CN205004358U - Polymer lithium ion battery packing high resistant separates special membrane - Google Patents
Polymer lithium ion battery packing high resistant separates special membrane Download PDFInfo
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- CN205004358U CN205004358U CN201520614057.0U CN201520614057U CN205004358U CN 205004358 U CN205004358 U CN 205004358U CN 201520614057 U CN201520614057 U CN 201520614057U CN 205004358 U CN205004358 U CN 205004358U
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- ion battery
- lithium ion
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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
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- Laminated Bodies (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a polymer lithium ion battery packing high resistant separates special membrane. This special use membrane has a lamellar structure, and it is by interior modified polypropylene layer, ultralow grey level polypropylene layer, hot -melt adhesive film layer, aluminium foil, adhesive layer, the nylon layer of being in proper order outside to. The utility model discloses well utilization increases the ultralow grey level polypropylene layer material of one deck on in place layer of aluminium foil, and ultralow grey level polypropylene materials has the excellent separation gas and the ability of liquid to make this special use membrane have excellent barrier properties, simultaneously the special membrane of lithium ion battery packing have that easy shaping, high resistant separate, excellent ductility and high heat sealability, the packing that can be suitable for polymer lithium ion battery is used, forms safety protection to polymer lithium ion battery, promotes lithium ion battery's life.
Description
Technical field
The utility model relates to battery packaging material field, particularly a kind of polymer Li-ion battery packaging high-barrier dedicated film.
Background technology
1992, Sony corporation of Japan invention is negative pole with Carbon Materials, to make the lithium battery of positive pole containing the compound of lithium, in charge and discharge process, there is no lithium metal, only have lithium ion, start the lithium ion battery epoch, it has reformed the looks of mobile electron consumer products, has become the main power source of moving device.
Meanwhile, the history of combing battery development, the feature of our times battery industry development is: 1. environmental protection battery develops rapidly, as lithium ion battery, Ni-H cell etc.; 2. primary cell transforms to storage battery; 3. battery is to little, light, thin future development.In commercialization rechargeable battery, lithium ion battery due to its specific energy the highest, special polymer Li-ion battery can realize the thin type of chargeable battery.Just because of lithium ion battery volumetric specific energy and specific energy high, chargeable and pollution-free, possesses the large feature of present battery industrial development three, mass market opportunity is brought to the application of lithium ion battery, use in a large number at mobile phone and notebook computer, the market share also increases quickly.
In addition, polymer Li-ion battery in lithium ion battery, with its unique advantage in fail safe, likely progressively will substitute liquid electrolyte lithium-ion battery, become the main flow of 21 century lithium ion battery, open up the new opplication epoch of storage battery, development prospect is very optimistic.In polymer Li-ion battery application process, the stability maintaining its discharge and recharge is extremely important, wherein just removing at this, negative electrode material, outside polymer dielectric, the outer field packaging film of battery affects one of most important factor of its performance, this packaging film needs good barrier property and decay resistance, in processing encapsulation process, also need excellent heat sealability and ductility just can meet the requirement of polymer Li-ion battery to wrapping film, it is a multinomial crucial matter of science and technology of set, how to break through solution, it is the lithium battery particularly problem be extremely concerned about of polymer Li-ion battery factory and the packaging film enterprise that forms a complete production network that upgrading promotes the combination property of wrapping film.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of polymer Li-ion battery to pack high-barrier dedicated film.This dedicated film has excellent barrier property, heat sealability and ductility, can meet lithium ion battery to wrapping film material performance requirement, can be applicable to the packaging being applied to polymer Li-ion battery.
The technical solution of the utility model is: a kind of polymer Li-ion battery packaging high-barrier dedicated film, comprise modified polypropene layer, ultra low-ash polypropylene layer, PUR rete, aluminium foil layer, adhesive layer, nylon layer, described dedicated film stacks gradually described modified polypropene layer, ultra low-ash polypropylene layer, PUR rete, aluminium foil layer, adhesive layer, nylon layer from inside to outside.
As a kind of preferred version of the present utility model, the material of described modified polypropene layer is one or more combinations in polypropylene, low grey polypropylene, low density polyethylene (LDPE), ultra-low density polyethylene or ethylene-octene copolymer.
As a kind of preferred version of the present utility model, in described modified polypropene layer, the polyacrylic gray scale content of low ash should be less than 100ppm.
As a kind of preferred version of the present utility model, the gray scale content in described ultra low-ash polypropylene layer is lower than 10ppm, and thickness is 10-70 μm.
As a kind of preferred version of the present utility model, one or more combinations in described PUR rete in the optional EVA adhesive film of hot melt adhesive film material, PA glued membrane, PES glued membrane, PO glued membrane, TPU glued membrane, PE or POE material.
As a kind of preferred version of the present utility model, the solvent type adhesive of the optional butadiene-styrene rubber of adhesive, polyurethane, celluloid, polyvinyl acetate in described adhesive layer, the aqueous type adhesive of ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, one or more in the Emulsion Adhesive of vinyl acetate resin, acrylic resin.
After adopting technique scheme, the beneficial effects of the utility model are:
First, the utility model increases one deck ultralow gray scale polypropylene layer material at aluminium foil layer internal layer, adds the barrier of this dedicated film; Secondly, the utility model adopts dry method and Re Fa complex technique production altogether, and processing is simple, and product also has excellent ductility and heat sealability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is modified polypropene layer; 2 is low gray scale polypropylene layer; 3 is PUR rete; 4 is aluminium foil layer; 5 is adhesive layer; 6 is nylon layer.
Embodiment
In order to make the purpose of this utility model and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
As shown in Figure 1, the utility model improves a kind of polymer Li-ion battery packaging high-barrier dedicated film, comprises modified polypropene layer 1, low grey polypropylene layer 2, PUR rete 3, aluminium foil layer 4, adhesive layer 5, nylon layer 6; Described dedicated film is followed successively by modified polypropene layer 1, low grey polypropylene layer 2, PUR rete 3, aluminium foil layer 4, adhesive layer 5, nylon layer 6 from inside to outside.
The material of described modified polypropene layer 1 is one or more combinations in polypropylene, low grey polypropylene, low density polyethylene (LDPE), ultra-low density polyethylene or ethylene-octene copolymer.In described modified polypropene layer, the polyacrylic gray scale content of low ash should be less than 100ppm, and temperature limit is at 80 DEG C ~ 350 DEG C, and thickness is 10 ~ 100 μm.
Gray scale content in described ultra low-ash polypropylene layer 2 is lower than 10ppm, and thickness is 10-70 μm.
One or more combinations in described PUR rete 3 in the optional EVA adhesive film of hot melt adhesive film material, PA glued membrane, PES glued membrane, PO glued membrane, TPU glued membrane, PE or POE material, temperature limit is 80 DEG C ~ 300 DEG C, and thickness is 10 ~ 80 μm.
In described aluminium foil layer 4, material carries out chromaking process, and thickness is 30 ~ 60 μm.
The solvent type adhesive of the optional butadiene-styrene rubber of adhesive, polyurethane, celluloid, polyvinyl acetate in described adhesive layer 5, the aqueous type adhesive of ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, one or more in the Emulsion Adhesive of vinyl acetate resin, acrylic resin.
Described nylon layer 6 thickness is 10 ~ 50 μm.
Product of the present utility model reaches following index through mensuration:
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 test: soak 14 days in the water of 60 DEG C, without layering, weight change is less than 0.05 gram.
3. deep drawability test, the deep-draw degree of depth reaches more than 6mm.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (1)
1. a polymer Li-ion battery packaging high-barrier dedicated film, is characterized in that, comprise modified polypropene layer, ultralow gray scale polypropylene layer, PUR rete, aluminium foil layer, adhesive layer, nylon layer; Described dedicated film is followed successively by modified polypropene layer, ultralow gray scale polypropylene layer, PUR rete, aluminium foil layer, adhesive layer, nylon layer from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614057.0U CN205004358U (en) | 2015-08-16 | 2015-08-16 | Polymer lithium ion battery packing high resistant separates special membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614057.0U CN205004358U (en) | 2015-08-16 | 2015-08-16 | Polymer lithium ion battery packing high resistant separates special membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004358U true CN205004358U (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520614057.0U Withdrawn - After Issue CN205004358U (en) | 2015-08-16 | 2015-08-16 | Polymer lithium ion battery packing high resistant separates special membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN205004358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070851A (en) * | 2015-08-16 | 2015-11-18 | 苏州锂盾储能材料技术有限公司 | Special high-obstruction packaging film for polymer lithium ion batteries |
-
2015
- 2015-08-16 CN CN201520614057.0U patent/CN205004358U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070851A (en) * | 2015-08-16 | 2015-11-18 | 苏州锂盾储能材料技术有限公司 | Special high-obstruction packaging film for polymer lithium ion batteries |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20171003 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20171003 |