This article takes you to know the important components of lithium battery electrolyte

Important components of lithium battery electrolyte 1. Molecular formula: C3H4O3 transparent colorless liquid (35℃), crystalline solid at room temperature. Boiling point: 248℃/760mmHg, 243-244℃/740mmHg; flash point: 160℃; density: 1.3218; refractive index: 1.4158 (50℃); melting point: 35-38℃; this product is polyacrylonitrile and polyvinyl chloride The excellent solvent. It can be used for spinning; it can also be used directly as a solvent to remove acid gases and concrete additives. As a medicinal ingredient and material; it can also be used as a component of plastic foaming agent and lubricating oil stabilizer; in the battery industry, it can be used as an excellent solvent for lithium battery electrolyte 2. Molecular formula: C4H6O3 is colorless and odorless, or light yellow and transparent Liquid, soluble in water and carbon tetrachloride, and miscible with ether, acetone, benzene, etc. It is an excellent polar solvent. This product is mainly used in polymer operations, gas separation processes and electrochemistry. In particular, it can be used to absorb carbon dioxide from natural gas and ammonia in petrochemical plants. It can be used as plasticizer, spinning solvent, olefin, aromatic extraction agent, etc. Toxicological information: No toxicity was found in animal experiments by oral or skin contact. Rat oral LD50u003d2,9000mg/kg. This product should be stored in a cool, ventilated, dry place, away from fire, and stored and transported in accordance with the general rules of low-toxic chemicals. 3. Molecular formula: C5H10O3 colorless liquid with slight odor; vapor pressure of 1.33kPa/23.8℃; flash point of 25℃ (flammable liquid can evaporate into steam and flow into the air). As the temperature increases, the use of transpiration accelerates. When a mixture of steam and air is used for transpiration, sparks appear when it comes into contact with a fire source. This short combustion process is called flash. The lowest temperature at which flash occurs is called flash point. The lower the flash point, the greater the risk of fire. Melting point -43°C; boiling point 125.8°C; solubility: insoluble in water, soluble in organic solvents such as alcohols, ketones, esters, etc.; density: relative density (water u003d 1) 1.0; relative density (air u003d 1) stability: stable Sex; risk symbol 7 (flammable liquid); important uses: solvents and organic ingredients 4. Dimethyl carbonate: C3H6O3 (dimethyl carbonate (DMC) is a non-toxic, environmentally friendly, and a wide range of chemical substances. An important organic intermediate, the molecular structure contains carbonyl, methyl and methoxy functional groups, and has a variety of response functions. It is used for processing safety, convenience, less pollution, convenient transportation, and so on. Dimethyl carbonate has low toxicity and is a promising green chemical product. 5. Molecular weight: 104.1, density 1.00 g/cm3, bright colorless liquid, boiling point 109℃, melting point and 55℃, it is in recent years The emerging high-tech, high value-added chemical products, an excellent lithium battery electrolyte solvent, and dimethyl carbonate and lithium battery processing new and expanded latest products, because it is combined with methyl, ethyl, dimethyl carbonate The characteristics of esters, diethyl carbonate, and special fragrance intermediates and solvents. Due to the imbalance of methyl ethyl, the product is unstable and not suitable for long-term storage. This product should be stored in a cool, ventilated, and dry place. Regulations for storage and transportation of flammable chemicals 6. Lithium hexafluorophosphate is white crystal or powder, with a relative density of 1.50. It is strongly soluble; it is soluble in water and also soluble in low-concentration organic solvents such as methanol, ethanol, acetone, and carbonate. The identification is performed when exposed to air or heat. When lithium is exposed to air or heated, due to the use of water vapor, lithium hexafluoride rapidly differentiates in the air, resulting in PF5 and white smoke. 7. Phosphorus pentafluoride ( Chemical formula: PF5), is a phosphorous halogen compound, the oxidation number of phosphorous atom is +5, including a three-center four-electron bond. Phosphorus pentafluoride is a colorless odorous gas under normal temperature and pressure, which is harmful to skin and eyes It has a serious impact on mucous membranes. It is a highly active compound that can produce highly toxic and corrosive hydrogen fluoride white smoke in humid air. Phosphorus pentafluoride is used as a catalyst for polymerization. Statement: Some pictures of articles published on this site And the content comes from the Internet, if there is any infringement, please contact to delete the previous article: Are lithium batteries afraid of low temperatures?