Patent ID: 8426593
Filing Date: 2013-04-23
Classification: C07D,H01G

Abstract:
1. A one-solution method of making a non-aqueous electrolyte composition that comprises at least one of a spiro quaternary ammonium tetrafluoroborate compound or a spiro quaternary ammonium bis(trifluoromethylsulfonyl)imide compound and an electrolyte solvent, the method comprising: reacting in the electrolyte solvent a cyclic amine, an alkylating agent, and at least one of a metal tetrafluoroborate and a metal bis (trifluoromethylsulfonyl)imide in the presence of a base, thereby forming the electrolyte composition, wherein said electrolyte solvent is selected from the group consisting of acetonitrile, succinonitrile, glutaronitrile, propionitrile, phenylacetonitrile, isobutylronitrile, benzonitrile, acrylonitrile, propylene carbonate, ethylene carbonate, diethyl carbonate, dimethyl carbonate, ethyl methyl carbonate, methyl 2,2,2-trifluoroethyl carbonate, gamma-butryolactone, methylpropylketone, methylisobutylketone, N-methylpyrrolidone, N,N-dimethylformamide, dimethylacetamide, sulfolane, and mixtures thereof, and wherein said cyclic amine comprises a cyclic secondary amine moiety having the formula: where n is independently an integer selected from the group consisting of 1 and 2; wherein said at least one of a spiro quaternary ammonium tetrafluoroborate compound or a spiro quaternary ammonium bis(trifluoromethylsulfonyl)imide compound comprises the structure: wherein n is independently an integer selected from the group consisting of 1 and 2; m is independently an integer from 1 to 6; R R R (a) H; (b) a C (c) heteroalkyl groups with a chain length of about 1 to about 6; R