NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SOLUTION AND COMPOUND

摘要

The present invention relates to a nonaqueous electrolyte secondary battery which uses a positive electrode containing a transition metal and lithium, and suppresses deterioration of the nonaqueous electrolyte secondary battery due to the transition metal eluted from the positive electrode, thereby enabling the nonaqueous electrolyte secondary battery to maintain low internal resistance and high electrical capacity even after storage at high temperatures or charge/discharge at high temperatures. Specifically, a nonaqueous electrolyte secondary battery which comprises a negative electrode that is capable of intercalating/deintercalating lithium, a positive electrode that contains a transition metal and lithium, and a nonaqueous electrolyte solution that is obtained by dissolving a lithium salt in an organic solvent, and wherein the nonaqueous electrolyte solution is configured to contain a biscarboxylic acid ester compound represented by general formula (1).