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SINO TECHNOLOGY

Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .

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SUNBEAM

Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales

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GREEN POWER

Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc

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DATAPOWER

Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.

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SEONG-HEE

Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc

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STD

Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.

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Lithium battery separator material.18650 lithium ion battery 3.7v

release time:2023-08-10 Hits: Popular:AG11 battery

　　The market-oriented membrane materials are mainly polyolefin membranes made of polyethylene (PE) and polypropylene (PP). PE products are mainly produced by wet process, while PP products are mainly produced by dry process. As for the characteristics of PE and PP materials.

　　Overall:

　　① PP is relatively more resistant to high temperatures, while PE is relatively resistant to low temperatures;

　　② PP has a lower density than PE;

　　③ PP has a higher melting point and closed cell temperature than PE;

　　④ PP products are more brittle than PE;

　　⑤ PE is more sensitive to environmental stress.

　　The main diaphragm material products include single-layer PP, single-layer PE, PP+ceramic coating, PE+ceramic coating, double-layer PP/PE, double-layer PP/PP, and three-layer PP/PE/PP, among which the first two types of products are mainly used in the field of 3C small batteries, and the latter few types are mainly used in the field of power lithium batteries. Among the diaphragm materials used for power lithium batteries, double-layer PP/PP diaphragm materials are mainly produced by Chinese enterprises and used in Chinese Mainland, mainly because there is no technology and ability of Chinese enterprises to make double-layer composite films from PP and PE. The separators used in global automotive lithium-ion batteries are mainly made of three-layer PP/PE/PP, double-layer PP/PE, as well as PP+ceramic coating, PE+ceramic coating and other separator materials.

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