SECONDARY CELL, ELECTROLYTE, CELL PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE

A secondary battery capable of improving cycle characteristics, conservation characteristics, and load characteristics is provided. The secondary battery includes a cathode 21, an anode 22, and an electrolytic solution. A separator 23 provided between the cathode 21 and the anode 22 is impregnated with an electrolytic solution. The electrolytic solution includes one or more of a dicarbonic ester compound, a dicarboxylic compound, a disulfonic compound, a monofluoro lithium phosphate, and difluoro lithium phosphate and one or more of fluorinated lithium phosphate, fluorinated lithium borate, and imide lithium.