LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a lithium secondary battery having characteristics that an internal resistance is small and a discharge capacity in a low temperature region is large. SOLUTION: This is a lithium secondary battery using a nonaqueous electrolytic solution obtained by dissolving a lithium compound in an organic solvent. The organic solvent is a mixed solvent containing at least a cyclic carbonate, an asymmetrical chain carbonate and a carboxylic ester.