氟代碳酸乙烯酯的合成.pdf
- qianqiana个人认证 |
- 2017-06-08 发布|
- 691.28 KB|
- 43页
Abstract Fluoroethylene carbonate can be used as medicine and pesticide intermediates, mainly used
for the additive of lithium ion battery, it can form a layer of the excellent performance of the SEI
film to reduce the battery impedance, partial inhibition of electrolyte decomposition, it can
significantly improve the specific capacity of battery and improve battery cycle stability,
fluoroethylene carbonate also has the effect of flame retardant, thus improving the safety of the
battery. At present the industrial production of fluoroethylene carbonate are aways use lluorine gas
to proceed direct fluoride. Based on a certain percentage of F2 and inert gas mixture at a certain
temperature directly fluorinated reaction with the ethylene carbonate. Because of the F2 can
Further react with the