membrane for all-plastic lithium battery, is formed by barrier layer, intermediate gelatine layer and hot sealing layer compoiste adhering,
Described barrier layer is one or several mixture of daifluoyl, Kynoar, polyvinylidene chloride, ethylene-vinyl alcohol copolymer, the multi-layer intercrossed high density polyethylene (HDPE) laminated, have high-barrier, high-mouldability and high-intensity performance, thickness is 15 μm-60 μm;
Described glue-line is dry type Composite Double component glue or the PUR with electrolyte resistance performance, has high-adhesion, can secure bond barrier layer of the present invention and hot sealing layer and have good electrolyte resistance performance, and bondline thickness is 2 μm-40 μm;
Described hot sealing layer is the multilayered composite of polypropylene or polypropylene and cyclic olefine copolymer, has high heat sealability and barrier property, and hot sealing layer thickness is 20 μm-100 μm;
By above-mentioned trilaminate material through dry type compound, extrude compound or the machine-shaping of hot paste combination process.
Its preparation method of employing dry type compound is: coat on barrier layer at dry complex equipment gluing position by the dry type Composite Double component glue with electrolyte resistance performance, by compound position pressure roll, hot sealing layer and barrier layer are bonded closely knit curing molding.
Its preparation method of compound is extruded in employing: one deck extruded by use coextru-lamination machine or two-layer PUR is coated on barrier layer, then is bonded together shaping by barrier layer and hot sealing layer while hot by composite roll.
Adopt its preparation method of hot paste compound to be: hot melt adhesive layer is first made coextrusion casting film with hot sealing layer, re-use hot paste compounding machine and barrier layer fits together shaping.
Further illustrate technical scheme of the present invention below by way of several specific embodiment, but do not form the restriction to technical solution of the present invention:
Embodiment one: use 30 μm of daifluoyl films to do barrier layer; The dry type Composite Double component glue with electrolyte resistance performance does glue-line, bondline thickness 4 μm; The polypropylene of 76 μm and the multilayered composite film of cyclic olefine copolymer as hot sealing layer, by dry compound machine by shaping for three kinds of Material claddings.Finished product thickness 110 μm.
Embodiment two:
25 μm of polyvinylidene difluoride films are used to do barrier layer; The dry type Composite Double component glue with electrolyte resistance performance does glue-line, bondline thickness 4 μm; The polypropylene of 82 μm and the multilayered composite film of cyclic olefine copolymer as hot sealing layer, by dry compound machine by shaping for three kinds of Material claddings.Finished product thickness 111 μm.
Embodiment three:
80 μm of multi-layer intercrossed density polyethylene film with high laminated are used to do barrier layer; The PUR with electrolyte resistance performance does glue-line, bondline thickness 20 μm; The polypropylene of 50 μm and the multilayered composite film of cyclic olefine copolymer as hot sealing layer, by extruding compounding machine by shaping for three kinds of Material claddings.Finished product thickness 150 μm.
Embodiment four:
PUR and polypropylene and cyclic olefine copolymer are used and extrude curtain coating and namely make film, thickness is 70 μm, wherein PUR thickness 20 μm, cyclic olefine copolymer 20 μm, polypropylene 30 μm; 80 μm of multi-layer intercrossed density polyethylene film with high laminated are used to do barrier layer; By above-mentioned two kinds of films by hot paste compounding machine assembly.Finished product thickness 150 μm.
Claims (4)
1. a Composite membrane for all-plastic lithium battery, is characterized in that: formed by barrier layer, intermediate gelatine layer and hot sealing layer compoiste adhering,
Described barrier layer is the multi-layer intercrossed high density polyethylene (HDPE) laminated, and thickness is 15 μm-60 μm;
Described glue-line is dry type Composite Double component glue or the PUR with electrolyte resistance performance, and bondline thickness is 2 μm-40 μm;
Described hot sealing layer is the multilayered composite of polypropylene and cyclic olefine copolymer, and hot sealing layer thickness is 20 μm-100 μm;
By above-mentioned trilaminate material through dry type compound, extrude compound or the machine-shaping of heat posted combination process.
2. Composite membrane for all-plastic lithium battery according to claim 1, it is characterized in that the preparation method of employing dry type compound is: coat on barrier layer at dry complex equipment gluing position by the dry type Composite Double component glue with electrolyte resistance performance, by compound position pressure roll, hot sealing layer and barrier layer are bonded closely knit curing molding.
3. Composite membrane for all-plastic lithium battery according to claim 1, it is characterized in that adopting the preparation method extruding compound be: to use coextru-lamination machine to extrude one deck or two-layer PUR is coated on barrier layer, more while hot barrier layer and hot sealing layer are bonded together shaping by composite roll.
4. Composite membrane for all-plastic lithium battery according to claim 1, is characterized in that adopting the preparation method of heat posted compound be: hot melt adhesive layer is first made coextrusion casting film with hot sealing layer, re-uses heat posted compounding machine and barrier layer fits together shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310104190.7A CN103213364B (en) | 2013-03-28 | 2013-03-28 | Composite membrane for all-plastic lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310104190.7A CN103213364B (en) | 2013-03-28 | 2013-03-28 | Composite membrane for all-plastic lithium battery |
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| CN103213364A CN103213364A (en) | 2013-07-24 |
| CN103213364B true CN103213364B (en) | 2016-01-13 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395244B (en) * | 2013-08-08 | 2015-07-08 | 河南李烨包装科技有限公司 | Lithium battery flexible packaging film prepared through tape casting and preparation method thereof |
| CN103496203B (en) * | 2013-09-29 | 2016-11-23 | 江苏中金玛泰医药包装有限公司 | A kind of Lithium ion battery aluminum-plastic film utilizing PUR coating process to make |
| CN104167514B (en) * | 2014-07-08 | 2016-06-22 | 苏州市君悦新材料科技股份有限公司 | A kind of high-barrier, acid and alkali-resistance lithium battery packaging film |
| CN106574071B (en) | 2014-08-21 | 2020-05-29 | W·W·严 | Microporous sheet products and methods of making and using the same |
| WO2016073580A1 (en) | 2014-11-05 | 2016-05-12 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
| EP3216068A4 (en) | 2014-11-05 | 2018-04-25 | Yen, William Winchin | Microporous sheet product and methods for making and using the same |
| CN104610883B (en) * | 2014-12-30 | 2017-08-15 | 东莞市澳中电子材料有限公司 | A kind of lithium battery two-sided tape and preparation method thereof |
| CN105034489A (en) * | 2015-07-13 | 2015-11-11 | 苏州锂盾储能材料技术有限公司 | High-barrier type acid-resisting and stress-resisting aluminum plastic film for lithium battery |
| CN105479895A (en) * | 2015-12-12 | 2016-04-13 | 苏州锂盾储能材料技术有限公司 | Fusion and co-extrusion type highly-composited aluminum plastic film |
| CN106654073A (en) * | 2016-12-21 | 2017-05-10 | 天津力神电池股份有限公司 | Battery packaging film and manufacturing method thereof and used soft package lithium-ion battery |
| CN107116872B (en) * | 2017-04-06 | 2019-05-28 | 黄山永新股份有限公司 | A kind of high-barrier composite paper-plastic film for package |
| CN107086276A (en) * | 2017-04-25 | 2017-08-22 | 北京卫蓝新能源科技有限公司 | A kind of packaging material for battery and the battery containing the material |
| CN108000986A (en) * | 2017-12-08 | 2018-05-08 | 苏州爱康薄膜新材料有限公司 | A kind of corrosion-resisting lithium battery encapsulation aluminum plastic film |
| CN109817851A (en) * | 2018-12-28 | 2019-05-28 | 新纶复合材料科技（常州）有限公司 | A kind of composite plastic film |
| CN115377571A (en) * | 2022-09-14 | 2022-11-22 | 珠海冠宇电池股份有限公司 | Lithium battery packaging film and lithium battery |
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| CN202996917U (en) * | 2012-11-28 | 2013-06-12 | 东莞市芯能新材料有限公司 | Improved type lithium battery flexible packaging film |
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| US20020164441A1 (en) * | 2001-03-01 | 2002-11-07 | The University Of Chicago | Packaging for primary and secondary batteries |
| US8828591B2 (en) * | 2006-03-02 | 2014-09-09 | Sony Corporation | External packaging material for battery device, nonaqueous electrolyte secondary battery using the same, and battery pack |
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| JP2006026986A (en) * | 2004-07-14 | 2006-02-02 | Du Pont Mitsui Polychem Co Ltd | Laminate |
| CN101066623A (en) * | 2007-05-11 | 2007-11-07 | 惠州宝柏包装有限公司 | Process and apparatus for producing packing plastic material |
| CN201980565U (en) * | 2011-02-23 | 2011-09-21 | 珠海市赛日包装材料有限公司 | Soft package film for lithium battery |
| CN202996917U (en) * | 2012-11-28 | 2013-06-12 | 东莞市芯能新材料有限公司 | Improved type lithium battery flexible packaging film |
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| CN103213364A (en) | 2013-07-24 |
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Effective date of registration: 20211208 Address after: 222000 No. 38, Huanghe Road, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province Patentee after: Jiangsu Jinshang New Material Co.,Ltd. Address before: 222000 9 Changjiang Road, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province Patentee before: JIANGSU ZHONGJIN MATAI MEDICINAL PACKAGING Co.,Ltd. |