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Preparation method of insulating and high-temperature resistant battery outer packaging film

A battery outer packaging, high temperature resistance technology, applied in chemical instruments and methods, lamination devices, non-polymer adhesive additives, etc., can solve the problems of poor insulation performance and poor high temperature resistance performance of battery outer packaging films, etc. Achieve the effect of enhancing the strength of the micro-spatial structure, improving the degree of bonding, and increasing the bond strength

Inactive Publication Date: 2019-06-21
谭凤香
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the defects of poor insulation performance and poor high temperature resistance of the current battery outer packaging film, a preparation method of an insulating and high temperature resistant battery outer packaging film is provided

Method used

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  • Preparation method of insulating and high-temperature resistant battery outer packaging film

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preparation example Construction

[0028] Preparation of reaction slurry: put corn stalks and soybean granules into an oven at a mass ratio of 3:1, dry for 12 hours at a temperature of 75°C, put them into a grinder for grinding after drying, and pass through a 50-mesh sieve to obtain the sieved product. The sieved material and hydrochloric acid with a mass fraction of 6% were put into a three-necked flask at a mass ratio of 1:5, mixed and stirred with a stirring device at a speed of 300r / min for 30min, and left to stand for 4h after stirring to prepare a reaction slurry.

[0029] Preparation of the concentrated product: put aluminum chloride powder of 3% of the mass of the reaction slurry into the above-mentioned three-necked flask, place the three-necked flask in a resistance heating mantle, raise the temperature of the heating mantle to 80°C, and heat at a constant temperature for 100 minutes. After heating, a mixed For the slurry, put the mixed slurry into a beaker, put the beaker into a vacuum drying oven, a...

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Abstract

The invention relates to a preparation method of an insulating and high-temperature resistant battery outer packaging film, and belongs to the technical field of packaging film preparation. The preparation method comprises the following steps: preparing a mixed solid product from straw and soybean as raw materials, mixing the mixed solid product with water and citric acid, adding copper powder toprepare a modified liquid, filtering the modified liquid to obtain a filter cake, mixing the filter cake with methyl acrylate, and applying the mixture to a nylon film for hot pressing to obtain the insulating and high-temperature resistant battery outer packaging film. Amino and carboxyl extracted from the soybean are utilized to form complex adsorption on aluminum ions and other chemical bond force adsorption to be more strongly adsorbed in fiber molecules, copper ions are subjected to reaction with oxygen to generate copper oxide which is mixed in carbon fibers, and aluminum oxide generatedfrom elementary aluminum by oxidation covers the fibers. Therefore, insulation performance and high-temperature resistance of the packaging film are improved, and the packaging film has broad application prospect.

Description

technical field [0001] The invention relates to a method for preparing an insulating and high-temperature-resistant battery outer packaging film, and belongs to the technical field of packaging film preparation. Background technique [0002] With the application of the Internet and the Internet of Things, smart electronic devices tend to develop in the direction of high quality and low cost. Lithium-ion battery is an ideal chemical power source recognized internationally today. It has many advantages such as high voltage, high energy density, long cycle life, small self-discharge, no memory effect, wide operating temperature range, and no pollution. It can be widely used in mobile phones, digital Fields such as cameras, game consoles, electronic equipment, electric vehicles, space technology and defense industries. [0003] At present, as a common energy output component of smart electronic devices, soft-pack lithium-ion batteries occupy a certain proportion in the overall ...

Claims

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Application Information

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IPC IPC(8): B32B37/12B32B37/06B32B37/10C09J4/02C09J11/04
Inventor 谭凤香
Owner 谭凤香
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