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Analysis of the critical components and hazards of the electrolyte of lithium iron phosphate batteries

by:Vglory      2021-05-10
What are the key components of the electrolyte for lithium iron phosphate batteries? 1. Ethylene carbonate: molecular formula: C3H4O3, transparent and colorless liquid (>35℃), 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, far 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. The harm of lithium iron phosphate battery electrolyte 1. The electrolyte is harmful to the human body The most harmful is the lithium salt, lithium hexafluorophosphate. This kind of lithium salt is very domineering. I heard that if the palm-sized skin on the surface of the human body is corroded, it can be fatal. 2. The volatilization of the electrolyte is very strong. The smell has a great impact on female pregnancy. 3. The electrolyte leakage should quickly evacuate personnel from the leaked contaminated area to a safe area, and isolate them, strictly restrict access. Cut off the source of fire. It is recommended that emergency response personnel wear self-contained positive pressure respirators. Fire protective clothing. Cut off the source of leakage as much as possible. Beware of entering sewers, flood drains and other restricted spaces. Small leakage: absorb with or other inert materials. It can also be scrubbed with an emulsion made of non-flammable dispersant, and the lotion is diluted Put it into the waste water system. A large amount of leakage: build a dike or dig a pit for storage. Use foam to overturn to reduce steam disasters. Use explosion-proof pumps to transfer to tank trucks or special collectors for recycling or transport to waste disposal sites for disposal. Statement: This site Some pictures and content of the published article are from the Internet. If there is any infringement, please contact to delete the previous article: Comparison of the energy density of lithium iron phosphate batteries and ternary lithium batteries
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