NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery in which the battery capacity is large and which has a superior temperature preservation property. SOLUTION: This is the nonaqueous electrolyte secondary battery which contains the positive electrode and negative electrode which can occlude and discharge lithium ions, and in which nonaqueous electrolyte in which lithium salts are dissolved in organic solvent, and this is comprised and characterized that beryllium compound is added in the nonaqueous electrolyte.