CN205004357U - Polymer lithium ion battery packs mantle - Google Patents

Polymer lithium ion battery packs mantle Download PDF

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Publication number
CN205004357U
CN205004357U CN201520614044.3U CN201520614044U CN205004357U CN 205004357 U CN205004357 U CN 205004357U CN 201520614044 U CN201520614044 U CN 201520614044U CN 205004357 U CN205004357 U CN 205004357U
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China
Prior art keywords
ion battery
layer
mantle
utility
model
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CN201520614044.3U
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Chinese (zh)
Inventor
章结兵
谢凤秀
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Zhejiang Lidun Energy Storage Material Technology Co ltd
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Suzhou Lidun Energy Storage Material Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The utility model relates to a polymer lithium ion battery packs mantle, including polypropylene coating, aluminium foil layer, adhesive layer, modified nylon layer, this membrane has a lamellar structure, the packing mantle is by interior polypropylene coating, aluminium foil layer, adhesive layer, the modified nylon layer of being in proper order outside to. The utility model discloses an original polypropylene resin of polypropylene coating replacement, the process efficiency of can effectively improving production, the technology is simple, and product comprehensive properties is good, can satisfy the requirement of polymer lithium ion battery packaging film.

Description

A kind of polymer Li-ion battery packaging mantle
Technical field
The utility model relates to battery packaging material field, particularly a kind of polymer Li-ion battery packaging mantle.
Background technology
As everyone knows, lithium ion battery is widely used in every field.Lithium ion battery is different according to its all electrolyte, can be divided into liquid lithium ionic cell (LIB) and polymer Li-ion battery (PLB) or plastic lithium-ion battery (PLB).Mainly electrolyte is different in the difference of polymer Li-ion battery and liquid lithium ionic cell, positive and negative electrode material all can adopt same material, as optional in positive electrode cobalt acid lithium, LiMn2O4, ternary material and LiFePO 4 material, the optional graphite of negative pole, liquid lithium ionic cell uses liquid electrolyte, polymer lithium ion battery electrolyte is solid polymer electrolyte, and this electrolyte can be dry state also can be colloidal state, and now applying more is gel-form solid polymer electrolyte.
Gel-form solid polymer electrolyte lithium ion battery by adding the additives such as plasticizer in solid polymer electrolyte, thus reaches raising ionic conductivity, ensures that battery can use at normal temperatures.Polymer Li-ion battery is compared with liquid lithium ionic cell, polymer Li-ion battery has can thin type, the advantages such as arbitrary areaization and arbitrary shape, miniaturization can be had, thin type, light-weighted feature, when external packing adopts polymer Li-ion battery flexible packaging film, the specific capacity of battery is obviously improved, the quality of polymer Li-ion battery wrapping film directly affects the specific capacity of battery, usual wrapping film need have excellent barrier, extension mouldability, the correlated performances such as heat sealability and solvent resistant dissolving, how to improve manufacturing process and the technology of aluminum plastic film, the quality level improving aluminum plastic film is the technical problem that lithium ion battery external packing industry is extremely concerned about always.
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 mantle.This packaging mantle has excellent barrier property, heat sealability and ductility, can meet lithium ion battery to wrapping film material performance requirement, and this mantle manufacturing process is simple simultaneously, 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 mantle, comprise polypropylene coating, aluminium foil layer, adhesive layer, modification of nylon layer, this film has layer structure, and described packaging mantle is followed successively by polypropylene coating, aluminium foil layer, adhesive layer, modification of nylon layer from inside to outside.
As a kind of preferred version of the present utility model, in described polypropylene coating, material is made up of polypropylene, adhesive solidification agent and vehicle substance.
As a kind of preferred version of the present utility model, the thickness of described polypropylene coating is 1-20 μm.
As a kind of preferred version of the present utility model, in described polypropylene coating, polypropylene and curing agent and solvent ratios are 90/10-50/50.
As a kind of preferred version of the present utility model, in described polypropylene coating, polypropylene is polypropylene micro mist, and particle diameter is 1-100 μm.
As a kind of preferred version of the present utility model, in described polypropylene coating, curing agent is one in epoxies curing agent, polyisocyanates, polyamine, polyhydric phenols, acid anhydrides, amino resins, hydroxyalkyl amide, oxazoline or combination.
As a kind of preferred version of the present utility model, in described polypropylene coating solvent be that ethyl acetate, dimethylbenzene, toluene, chloroform, trichloro-benzenes, decahydronaphthalenes, tetrahydro are resistance to, one in cyclohexane, DBP, DOP, ethylene glycol, ortho-xylene, oxolane or combination.
As a kind of preferred version of the present utility model, in described modification of nylon layer, material is by the one or more combination in nylon and PET, PP, PE, POE, and nylon and material modified mixed and modified ratio are 99/1-10/90.
After adopting technique scheme, the beneficial effects of the utility model are: first, and the utility model adopts polypropylene coating to replace acrylic resin, is compound to aluminium foil surface technique simpler; Secondly, in the utility model, polypropylerie paint is compared with acrylic resin, and manufacture process does not need interval roll change, one-step synthesis, and defective goods rate reduces greatly, can save raw material and product cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is polypropylene coating; 2 aluminium foil layers; 3 is adhesive layer; 4 is modification of nylon layer.
Embodiment
Below in conjunction with embodiment, illustrate the utility model further.
Embodiment
As shown in Figure 1, the utility model provides a kind of polymer Li-ion battery packaging mantle, comprise polypropylene coating 1, aluminium foil layer 2, adhesive layer 3, modification of nylon layer 4, this film has layer structure, and described packaging mantle is followed successively by polypropylene coating 1, aluminium foil layer 2, adhesive layer 3, modification of nylon layer 4 from inside to outside.
In described polypropylene coating 1, material is made up of polypropylene, adhesive solidification agent and vehicle substance.
The thickness of described polypropylene coating 1 is 1-20 μm.
In described polypropylene coating 1, polypropylene and curing agent and solvent ratios are 90/10-50/50.
In described polypropylene coating 1, polypropylene is polypropylene micro mist, and particle diameter is 1-100 μm.
In described polypropylene coating 1, curing agent is one in epoxies curing agent, polyisocyanates, polyamine, polyhydric phenols, acid anhydrides, amino resins, hydroxyalkyl amide, oxazoline or combination.
In described polypropylene coating 1 solvent be that ethyl acetate, dimethylbenzene, toluene, chloroform, trichloro-benzenes, decahydronaphthalenes, tetrahydro are resistance to, one in cyclohexane, DBP, DOP, ethylene glycol, ortho-xylene, oxolane or combination.
Aluminium foil in described aluminium foil layer 2 needs Passivation Treatment, and thickness is 30-80 μm.
In described adhesive layer 3, polyurethane adhesive selected by adhesive, and thickness is 3-30 μm.
In described modification of nylon layer 4, material is by the one or more combination in nylon and PET, PP, PE, POE, and nylon and material modified mixed and modified ratio are 99/1-10/90.
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 (2)

1. a polymer Li-ion battery packaging mantle, it is characterized in that, comprise polypropylene coating, aluminium foil layer, adhesive layer, modification of nylon layer, this film has layer structure, and described packaging mantle is followed successively by polypropylene coating, aluminium foil layer, adhesive layer, modification of nylon layer from inside to outside.
2., according to a kind of polymer Li-ion battery packaging mantle described in claim 1, it is characterized in that, the thickness of described polypropylene coating is 1-20 μm.
CN201520614044.3U 2015-08-16 2015-08-16 Polymer lithium ion battery packs mantle Active CN205004357U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520614044.3U CN205004357U (en) 2015-08-16 2015-08-16 Polymer lithium ion battery packs mantle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520614044.3U CN205004357U (en) 2015-08-16 2015-08-16 Polymer lithium ion battery packs mantle

Publications (1)

Publication Number Publication Date
CN205004357U true CN205004357U (en) 2016-01-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105140428A (en) * 2015-08-16 2015-12-09 苏州锂盾储能材料技术有限公司 Polymer soft packaging film for lithium-ion battery
TWI726663B (en) * 2019-09-27 2021-05-01 明基材料股份有限公司 Composite packaging material for lithium battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105140428A (en) * 2015-08-16 2015-12-09 苏州锂盾储能材料技术有限公司 Polymer soft packaging film for lithium-ion battery
TWI726663B (en) * 2019-09-27 2021-05-01 明基材料股份有限公司 Composite packaging material for lithium battery

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CP03 Change of name, title or address

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.

Country or region after: China

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.

Country or region before: China