Aluminum-plastic film for lithium ion battery

A lithium-ion battery and aluminum-plastic film technology, applied in the field of aluminum-plastic film, can solve the problems of deep drawing of aluminum-plastic film, resistance to electrolyte, etc., and achieve strong corrosion resistance, good impermeability, and high stability Effect

Pending Publication Date: 2018-09-14
深圳市陵英新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing aluminum-plastic film has the problems of deep drawing and electrolyte resistance, and urgently needs to be improved.

Method used

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  • Aluminum-plastic film for lithium ion battery
  • Aluminum-plastic film for lithium ion battery
  • Aluminum-plastic film for lithium ion battery

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] see figure 1 , the embodiment of the present invention provides an aluminum-plastic film 100 for a lithium-ion battery. The aluminum-plastic film 100 includes an outer protective layer 1, an aluminum layer 2, and a resin layer 3 that are sequentially coated from the outside to the inside. The components include at least one of EAA (ethylene acrylic acid), PVA (polyvinyl alcohol), PE (polyethylene), PA (polyamide), TIE adhesive (generally used in the industry) and PP (polypropylene).

[0021] Lithium batteries are liquid substances containing a large amount of corrosive organic solvents, whi...

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Abstract

The invention is applicable to the technical field of packing materials and provides an aluminum-plastic film for a lithium ion battery. The aluminum-plastic film comprises an outer protective layer,an aluminum layer and a resin layer which are sequentially coated from outside to inside; the resin layer comprises at least one of EAA, PVA, PE, PA, TIE and PP. According to the aluminum-plastic filmfor the lithium ion battery, provided by the invention, the outer protective layer on the outermost surface mainly plays a protecting role, and aluminum is made of a matrix material and plays waterproof and obstructive agent roles. The aluminum plastic film for the lithium ion battery, provided by the embodiment of the invention, has deep drawing of being up to 6-8 mm and has the advantages of electrolyte resistance, no layering and the like as well.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, in particular to an aluminum-plastic film used for lithium-ion batteries. Background technique [0002] Lithium polymer battery is the battery with the highest capacity, the lightest weight and the highest safety among lithium batteries. It is very popular. Mobile smart devices basically use polymer soft pack batteries, one of the important components of polymer soft pack batteries. One is its flexible packaging material, that is, aluminum-plastic film. However, domestic technical difficulties are high, and the aluminum-plastic film market is basically monopolized by Japanese and Korean companies. Japan's Showa and DNP together account for 85% of the market share. [0003] At present, there are two trends in the development of lithium-ion batteries: one is the development of batteries in the direction of miniaturization and thinning; the other is the development of batteries in the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/082B32B15/085B32B15/088B32B15/20B32B7/12H01M2/02H01M10/0525H01M50/124
CPCH01M10/0525B32B7/12B32B15/082B32B15/085B32B15/088B32B15/20B32B2307/714B32B2307/73B32B2457/10H01M50/124Y02E60/10
Inventor 刘德刚
Owner 深圳市陵英新材料有限公司
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