FIVE-MEMBERED CYCLIC ANION USE THEREOF AS AN ELECTROLYTE

摘要

A pentacyclic anion salt is provided for use thereof in electrolyte compositions. The compound has an inorganic, organic or organometallic cation M of valency m (1≦m≦3) and m anions corresponding to the formula (I) in which Rf is a —CFZ′Z″ group in which Z′ is F or a perflouroalkyl group having from 1 to 3 carbon atoms, and Z″ is an H, F or Cl group, an optionally fluorinated or perfluorinated alkoxy group having from 1 to 5 carbon atoms, an optionally fluorinated or perfluorinated oxaalkoxy group having 1 to 5 carbon atoms or an optionally fluorinated or perfluorinated alkyl group having from 1 to 5 carbon atoms; Z″ being other than F when Z′ is F. An electrolyte composition comprises said salt in solution in a liquid solvent or a polymer solvent.

主权项

1. A compound comprising an inorganic, organic or organometallic cation M of valency in (1≦m≦3) and m anions corresponding to the formulain which Rf is a —CFZ′Z″ group in which:
Z′ is F or a perfluoroalkyl group having from 1 to 3 carbon atoms, Z″ is an H, F or Cl group, an optionally fluorinated or perfluorinated alkoxy group having from 1 to 5 carbon atoms, an optionally fluorinated or perfluorinated oxaalcoxy group having from 1 to 5 carbon atoms or an optionally fluorinated or perfluorinated alkyl group having from 1 to 5 carbon atoms; Z″ being other than F when Z′ is F and M is Li.