CN105070851B - A kind of polymer Li-ion battery packs high-barrier dedicated film - Google Patents
A kind of polymer Li-ion battery packs high-barrier dedicated film Download PDFInfo
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- CN105070851B CN105070851B CN201510500240.2A CN201510500240A CN105070851B CN 105070851 B CN105070851 B CN 105070851B CN 201510500240 A CN201510500240 A CN 201510500240A CN 105070851 B CN105070851 B CN 105070851B
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 36
- 229920000642 polymer Polymers 0.000 title claims abstract description 26
- 239000004743 Polypropylene Substances 0.000 claims abstract description 42
- 229920001155 polypropylene Polymers 0.000 claims abstract description 41
- -1 polypropylene Polymers 0.000 claims abstract description 30
- 239000005030 aluminium foil Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000004677 Nylon Substances 0.000 claims abstract description 12
- 229920001778 nylon Polymers 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims abstract description 12
- 239000007800 oxidant agent Substances 0.000 claims abstract description 3
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 62
- 239000004814 polyurethane Substances 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 239000004831 Hot glue Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 239000000020 Nitrocellulose Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000003851 corona treatment Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001220 nitrocellulos Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 claims 1
- 229920001038 ethylene copolymer Polymers 0.000 claims 1
- 108010025899 gelatin film Proteins 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 13
- 230000004888 barrier function Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000011161 development Methods 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229920006280 packaging film Polymers 0.000 description 3
- 239000012785 packaging film Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910018502 Ni—H Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Laminated Bodies (AREA)
Abstract
High-barrier dedicated film is packed the present invention relates to a kind of polymer Li-ion battery.The dedicated film has layer structure, and it is followed successively by modified polypropene layer, ultra-low ash content polypropylene layer, PUR film layer, aluminium foil, gluing oxidant layer, nylon layer from inside to outside.Utilized in the present invention increases by one layer of ultra-low ash content polypropylene layer material in aluminium foil layer internal layer; ultra-low ash content polypropylene material has the excellent ability for obstructing gas and liquid; so that the dedicated film has excellent barrier property; the lithium ion battery packaging dedicated film invented simultaneously has easy-formation, high-barrier, excellent ductility and high heat sealability; it is suitably adapted for the packaging applications of polymer Li-ion battery; to polymer Li-ion battery formation safeguard protection, the service life of lithium ion battery is lifted.
Description
Technical field
The present invention relates to battery packaging material field, more particularly to a kind of polymer Li-ion battery packaging high-barrier is special
Film.
Background technology
1992, Sony corporation of Japan invention made the lithium battery of positive pole with the compound containing lithium using Carbon Materials as negative pole,
In charge and discharge process, exist without lithium metal, only lithium ion, started the lithium ion battery epoch, it has reformed mobile electron
The looks of consumer products, it has also become the main power source of moving device.
Meanwhile, the history of battery development is combed, the characteristics of our times battery industry develops is：1. environmental protection battery is fast
Speed development, such as lithium ion battery, Ni-H cell；2. one-shot battery is converted to battery；3. battery is sent out to small, light, thin direction
Exhibition.In commercialization rechargeable battery, lithium ion battery can be realized due to its specific energy highest, special polymer Li-ion battery
The thin type of chargeable battery.Just because of lithium ion battery energy density per unit volume and specific energy are high, and it is chargeable and pollution-free, possess
The big feature of present battery industrial development three, the application to lithium ion battery brings mass market opportunity, in mobile electricity
Words and notebook computer are largely used, and the market share also increases very fast.
In addition, polymer Li-ion battery in lithium ion battery is with its unique advantage in terms of security, can by having
Liquid electrolyte lithium ion battery can be progressively substituted, the main flow as 21 century lithium ion battery opens up the new opplication of battery
Epoch, development prospect is very optimistic.In polymer Li-ion battery application process, the stability of its discharge and recharge is maintained to weigh very much
Will, among these in addition to positive and negative electrode material, polymer dielectric, the packaging film of battery outer layer is to influence its performance most important
One of factor, the packaging film needs good barrier property and decay resistance, in processing encapsulation process, also needed excellent
Heat sealability and ductility can just meet requirement of the polymer Li-ion battery to wrapping film, be a multinomial pass of set
Key matter of science and technology, how to break through solution, the combination property of upgrading lifting wrapping film is lithium battery particularly polymer lithium
Ion battery factory and the packaging film enterprise very concern that forms a complete production network.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of polymer Li-ion battery packaging high-barrier dedicated film.Should
Dedicated film has excellent barrier property, heat sealability and ductility, can meet lithium ion battery to wrapping film material
It can require, the packaging of polymer Li-ion battery can be suitably applied.
The technical scheme is that：A kind of polymer Li-ion battery packs high-barrier dedicated film, including modified poly- third
Alkene layer, ultra-low ash content polypropylene layer, PUR film layer, aluminium foil layer, adhesive layer, nylon layer, the dedicated film from inside to outside according to
The secondary stacking modified polypropene layer, ultra-low ash content polypropylene layer, PUR film layer, aluminium foil layer, adhesive layer, nylon layer, institute
The ash content of coal stated in ultra-low ash content polypropylene layer is less than 10ppm.
As a preferred embodiment of the present invention, the material of the modified polypropene layer is polypropylene, low grey polypropylene, low
One or both of density polyethylene, ultra-low density polyethylene or ethylene-octene copolymer combination of the above, the low ash poly- third
The ash content of coal of alkene should be less than 100ppm.
As a preferred embodiment of the present invention, the ultra-low ash content polypropylene layer thickness is 10-70 μm.
As a preferred embodiment of the present invention, the optional EVA adhesive film of hot melt adhesive film material, PA glue in the PUR film layer
One or both of film, PES glued membranes, PO glued membranes, TPU glued membranes, PE or POE materials combination of the above.
As a preferred embodiment of the present invention, the optional butadiene-styrene rubber of adhesive, polyurethane, nitric acid are fine in the gluing oxidant layer
Dimension element, the solvent type adhesive of polyvinyl acetate, ethylene-vinyl acetate copolymer, the water-soluble of ethylene-acrylic acid copolymer glue
One or more in mixture, vinyl acetate resin, the Emulsion Adhesive of acrylic resin.
After adopting the above technical scheme, the beneficial effects of the invention are as follows：
First, the present invention increases by one layer of ultra-low ash content polypropylene layer material in aluminium foil layer internal layer, adds the dedicated film
Barrier；Secondly, the present invention is using dry method and Re Fa complex technique productions altogether, and processing is simple, and product also has excellent extension
Property and heat sealability.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Wherein, 1 is modified polypropene layer；2 be ultra-low ash content polypropylene layer；3 be PUR film layer；4 be aluminium foil layer；5 are
Adhesive layer；6 be nylon layer.
Embodiment
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
Embodiment
As shown in figure 1, the present invention improves a kind of polymer Li-ion battery packaging high-barrier dedicated film, including it is modified poly-
Propylene layer 1, ultra-low ash content polypropylene layer 2, PUR film layer 3, aluminium foil layer 4, adhesive layer 5, nylon layer 6；The dedicated film by
It is interior to be followed successively by modified polypropene layer 1, ultra-low ash content polypropylene layer 2, PUR film layer 3, aluminium foil layer 4, adhesive layer 5, Buddhist nun to outer
Imperial layer 6.
The material of the modified polypropene layer 1 is polypropylene, low grey polypropylene, low density polyethylene (LDPE), the poly- second of extremely-low density
One or both of alkene or ethylene-octene copolymer combination of the above.Low grey polyacrylic ash in the modified polypropene layer
Content should be less than 100ppm, and temperature limit is at 80 DEG C~350 DEG C, and thickness is 10~100 μm.
The ash content of coal in the ultra-low ash content polypropylene layer 2 is less than 10ppm, and thickness is 10-70 μm.
The optional EVA adhesive film of hot melt adhesive film material, PA glued membranes, PES glued membranes, PO glued membranes, TPU glue in the PUR film layer 3
One or both of film, PE or POE materials combination of the above, temperature limit is 80 DEG C~300 DEG C, and thickness is 10~80 μ
m。
Material carries out chromaking processing in the aluminium foil layer 4, and thickness is 30~60 μm.
The optional butadiene-styrene rubber of adhesive, polyurethane, nitrocellulose, the solvent-borne type of polyvinyl acetate in the adhesive layer 5
Adhesive, ethylene-vinyl acetate copolymer, the aqueous type adhesive of ethylene-acrylic acid copolymer, vinyl acetate resin, propylene
One or more in the Emulsion Adhesive of acid resin.
The thickness of nylon layer 6 is 10~50 μm.
It is a kind of to prepare the method that polymer Li-ion battery packs high-barrier dedicated film, comprise the following steps：
1）It is right to modified polypropene one side, nylon one side and the two-sided carry out plasma sided corona treatment of ultra-low ash content polypropylene
The two-sided carry out chromaking processing of aluminium foil；
2）Hot pressing is carried out between modified polypropene layer and ultra-low ash content polypropylene layer to be combined；
3）Heated in above-mentioned composite correspondence ultra-low ash content outer layer of polypropylene, hot melt adhesive film and aluminium foil, laminated heat
Method is combined；
4）The compound aluminium foil surface, adhesive, nylon carry out dry laminating, form first product；
5）Curing is dried to the first product, polymer Li-ion battery packaging dedicated film finished product is obtained.
The product of the present invention reaches following index by measure：
1. peel strength test：Electrolyte soaks 85 DEG C, 7 days, and film interlaminar strength is more than or equal to 8N/15mm；
2. permeability resistance is tested：Soaked 14 days in 60 DEG C of water, no layering, weight change is less than 0.05 gram.
3. deep drawability is tested, deep-draw depth reaches more than 6mm.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of polymer Li-ion battery packs high-barrier dedicated film, it is characterised in that including modified polypropene layer, ultra low-ash
Part polypropylene layer, PUR film layer, aluminium foil layer, adhesive layer, nylon layer；The dedicated film is followed successively by modified poly- third from inside to outside
Alkene layer, ultra-low ash content polypropylene layer, PUR film layer, aluminium foil layer, adhesive layer, nylon layer, the ultra-low ash content polypropylene layer
In the ash content of coal be less than 10ppm.
2. the polymer Li-ion battery packaging high-barrier dedicated film according to claim 1, it is characterised in that described to change
Property polypropylene layer material be polypropylene, low grey polypropylene, low density polyethylene (LDPE), ultra-low density polyethylene or ethylene-octene it is common
One or both of polymers combination of the above, the low grey polyacrylic the ash content of coal should be less than 100ppm.
3. the polymer Li-ion battery packaging high-barrier dedicated film according to claim 1, it is characterised in that described super
Low ash polypropylene layer thickness is 10-70 μm.
4. the polymer Li-ion battery packaging high-barrier dedicated film according to claim 1, it is characterised in that the heat
In melten gel film layer in the optional EVA adhesive film of hot melt adhesive film material, PA glued membranes, PES glued membranes, PO glued membranes, TPU glued membranes, PE or POE materials
One or more kinds of combinations.
5. the polymer Li-ion battery packaging high-barrier dedicated film according to claim 1, it is characterised in that described viscous
Tie the optional butadiene-styrene rubber of adhesive, polyurethane, nitrocellulose, the solvent type adhesive of polyvinyl acetate, ethyl vinyl acetate in oxidant layer
The aqueous type adhesive of ethylene copolymer, ethylene-acrylic acid copolymer, vinyl acetate resin, the emulsion-type of acrylic resin glue
One or more in mixture.
6. a kind of method that polymer Li-ion battery prepared described in any one of Claims 1 to 5 packs high-barrier dedicated film,
It is characterised in that it includes following steps：
Step 1, it is right to modified polypropene one side, nylon one side and the two-sided carry out plasma sided corona treatment of ultra-low ash content polypropylene
The two-sided carry out chromaking processing of aluminium foil；
Step 2, hot pressing is carried out between modified polypropene layer and ultra-low ash content polypropylene layer to be combined；
Step 3, heated in above-mentioned composite correspondence ultra-low ash content outer layer of polypropylene, hot melt adhesive film and aluminium foil, laminated heat
Method is combined；
Step 4, the compound aluminium foil surface, binding agent, nylon carry out dry laminating, form first product；
Step 5, curing is dried to the first product, obtains polymer Li-ion battery packaging dedicated film finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500240.2A CN105070851B (en) | 2015-08-16 | 2015-08-16 | A kind of polymer Li-ion battery packs high-barrier dedicated film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500240.2A CN105070851B (en) | 2015-08-16 | 2015-08-16 | A kind of polymer Li-ion battery packs high-barrier dedicated film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105070851A CN105070851A (en) | 2015-11-18 |
| CN105070851B true CN105070851B (en) | 2017-10-03 |
Family
ID=54500172
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510500240.2A Active CN105070851B (en) | 2015-08-16 | 2015-08-16 | A kind of polymer Li-ion battery packs high-barrier dedicated film |
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| CN (1) | CN105070851B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397823A (en) * | 2017-08-18 | 2019-03-01 | 刘立健 | A kind of battery case encapsulating material and preparation method thereof |
| CN109037499A (en) * | 2018-07-27 | 2018-12-18 | 杭州中齐新材料科技有限公司 | A kind of new-energy automobile lithium battery flexible packing material |
| CN110400892A (en) * | 2019-06-19 | 2019-11-01 | 华富(江苏)锂电新技术有限公司 | Lithium ion battery flexible package plastic film of embedded heating function and preparation method thereof |
| CN110311165A (en) * | 2019-06-19 | 2019-10-08 | 华富(江苏)锂电新技术有限公司 | A kind of rectangular lithium ion battery and its preparation process with heating function |
| CN110311166A (en) * | 2019-06-19 | 2019-10-08 | 华富(江苏)锂电新技术有限公司 | A kind of column lithium ion battery and its preparation process with heating function |
| CN110615181B (en) * | 2019-10-14 | 2021-05-28 | 宁波瑞成包装材料有限公司 | High-temperature-resistant lithium battery packaging film and preparation method thereof |
| JP2023540727A (en) * | 2021-04-15 | 2023-09-26 | エルジー エナジー ソリューション リミテッド | secondary battery |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001045183A1 (en) * | 1999-12-17 | 2001-06-21 | Dai Nippon Printing Co., Ltd | Packaging material for polymer cell and method for producing the same |
| JP2001229885A (en) * | 2000-02-16 | 2001-08-24 | Dainippon Printing Co Ltd | Packaging material for polymer battery and method of manufacturing the same |
| CN201278351Y (en) * | 2008-08-20 | 2009-07-22 | 沈道付 | Lithium ion battery packaging film |
| CN101640255B (en) * | 2009-08-10 | 2013-04-03 | 沈道付 | Lithium ion battery packaging film and manufacturing method thereof |
| JP5999674B2 (en) * | 2010-02-12 | 2016-09-28 | 興人フィルム＆ケミカルズ株式会社 | Biaxially stretched nylon film for cold forming |
| CN102328779B (en) * | 2011-06-14 | 2014-01-29 | 刘继福 | High-barrier layer flexible packaging film for isolating contents of polymer lithium battery |
| CN205004358U (en) * | 2015-08-16 | 2016-01-27 | 苏州锂盾储能材料技术有限公司 | Polymer lithium ion battery packing high resistant separates special membrane |
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Address after: No. 759, Zhizhou Avenue, Huaxi Street, Changxing County, Huzhou City, Zhejiang Province 313000 Patentee after: Zhejiang Lidun Energy Storage Material Technology Co.,Ltd. Address before: No. 6, Anmin Road, East Bridge, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215152 Patentee before: SUZHOU LIDUN ENERGY STORAGE MATERIAL TECHNOLOGY Co.,Ltd. |