Patent ID: 9738666
Date: 2017-08-22
CPC Classifications: C07C,C07D,C07F,H01G,H01M,Y02E

Claim:
1. An electrolyte salt for electrical storage devices, comprising a quaternary ammonium cation of formula (1) below and a trimethylsilyl alkanesulfonate anion of formula (2) below wherein R 1 to R 4 are each independently an alkyl group of 1 to 4 carbons or an alkoxyalkyl group of the formula —(CH 2 ) n —OR, with the proviso that at least one of R 1 to R 4 is an alkoxyalkyl group of the formula —(CH 2 ) n —OR; R is a methyl group or an ethyl group; n is 1 or 2; and m is 2 or 3.