Patent ID: 7754388
Filing Date: 2010-07-13
Classification: H01G,H01M,Y02E

Abstract:
1. A nonaqueous electrolyte, comprising: an organic solvent and a lithium salt dissolved in the organic solvent; and a quaternary ammonium salt in an amount of 0.06 mol/L or greater and 0.5 mol/L or less, the quaternary ammonium salt having a structure represented by (chemical formula 2): (wherein R is a divalent organic linking group having a main chain which has 4-5 atoms and is constituted of at least one member selected from carbon, oxygen, nitrogen, sulfur, and phosphorus; R1 and R2 each are either an alkyl group having 1-6 carbon atoms or an alkyl group in which at least one of the hydrogen atoms has been replaced by a fluorine atom; and X