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A kind of aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof

An aluminum-plastic composite film, anti-oxidation technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., to achieve the effect of improving performance, improving corrosion resistance and oxidation resistance, and easy adhesion

Active Publication Date: 2021-10-08
JIESHOU CITY TIANHONG PACKAGING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a lithium battery inner layer composite film with super corrosion resistance and its preparation method, in order to solve the above-mentioned background and propose that the lithium battery outer packaging material should have high barrier properties, ductility and electrolyte resistance.

Method used

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  • A kind of aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof
  • A kind of aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof
  • A kind of aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0043] see Figure 1-3As shown, an aluminum-plastic composite film with anti-oxidation and high ductility is composed of a nylon composite layer, an aluminum foil composite layer, and a polypropylene layer from the outside to the inside; the nylon composite layer is the upper and lower surfaces of the nylon layer. It is obtained by coating nano-scale silicon dioxide; the aluminum foil composite layer is obtained by coating nano-scale titanium dioxide on the upper and lower surfaces of the aluminum foil layer; the aluminum foil layer is obtained by rolling aluminum alloy;

[0044] The preparation of the aluminum foil layer comprises the following steps:

[0045] S1, prepare the aluminum alloy raw material, the aluminum alloy raw material is made up of base material, auxiliary material and additive, base material is 90.59% aluminum by mass percentage; auxiliary material is 6.2% zinc by mass percentage; additive is by mass percentage 0.32% silicon, 0.55% manganese, 1.15% iron, 0...

Embodiment 2

[0061] see Figure 1-3 As shown, an aluminum-plastic composite film with anti-oxidation and high ductility is characterized in that: the aluminum-plastic composite film is sequentially composed of a nylon composite layer, an aluminum foil composite layer, and a polypropylene layer from the outside to the inside; the nylon composite layer is The upper and lower surfaces of the nylon layer are coated with nano-scale silicon dioxide; the aluminum foil composite layer is obtained by coating the upper and lower surfaces of the aluminum foil layer with nano-scale titanium dioxide; the aluminum foil layer is obtained by rolling aluminum alloy;

[0062] The preparation of the aluminum foil layer comprises the following steps:

[0063] S1, prepare the aluminum alloy raw material, the aluminum alloy raw material is made up of base material, auxiliary material and additive, base material is 90.24% aluminum by mass percentage; auxiliary material is 6.3% zinc by mass percentage; additive i...

Embodiment 3

[0078] see Figure 1-3 As shown, an aluminum-plastic composite film with anti-oxidation and high ductility is characterized in that: the aluminum-plastic composite film is sequentially composed of a nylon composite layer, an aluminum foil composite layer, and a polypropylene layer from the outside to the inside; the nylon composite layer is The upper and lower surfaces of the nylon layer are coated with nano-scale silicon dioxide; the aluminum foil composite layer is obtained by coating the upper and lower surfaces of the aluminum foil layer with nano-scale titanium dioxide; the aluminum foil layer is obtained by rolling aluminum alloy;

[0079] The preparation of the aluminum foil layer comprises the following steps:

[0080] S1, prepare aluminum alloy raw material, aluminum alloy raw material is made up of base material, auxiliary material and additive, base material is 88.81% aluminum by mass percentage; auxiliary material is 7.4% zinc by mass percentage; additive is calcul...

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Abstract

The invention discloses an aluminum-plastic composite film with oxidation resistance and high ductility. The aluminum-plastic composite film is sequentially composed of a nylon composite layer, an aluminum foil composite layer and a polypropylene layer from the outside to the inside; the nylon composite layer is a nylon The upper and lower surfaces of the aluminum foil layer are coated with nano-scale silicon dioxide; the aluminum foil composite layer is obtained by coating the upper and lower surfaces of the aluminum foil layer with nano-scale titanium dioxide; the aluminum foil layer is obtained by rolling an aluminum alloy; the aluminum alloy is composed of a base material, Auxiliary material and additive composition, base material is the aluminum of 87-92% by mass percent; Auxiliary material is the zinc of 5.0-8.0% by mass percent; Additive is the silicon of 0.3-0.4% by mass percent, 0.4-0.4% Composition of 0.8% manganese, 1.0‑1.3% iron, 0.1‑0.4% magnesium, 0.04‑0.1% titanium, 0.4‑0.6% tin, 0.45‑0.6% bismuth; solve the barrier properties of existing aluminum-plastic composite films , Oxidation resistance, ductility and poor electrolyte resistance.

Description

technical field [0001] The invention belongs to the technical field of composite membrane materials, and in particular relates to an aluminum-plastic composite membrane with oxidation resistance and high ductility and a preparation method thereof. Background technique [0002] At present, metal-packed lithium batteries are easy to release gas during use, and the pressure increases to cause explosion. A new type of flexible packaging material, that is, aluminum-plastic composite film, has been introduced. This packaging material can expand and release pressure, thereby preventing explosion. [0003] Lithium batteries as a whole include positive electrode / negative electrode materials and electrolyte. However, the electrolyte is corrosive. In the existing aluminum-plastic composite film production technology, the aluminum-plastic composite film is usually composed of nylon, aluminum foil and polypropylene in sequence, and the aluminum foil is used as the middle layer. It is eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/085B32B15/088B32B15/20B32B27/32B32B27/34B32B37/10B32B37/12B32B38/00
CPCB32B15/085B32B15/088B32B15/20B32B27/32B32B27/34B32B37/10B32B37/12B32B38/164
Inventor 李汪洋胡伟吴磊周正发任凤梅张伟孙晓华徐凤锦刘志强王若愚张德顺郭浩
Owner JIESHOU CITY TIANHONG PACKAGING MATERIAL
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