NON-AQUEOUS LIQUID ELECTROLYTE FOR SECONDARY BATTERY AND SECONDARY BATTERY

摘要

A non-aqueous liquid electrolyte for a secondary battery, containing an electrolyte, and at least one or more cyclopropane compound selected from the group consisting of a compound represented by the following formula (I-1), a compound represented by the following formula (II-1), and a compound represented by the following formula (III-1) in an organic solvent,;wherein R11 to R15, R21 to R24 and R31 to R34 represent a hydrogen or a specific substituent; L11, L21, L31 and L32 represent a specific linking group; X represents an electron-withdrawing group; and n and m each independently represent 1 or 2.

主权项

1. A non-aqueous liquid electrolyte for a secondary battery, comprising:
an electrolyte; at least one or more cyclopropane compound selected from the group consisting of a compound represented by the following formula (I-1), a compound represented by the following formula (II-1), and a compound represented by the following formula (III-1) in an organic solvent, wherein, in formula (I-1), R11 to R14 each independently represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a fluorine atom, a group containing an carbonyl group, or a cyano group; R15 represents a substituent having 1 to 7 carbon atoms which may have an oxygen atom, an nitrogen atom, or a sulfur atom; L11 represents an alkylene group or a carbonyl group; X represents an electron-withdrawing group having a Hammett substituent constant σp value of 0 or more; wherein, in formula (II-1), R21 to R24 each independently represent a hydrogen atom or a substituent; and L21 represents a group of atoms for forming a ring structure with a carbonyl group and a carbon atom of a cyclopropyl group; and wherein, in formula (III-1), R31 to R34 each independently represent a hydrogen atom or a substituent; L31 represents an oxygen atom, —NR35—, or a carbonyl group; L32 represents an alkylene group, an oxygen atom, a sulfur atom, —SO2—, or —NR35—; R35 represents an alkyl group or an aryl group; and n and m each independently represent 1 or 2.