Formula of lithium battery shell and preparation method for lithium battery shell
A lithium battery and shell technology, applied in the field of lithium battery shell composition and preparation, can solve the problems of small capacity, high cost, heavy battery shell weight, etc., to reduce shrinkage ratio, improve flame retardancy, and simplify production The effect of the process
Active Publication Date: 2012-09-05
吉林中聚新能源科技有限公司
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Problems solved by technology
[0005] The invention provides a method for preparing a lithium battery casing, which solves the problems of large weight, small capacity and high cost of the traditional battery casing
Method used
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Experimental program
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Embodiment 1
[0031] Example 2:
Embodiment 2
[0033] Example 3:
Embodiment 3
[0035] Example 4:
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The invention provides a method for preparing a lithium battery shell. According to materials of the shell, polypropylene (PP) is used as a base material, and glass fibers are used as enhanced materials, so that the shell is formed by mixing, melting and injection-molding the materials. According to the lithium battery shell, the tensile strength and the hardness are greatly improved, and the contraction ratio of the shell which is heated is reduced; a polyolefin elastomer and a flexible polymer are used as auxiliary materials, so that the flexibility and the high and low temperature resistance performance of the shell are improved; and the conventional MAH-g-PP is used as a solubilizer. The production flow of the shell is simplified, the production cost of the shell is reduced, and most importantly, use and production of poisonous and harmful substances and pollution to the environment are avoided; and therefore, the lithium battery shell is favorable for guaranteeing the health of a producer and a user.
Description
technical field [0001] The invention relates to a lithium battery case composition and a preparation method, belonging to the technical field of battery production. Background technique [0002] With the continuous development of lithium battery new energy technology, my country and the world have set off a wave of research and development in lithium battery related industries, and research on new lithium battery casings is also an important aspect of it. The traditional battery casing faces two major problems. The lithium battery casing using metal as the main material is expensive and heavy; the lithium battery casing using aluminum-plastic film as the main material has small capacity and low material strength. Therefore, many people in the industry have shifted their attention to the development of low-quality, low-cost, high-strength new lithium battery casings. [0003] The future research direction of lithium battery casing materials should be polymers, among which po...
Claims
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IPC IPC(8): C08L23/12C08L23/00C08L51/06C08K13/04C08K7/14C08K3/02C08K3/22C08K3/26C08K5/12C08K5/101H01M2/02
CPCY02E60/10
Inventor 康书文王永伟
Owner 吉林中聚新能源科技有限公司