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3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
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 .
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
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
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.
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
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.
release time:2023-07-20 Hits: Popular:AG11 battery
Requirements for lithium battery separators: (1) have electronic insulation to ensure mechanical isolation of positive and negative electrodes; (2) Having a certain pore size and porosity, ensuring low resistance and high ion conductivity, and having good permeability to lithium ions; (3) Due to the strong polarity of organic compounds in the electrolyte, the separator must be resistant to electrolyte corrosion and have sufficient chemical and electrochemical stability; (4) Good wettability of electrolyte and sufficient absorption and moisturizing ability; (5) Having sufficient mechanical properties, including puncture strength, tensile strength, etc., but with a minimum thickness; (6) Good spatial stability and smoothness; (7) Good thermal stability and automatic shutdown protection performance. Power batteries have higher requirements for separators, usually using composite membranes.
According to different physical and chemical properties, lithium battery separator materials can be divided into several categories: woven membrane, non-woven membrane (non-woven fabric), microporous membrane, composite membrane, separator paper, roller compacted membrane, and so on. Polyolefin materials have excellent mechanical properties, chemical stability, and relatively inexpensive characteristics. Therefore, polyethylene, polypropylene, and other polyolefin microporous membranes were used as separators for lithium batteries in the early stages of research and development. Although there have been studies in recent years on the preparation of lithium battery separators using other materials, such as BoudunF, who used phase conversion methods to prepare lithium battery separators using polyvinylidene fluoride (PVDF) as the bulk polymer. Kuribayash et al. studied cellulose composite membranes as separator materials for lithium batteries. However, up to now, commercial lithium battery separator materials mainly use polyethylene and polypropylene microporous membranes. In recent years, solid and gel electrolytes have begun to be used as a special component, which plays the role of electrolyte and battery separator at the same time. It is a new technical means. Table 1-2 provides the main manufacturers and product information of lithium battery separators.
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