CN1785758A - Lithium battery flexible packaging film and its manufacturing method - Google Patents
Lithium battery flexible packaging film and its manufacturing method Download PDFInfo
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- CN1785758A CN1785758A CN 200410089189 CN200410089189A CN1785758A CN 1785758 A CN1785758 A CN 1785758A CN 200410089189 CN200410089189 CN 200410089189 CN 200410089189 A CN200410089189 A CN 200410089189A CN 1785758 A CN1785758 A CN 1785758A
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- Prior art keywords
- layer
- resin
- lithium battery
- hot sealing
- flexible packaging
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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.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 229920006280 packaging film Polymers 0.000 title claims description 33
- 239000012785 packaging film Substances 0.000 title claims description 33
- 238000009459 flexible packaging Methods 0.000 title claims description 31
- 239000011347 resin Substances 0.000 claims abstract description 90
- 229920005989 resin Polymers 0.000 claims abstract description 90
- 239000000126 substance Substances 0.000 claims abstract description 45
- 239000005030 aluminium foil Substances 0.000 claims abstract description 41
- -1 polypropylene Polymers 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000004743 Polypropylene Substances 0.000 claims abstract description 18
- 229920001155 polypropylene Polymers 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 184
- 239000004925 Acrylic resin Substances 0.000 claims description 24
- 229920000178 Acrylic resin Polymers 0.000 claims description 24
- 239000004698 Polyethylene Substances 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 23
- 229920000573 polyethylene Polymers 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 20
- 230000001070 adhesive effect Effects 0.000 claims description 20
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 20
- 229920002554 vinyl polymer Polymers 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000011229 interlayer Substances 0.000 claims description 11
- 238000006664 bond formation reaction Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000071 blow moulding Methods 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims 1
- 239000004840 adhesive resin Substances 0.000 abstract 2
- 229920006223 adhesive resin Polymers 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 229920013716 polyethylene resin Polymers 0.000 abstract 1
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The present invention relates to a lithium cell flexible package film and its production method. It is composed of 7 layers of base layer, adhesive resin layer, chemical conversion treatment layer, aluminium foil layer, chemical conversion treatment layer, adhesive resin layer and thermal sealing layer, in which the thermal sealing layer is multi-layer coextrusion structure, and is formed from at least two layers of resin, in which at least one layer is polyethylene resin, and at least one layer is polypropylene resin. Said invention also provides the concrete steps of its production method.
Description
Technical field
The present invention relates to a kind of composite soft packaging film and manufacture method thereof, particularly a kind of suitable cold stamping shaped lithium battery flexible packaging film.
Background technology
With the immediate prior art of the present invention be Janpanese Printing Co., Ltd on December 18th, 2000 in Chinese patents, application number is: 00806337.0, patent name is packaging material for polymer cell and manufacture method thereof, it discloses a kind of lithium battery flexible packaging film, form by basalis/bonding resin layer/chemical treatment layer/aluminium foil layer/chemical treatment layer/bonding resin layer/hot sealing layer, and innermost layer is that hot sealing layer is made of simple layer, described innermost layer is made of casting type polypropylene or polyethylene, because polyethylene and polypropylene belong to two kinds of different types of polymers, both different in kinds, even at high temperature also very difficult together compatible, the interface is apparent in view.So binder resin can only be selected sour modified polypropylene resin for use when hot sealing layer is polypropylene.Have following shortcoming like this: one, because sour modified polypropylene resin melt strength is little, so and molten refer to less processing difficulties; Two, feed stock cost height.
Summary of the invention
Content of the present invention provides the lithium battery flexible packaging film and the manufacture method thereof of a kind of low cost and easily processing.
For realizing above purpose, technical scheme of the present invention provides a kind of lithium battery flexible packaging film, by basalis, form for seven layers for doing multiple adhesive phase, chemical reversion processing layer, aluminium foil layer, chemical reversion processing layer, bonding resin layer and hot sealing layer, it is characterized in that, described hot sealing layer is multi-layer co-extruded structure, at least be made up of two layers of resin, one deck is a poly-vinyl resin at least, and one deck is an acrylic resin at least.
The another kind of lithium battery flexible packaging film that technical scheme of the present invention provides, form for six layers by basalis, dried multiple adhesive phase, aluminium foil layer, chemical reversion processing layer, bonding resin layer and hot sealing layer, it is characterized in that, described hot sealing layer is multi-layer co-extruded structure, at least form by two layers of resin, at least one deck is a poly-vinyl resin, and one deck is an acrylic resin at least.
It is polyethylene that described hot sealing layer is used for compound one side, and the another side that is used to seal is a polypropylene, and wherein the thickness of polyethylene layer is at least the 2-80 micron, and wherein the thickness of polypropylene layer is at least the 2-80 micron.
Described hot sealing layer can also be formed by adding at least one deck interlayer resin between polyethylene layer and the polypropylene layer.
Described interlayer resin is maleic anhydride modified poly-mer, perhaps the resin of the compound of the modifier of acrylic resin, poly-vinyl resin, these resins and these resins formation.
Described bonding resin layer is at least a resin in the modifier of the copolymer of copolymer, ethene and methacrylic acid derivative of sour modified polyvinyl resin, its polymers of ethylene-acrylic acid, metal ion crosslinked poly-vinyl resin, ethene and acrylic acid derivative and these resins.
The manufacture method of first kind of lithium battery flexible packaging film is characterized in that it comprises the following steps:
(1) with poly-vinyl resin, acrylic resin, moulding hot sealing layer once on the coextrusion casting machine;
(2) two-sided or single face carries out chromaking and handles and form and the chemical reversion processing layer with aluminium foil;
(3) carry out compound with doing multiple adhesive phase basalis and aluminium foil layer.
(4) bonding resin layer is extruded compound, with the polyethylene face and the bonding formation product of chemical reversion processing layer of hot sealing layer.
The manufacture method of second kind of lithium battery flexible packaging film is characterized in that it comprises the following steps:
(1) between polyethylene layer and polypropylene layer, adds one deck interlayer resin at least, moulding hot sealing layer once on the coextrusion casting machine;
(2) two-sided or single face carries out chromaking and handles and form and the chemical reversion processing layer with aluminium foil;
(3) carry out compound with doing multiple adhesive phase basalis and aluminium foil layer.
(4) bonding resin layer is extruded compound, with the polyethylene face and the bonding formation product of chemical reversion processing layer of hot sealing layer.
Hot sealing layer described in first kind and the second kind of lithium battery packaging film manufacture method also can adopt multi-layer co-extruded blow moulding production.
The manufacture method of the third lithium battery flexible packaging film is characterized in that it comprises the following steps:
(1) two-sided or single face carries out chromaking and handles and form and the chemical reversion processing layer with aluminium foil;
(2) carry out compound with doing multiple adhesive phase basalis and aluminium foil layer.
(3) with bonding resin layer resin, poly-vinyl resin, acrylic resin by multi-layer co-extruded compound and the bonding formation product of chemical reversion processing layer.
The present invention selects a kind of modified polyethylene material in order to improve both compatibilities, makes its microcosmic molecular structure close with polypropylene microcosmic molecular structure, realizes that in coextrusion is produced both is compatible; The present invention also provides another method, adds one deck interlayer at least between polyethylene layer and polypropylene layer.Each interlayer resin and it bonding both sides resin compatibility is all arranged.By interlayer poly-vinyl resin and acrylic resin are bonded together, sour modified polyvinyl resin is than hanging down more than 20% on the sour modified polypropylene resin comparative price.
Advantage of the present invention is that Costco Wholesale is low, and handling ease.
Description of drawings
Fig. 1 is basalis/dried multiple lithium battery flexible packaging film scheme drawing that adhesives/chemical treatment layer/aluminium foil layer/chemical treatment layer/bonding resin layer/hot sealing layer is made;
Fig. 2 is basalis/dried multiple lithium battery flexible packaging film scheme drawing that adhesives/aluminium foil layer/chemical treatment layer/bonding resin layer/hot sealing layer is made;
Fig. 3 is basalis/dried multiple lithium battery flexible packaging film scheme drawing that adhesives/chemical treatment layer/aluminium foil layer/chemical treatment layer/bonding resin layer/poly-vinyl resin layer/acrylic resin layer is made.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail:
As shown in Figure 1, be basalis/dried multiple lithium battery flexible packaging film scheme drawing that adhesives/chemical treatment layer/aluminium foil layer/chemical treatment layer/bonding resin layer/hot sealing layer is made; Described lithium battery flexible packaging film is made up of for 6 seven layers basalis 1, dried multiple adhesives 2, chemical reversion processing layer 3, aluminium foil layer 4, chemical reversion processing layer 3, bonding resin layer 5 and hot sealing layer.
Described basalis 1, aluminium foil layer 4, chemical treatment layer 3 can carry out processed by existing method; Basalis 1 is selected polyamide for use, and aluminium foil layer 4 is selected the soft aluminium foil of 45 micron thickness for use, and it is polyethylene that described hot sealing layer 6 is used for compound one side, selects the metallocene PE resin for use, and the another side that is used to seal is an acrylic resin; Bonding resin layer 5 is selected acrylic acid modified polyethylene for use.
The manufacture method of lithium battery flexible packaging film comprises the following steps:
(1) with the metallocene PE resin as composite surface, acrylic resin is as heat cover, once moulding on the coextrusion casting machine, and wherein the metallocene PE resin thickness is 10 microns, acrylic resin thickness is 20 microns, and the film gross thickness of production is 30 microns a hot sealing layer 6;
(2) two-sided or single face carries out chromaking and handles and form and chemical reversion processing layer 3 with aluminium foil;
(3) soft aluminium foil 4 and the 25 microns dried multiple adhesivess of polyamide 1 usefulness with 45 micron thickness carry out compound as bonding resin layer 2.
(4) extrude as bonding resin layer 5 with acrylic acid modified polyethylene compound, with hot sealing layer 6 polyethylene faces and chemical reversion processing layer 3 bonding formation products.
As shown in Figure 2, be basalis/dried multiple lithium battery flexible packaging film scheme drawing that adhesives/aluminium foil layer/chemical treatment layer/bonding resin layer/hot sealing layer is made, form for 6 six layers by basalis 1, dried multiple adhesives 2, aluminium foil layer 4, chemical reversion processing layer 3, bonding resin layer 5 and hot sealing layer.
The selection of material is the same with embodiment 1, and described hot sealing layer 6 is multi-layer co-extruded structure, and one deck is a poly-vinyl resin, and one deck is the acrylic resin layer, adds one deck interlayer resin between poly-vinyl resin and the acrylic resin.
The manufacture method of lithium battery flexible packaging film is characterized in that it comprises the following steps:
(1) with the metallocene PE resin as composite surface, acrylic resin is as heat cover, add one deck interlayer resin between metallocene PE resin and the acrylic resin, with multi-layer co-extruded blow moulding one-shot forming, wherein the metallocene PE resin thickness is 10 microns, acrylic resin thickness is 20 microns, and the film gross thickness of production is 30 microns a hot sealing layer 6;
(2) two-sided or single face carries out chromaking and handles and form and chemical reversion processing layer 3 with aluminium foil;
(3) soft aluminium foil 4 and the 25 microns dried multiple adhesivess 2 of polyamide 1 usefulness with 45 micron thickness carry out compound
(4) extrude as bonding resin layer 5 with acrylic acid modified polyethylene compound, with hot sealing layer 6 polyethylene faces and chemical reversion processing layer 3 bonding formation products.
As shown in Figure 3, be basalis/dried multiple lithium battery flexible packaging film scheme drawing that adhesives/chemical treatment layer/aluminium foil layer/chemical treatment layer/bonding resin layer/poly-vinyl resin layer/acrylic resin layer is made; Described lithium battery flexible packaging film is made up of for 7 eight layers basalis 1, dried multiple adhesives 2, chemical reversion processing layer 3, aluminium foil layer 4, chemical reversion processing layer 3, bonding resin layer 5, poly-vinyl resin layer 6 and acrylic resin layer.
Described basalis 1, aluminium foil layer 4, chemical treatment layer 3 can carry out processed by existing method; Basalis 1 is selected polyamide for use, and aluminium foil layer 4 is selected the soft aluminium foil of 45 micron thickness for use; Bonding resin layer 5 is selected acrylic acid modified polyethylene for use; The poly-vinyl resin layer is selected the metallocene PE resin for use, and the acrylic resin layer is selected the Co-polypropylene resin for use.
The manufacture method of lithium battery flexible packaging film comprises the following steps:
(1) the two-sided chromaking of carrying out of aluminium foil is handled formation and chemical reversion processing layer 3;
(2) basalis 1 and aluminium foil layer 4 being used for multiple adhesive phase 2 carries out compound.
(3) with bonding resin layer 5 resins, poly-vinyl resin 6, acrylic resin 7 by multi-layer co-extruded compound and chemical reversion processing layer 3 bonding formation products.
Measuring method:
After packing is finished, place the 60-90%RH climatic chamber to place 7 days in sample, confirm the whether layering of aluminium foil and internal layer.
Sample was placed after 7 days among the sample embodiment after tested, and aluminium foil and internal layer do not have layering.
Claims (10)
1. lithium battery flexible packaging film, form for (6) seven layers by basalis (1), dried multiple adhesive phase (2), chemical reversion processing layer (3), aluminium foil layer (4), chemical reversion processing layer (3), bonding resin layer (5) and hot sealing layer, it is characterized in that, described hot sealing layer (6) is multi-layer co-extruded structure, at least form by two layers of resin, at least one deck is a poly-vinyl resin, and one deck is an acrylic resin at least.
2. lithium battery flexible packaging film, form for (6) six layers by basalis (1), dried multiple adhesive phase (2), aluminium foil layer (4), chemical reversion processing layer (3), bonding resin layer (5) and hot sealing layer, it is characterized in that, described hot sealing layer (6) is multi-layer co-extruded structure, at least form by two layers of resin, at least one deck is a poly-vinyl resin, and one deck is an acrylic resin at least.
3. a kind of lithium battery flexible packaging film according to claim 1 and 2, it is characterized in that, it is polyethylene that described hot sealing layer (6) is used for compound one side, the another side that is used to seal is a polypropylene, wherein the thickness of polyethylene layer is at least the 2-80 micron, and wherein the thickness of polypropylene layer is at least the 2-80 micron.
4. a kind of lithium battery flexible packaging film according to claim 1 and 2 is characterized in that, described hot sealing layer (6) is formed by adding at least one deck interlayer resin between polyethylene layer and the polypropylene layer.
5. a kind of lithium battery flexible packaging film according to claim 4, it is characterized in that, described interlayer resin is maleic anhydride modified poly-mer, perhaps the resin of the compound of the modifier of acrylic resin, poly-vinyl resin, these resins and these resins formation.
6. a kind of lithium battery flexible packaging film according to claim 1 and 2, it is characterized in that described bonding resin layer (5) is at least a resin in the modifier of the copolymer of copolymer, ethene and methacrylic acid derivative of sour modified polyvinyl resin, ethylene-acrylic acid copolymer, metal ion crosslinked poly-vinyl resin, ethene and acrylic acid derivative and these resins.
7. the manufacture method of a lithium battery flexible packaging film is characterized in that, it comprises the following steps:
(1) with poly-vinyl resin, acrylic resin, moulding hot sealing layer (6) once on the coextrusion casting machine;
(2) two-sided or single face carries out chromaking and handles and form chemical reversion processing layer (3) with aluminium foil;
(3) carry out compound with doing multiple adhesive phase (2) basalis (1) and aluminium foil layer (4).
(4) bonding resin layer (5) is extruded compound, with the polyethylene face and the bonding formation product of chemical reversion processing layer (3) of hot sealing layer (6).
8. the manufacture method of a lithium battery flexible packaging film is characterized in that, it comprises the following steps:
(1) between polyethylene layer and polypropylene layer, adds one deck interlayer resin at least, moulding hot sealing layer (6) once on the coextrusion casting machine;
(2) two-sided or single face carries out chromaking and handles and form and chemical reversion processing layer (3) with aluminium foil;
(3) carry out compound with doing multiple adhesive phase (2) basalis (1) and aluminium foil layer (4).
(4) bonding resin layer (5) is extruded compound, with the polyethylene face and the bonding formation product of chemical reversion processing layer (3) of hot sealing layer (6).
9. according to the manufacture method of claim 7 or 8 described a kind of lithium battery flexible packaging films, it is characterized in that described hot sealing layer (6) also can adopt multi-layer co-extruded blow moulding production.
10. the manufacture method of a lithium battery flexible packaging film is characterized in that, it comprises the following steps:
(1) two-sided or single face carries out chromaking and handles and form and chemical reversion processing layer (3) with aluminium foil;
(2) carry out compound with doing multiple adhesive phase (2) basalis (1) and aluminium foil layer (4).
(3) with bonding resin layer (5) resin, poly-vinyl resin (6), acrylic resin (7) by multi-layer co-extruded compound and the bonding formation product of chemical reversion processing layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410089189 CN1785758A (en) | 2004-12-07 | 2004-12-07 | Lithium battery flexible packaging film and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410089189 CN1785758A (en) | 2004-12-07 | 2004-12-07 | Lithium battery flexible packaging film and its manufacturing method |
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| CN1785758A true CN1785758A (en) | 2006-06-14 |
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Family Applications (1)
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| CN 200410089189 Pending CN1785758A (en) | 2004-12-07 | 2004-12-07 | Lithium battery flexible packaging film and its manufacturing method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709498A (en) * | 2012-05-30 | 2012-10-03 | 东莞市比比克电子科技有限公司 | Aluminum-plastic packaging film and lithium ion battery manufactured by using same |
| CN102703010A (en) * | 2012-05-11 | 2012-10-03 | 华东理工大学 | Epoxy adhesion for lithium battery flexible package and lithium battery flexible package material |
| CN103400946A (en) * | 2013-08-08 | 2013-11-20 | 河南李烨包装科技有限公司 | Special flexible packaging film for lithium-ion power battery and energy storage lithium battery and preparation method thereof |
| CN103395244A (en) * | 2013-08-08 | 2013-11-20 | 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 |
| CN103407140A (en) * | 2013-07-26 | 2013-11-27 | 常州大学 | Preparation method for PP/PE/PE three-layer compound microporous film |
| CN104393203A (en) * | 2014-12-10 | 2015-03-04 | 连云港德立信包装材料有限公司 | Lithium battery aluminum plastic packaging film adopting aluminum foil single-surface nano process technology |
| CN104485430A (en) * | 2014-12-11 | 2015-04-01 | 乐凯胶片股份有限公司 | Soft package membrane for lithium battery |
| CN106207021A (en) * | 2016-08-30 | 2016-12-07 | 上海紫江新材料科技有限公司 | The lithium battery flexible packaging film that a kind of heat pressing process is made |
| CN107189565A (en) * | 2017-05-19 | 2017-09-22 | 浙江帝恒实业有限公司 | A kind of preparation method of corrosion-resisting lithium battery shell |
| CN110815837A (en) * | 2018-08-08 | 2020-02-21 | 韩田大学校产学协力团 | Apparatus for manufacturing aluminum soft package film for small secondary battery and soft package film manufactured thereby |
-
2004
- 2004-12-07 CN CN 200410089189 patent/CN1785758A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703010A (en) * | 2012-05-11 | 2012-10-03 | 华东理工大学 | Epoxy adhesion for lithium battery flexible package and lithium battery flexible package material |
| CN102703010B (en) * | 2012-05-11 | 2013-12-25 | 华东理工大学 | Epoxy adhesion for lithium battery flexible package and lithium battery flexible package material |
| CN102709498A (en) * | 2012-05-30 | 2012-10-03 | 东莞市比比克电子科技有限公司 | Aluminum-plastic packaging film and lithium ion battery manufactured by using same |
| CN103407140A (en) * | 2013-07-26 | 2013-11-27 | 常州大学 | Preparation method for PP/PE/PE three-layer compound microporous film |
| 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 |
| CN103395244A (en) * | 2013-08-08 | 2013-11-20 | 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 |
| CN103400946B (en) * | 2013-08-08 | 2015-06-03 | 河南李烨包装科技有限公司 | Special flexible packaging film for lithium-ion power battery and energy storage lithium battery and preparation method thereof |
| CN103400946A (en) * | 2013-08-08 | 2013-11-20 | 河南李烨包装科技有限公司 | Special flexible packaging film for lithium-ion power battery and energy storage lithium battery and preparation method thereof |
| CN104393203A (en) * | 2014-12-10 | 2015-03-04 | 连云港德立信包装材料有限公司 | Lithium battery aluminum plastic packaging film adopting aluminum foil single-surface nano process technology |
| CN104485430A (en) * | 2014-12-11 | 2015-04-01 | 乐凯胶片股份有限公司 | Soft package membrane for lithium battery |
| CN106207021A (en) * | 2016-08-30 | 2016-12-07 | 上海紫江新材料科技有限公司 | The lithium battery flexible packaging film that a kind of heat pressing process is made |
| CN107189565A (en) * | 2017-05-19 | 2017-09-22 | 浙江帝恒实业有限公司 | A kind of preparation method of corrosion-resisting lithium battery shell |
| CN110815837A (en) * | 2018-08-08 | 2020-02-21 | 韩田大学校产学协力团 | Apparatus for manufacturing aluminum soft package film for small secondary battery and soft package film manufactured thereby |
| CN110815837B (en) * | 2018-08-08 | 2021-09-07 | 拓普恩西株式会社 | Apparatus for manufacturing aluminum soft package film for small secondary battery and soft package film manufactured thereby |
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Owner name: SHANGHAI ZIJIANG COLOR PRINTING PACKING CO., LTD. Free format text: FORMER OWNER: SHEN JUNPING Effective date: 20070921 |
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