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Flexible package aluminum-plastic film material for lithium battery

A technology of flexible packaging and aluminum-plastic film, which is applied in the direction of battery box/cover material, battery pack parts, battery box/coating, etc., which can solve the problems of high requirements for solvent bonding layer and difficulty in ensuring quality, and achieve stretching Good compressive strength and hardness, good heat resistance, and firm adhesion

Inactive Publication Date: 2014-12-24
广东赛洋科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the aluminum-plastic film for dry-type composite lithium battery flexible packaging has high requirements for the solvent bonding layer, and it is difficult to guarantee the quality

Method used

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  • Flexible package aluminum-plastic film material for lithium battery

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Embodiment Construction

[0016] Below in conjunction with each specific embodiment and accompanying drawing, the present invention will be further described:

[0017] See figure 1 As shown, the present invention discloses a flexible packaging aluminum-plastic film material for lithium batteries. The flexible packaging aluminum-plastic film material for lithium batteries has a layered structure. Distributed from the inside to the outside is a new functional adhesive resin layer (AD) 2, a polyester layer (PET) 3, a co-polypropylene layer (CPP) 5, and the outer side is distributed from the inside to the outside in turn as a new functional adhesive resin layer (AD) 2. Polyester layer (PET) 3, homopolypropylene (PP) 1, distributed on both sides. Since the layered structure of the flexible aluminum-plastic film material for lithium batteries of the present invention is distributed, the stress of the material is more uniform and the flatness is good, which is convenient for packaging and use.

[0018] ...

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Abstract

The invention relates to a flexible package aluminum-plastic film material for a lithium battery. The flexible package aluminum-plastic film material for the lithium battery comprises a layer structure, wherein the layer structure comprises an aluminum-based layer (AL) in the middle and layers on the inner side and the outer side of the aluminum-based layer, wherein a novel functional adhesive resin layer (AD), a polyester layer (PET), a novel functional adhesive resin layer (AD) and a copolymer propylene layer (CPP) are sequentially distributed on the inner side from inside to outside; a polyester layer (PET), a novel functional adhesive resin layer (AD) and a homopolymer propylene layer (PP) are sequentially distributed on the outer side from inside to outside. The polyester layer (PET) is used as a functional barrier layer and has the stable chemical performance and high electrolyte resistance; the copolymer propylene layer (CPP) is used as a functional material layer and has the high electrolyte resistance, heat-sealing performance and high heat-sealing strength; the novel functional adhesive resin layer (AD) is made of a PP material and has the strong adhesive fastness with the aluminum-based layer (AL), the polyester layer (PET), the homopolymer propylene layer (PP) and the copolymer propylene layer (CPP). The layering can not occur by adopting a casting process technology.

Description

technical field [0001] The invention relates to the technical field of flexible packaging aluminum-plastic film for lithium batteries, specifically, the invention relates to a flexible packaging aluminum-plastic film material for lithium batteries. Background technique [0002] At present, the aluminum-plastic film for lithium battery packaging in the market is monopolized by two Japanese companies. Although many domestic manufacturers are developing it, they have failed. There is no domestically produced aluminum-plastic film for lithium battery flexible packaging in the market. Flexible packaging lithium batteries are widely used in the packaging of lithium batteries due to their advantages of being thin, large in size, irregular in shape, non-combustible, and extremely small in explosive power. [0003] At present, most of the aluminum-plastic films for flexible packaging of lithium batteries on the market are produced by dry lamination process. The particularity of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02B32B15/08B32B15/09
CPCB32B15/082B32B15/09H01M50/10H01M50/116Y02E60/10
Inventor 罗圣清
Owner 广东赛洋科技有限公司
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