What is the important composition of lithium battery electrolyte

Lithium battery electrolyte is the carrier of ion transmission in the battery. Generally composed of lithium salt and organic solvent. The electrolyte is used to conduct ions between the positive and negative electrodes of the lithium battery, which is the guarantee for the lithium battery to obtain the advantages of high voltage and high specific energy. The electrolytes currently used in lithium batteries on the market are lithium perchlorate, lithium fluoride salt, lithium hexafluorophosphate and so on. 1. Ethylene carbonate: molecular formula: C3H4O3, transparent and colorless liquid (u003e35℃), crystalline solid at room temperature, it is a good solvent for polyacrylonitrile and polyvinyl chloride. 2. Propylene carbonate, colorless, odorless, or light yellow translucent liquid, soluble in water and carbon tetrachloride, and miscible with ether, acetone, benzene, etc. This product should be stored in a cool, ventilated, dry place, away from fire, and stored and transported in accordance with the regulations of general low-toxic chemicals. 3. Diethyl carbonate, a colorless liquid with a slight odor; vapor pressure 1.33kPa/23.8°C; flash point 25°C (flammable liquid can volatilize into vapor and run into the air. 4. Dimethyl carbonate is a A non-toxic, environmentally friendly, and versatile chemical raw material; at the same time, it has a higher evaporation temperature and a faster evaporation rate. 5. Ethyl methyl carbonate, a colorless and translucent liquid, is a high-tech, high-additional liquid that has emerged in recent years A valuable chemical product, an excellent solvent for lithium battery electrolyte, this product should be stored in a cool, ventilated, dry place, and stored and transported in accordance with the regulations for flammable chemicals. 6. Lithium hexafluorophosphate, white crystal or powder, with strong deliquescence; Analysis when exposed to air or heating, lithium hexafluorophosphate is quickly analyzed in the air due to the use of water vapor when exposed to air or heated, and PF5 is released and white smoke appears. 7. Phosphorus pentafluoride is a phosphorus halide compound. Phosphorus pentafluoride It is a colorless malodorous gas under normal temperature and pressure, which has strong irritation to the skin, eyes, and mucous membranes. Phosphorus pentafluoride is used as a catalyst for polymerization. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous post: About the decomposition of lithium battery separator