NONAQUEOUS SOLVENT FOR POWER STORAGE DEVICE AND NONAQUEOUS ELECTROLYTE FOR POWER STORAGE DEVICE, AS WELL AS POWER STORAGE DEVICE, LITHIUM SECONDARY BATTERY, AND ELECTRIC DOUBLE LAYER CAPACITOR USING THEM

摘要

PPROBLEM TO BE SOLVED: To provide a nonaqueous solvent and a nonaqueous electrolyte for a power storage device, which are highly resistant to oxidation. PSOLUTION: The nonaqueous solvent for the power storage device is expressed by a general formula (1), and includes a fluorine-containing cyclic saturated hydrocarbon having a configuration with one or two substituent(s) R being introduced to a cyclohexane ring (in the general formula (1), R is expressed by CSBn/SBXSB2n+1/SB, where n is an integer equal to or larger than 1, one of 2n+1 Xs is F, and other Xs are F or H), a chain sulfone compound expressed by a general formula (2) (in the general formula (2), each of RSB1/SB, RSB2/SBis an independent 1C-4C alkyl group, respectively), and a cyclic sulfone compound expressed by a general formula (3) (in the general formula (3), X is an alkylene group with a carbon number 1 to 7, which may be a straight chain or may have a branch). PCOPYRIGHT: (C)2011,JPO&INPIT