Method for synthesizing quaternary ammonium systems
First Claim
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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, andwherein said cyclic amine comprises a cyclic secondary amine moiety having the formula;
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Abstract
A method for preparing a spiro quaternary ammonium system and electrolytes containing spiro quaternary ammonium cations, comprising a synthesizing step wherein a spiro ammonium system having a structure of:
wherein n is independently an integer from about 0 to about 6;
- R1 is independently CH2, CHF, CF2, CH, CF;
- R2 is CH2, CF, CR3, CHF, CF2, CHR3, CR3R3, NH, O, S, 3-8 member cyclic or heterocyclic, or a polycyclic or polyheterocyclic wherein each ring has 3 to 8 members;
- R3 is independently
- (a) H;
- (b) a C1-C6 alkyl, C1-C6 alkoxy, or C1-C6 alkenyl group; or
- (c) heteroalkyl groups with a chain length of about 1 to about 6;
- R4 is CF, CH2, CR3, CHF, CF2, CHR3, CR3R3, NH, O, S, or a quaternary ammonium spiro junction
- is formed in a medium that can serve as both the reaction solvent and as an electrolyte solvent.
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13 Claims
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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:
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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; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification