The composition of lithium battery electrolyte is shown below.
1. Ethylene carbonate: 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℃); solvent.
2. Propylene carbonate: molecular formula C4H6O3.
Colorless and odorless liquid, or light transparent**, soluble in water and carbon tetrachloride, 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. It is especially used to absorb carbon dioxide from natural gas raw materials and synthetic ammonia in petrochemical plants. It can also be used as platifier, spinning solvent, olefin and aromatic hydrocarbon extractant, etc.
This product should be stored in a cool, ventilated, dry place away from sources of fire, and should be stored and transported in accordance with general regulations for low-toxic chemicals.
3. Diethyl carbonate: molecular formula CH3OCOOCH3.
Colorless liquid with a slight odor; vapor pressure 1.33kPa/23.8℃; flash point 25℃ (flammable liquid may volatilize into vapor and flow into the air. As the temperature increases, volatilization accelerates. When volatilization when a mixture of vapor and d Air can spark when it comes into contact with a fire source. This brief combustion process is called flash combustion, and the lowest temperature at which flash combustion occurs is called the flash point. 43°C; boiling point 125.8°C;lubility: insoluble in water, miscible in most organic solvents such as alcohols, ketones and esters; relative density (water = 1) 1.0; ; stability: stable; Hazard Mark 7 (flammable liquid); use as solvents and in organic synthesis