SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a secondary battery offering excellent battery characteristics.

SOLUTION: The secondary battery comprises a positive electrode and a negative electrode, and an electrolytic solution. At least one of the positive electrode, the negative electrode, and the electrolytic solution contains an alkyl carbonate represented by R-O-C(=O)-O-X. R represents a C8-C20 straight-chain alkyl or alkyl halide group, or a branched-chain alkyl or alkyl halide group with a C8-C20 main chain. X represents an alkali metal element.

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