Vinylene Carbonate

Formula: C₃H₂O₃ | CAS: 872-36-6

Vinylene carbonate detection: Vinylene carbonate (VC) is the simplest unsaturated cyclic carbonic acid ester.

Vinylene Carbonate Detection, Knowing The Main Properties

Industrially produced vinylene carbonate is usually a yellow to brown liquid. By suitable process control and purification steps, a solid product with a melting point of 20-22 °C and a chlorine content below 10ppm can be obtained. Liquid vinylene carbonate turns rapidly yellow even in the absence of light and must be stabilized by the addition of radical scavengers. In solid form, the highly pure substance is long-term stable when stored below 10 °C.

Vinylene carbonate has been evaluated to possess no oxidising and no explosive properties, based on structural grounds. Furthermore, the substance does not contain chemical groups indicating self-reactive properties, such as aminonitriles, haloanilines, organic salts of oxidising acids, sulphonyl halides, sulphonyl cyanides, sulphonyl hydrazides, phosphites, strained rings, olefins or cyanates. Therefore, based on structural features it is concluded that the substance is not self-reactive.
– ECHA Europe

Why Vinylene Chloride is The Main Addictive for Lithium-Ion Batteries?

Vinylene carbonate is used widely as an electrolyte additive for lithium-ion batteries where it promotes the formation of an insoluble film between the electrolyte and the negative electrode: the SEI (solid-electrolyte-interface). This polymer film allows ionic conduction, but prevents the reduction of the electrolyte at the negative (graphite) electrode and contributes significantly to the long-term stability of lithium-ion batteries.