NONAQUEOUS ELECTROLYTE AND NONAQUEOUS SECONDARY BATTERY INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an electrolyte having a function for suppressing overcharge through electrolytic polymerization and a redox shuttle reaction caused by a reaction with a positive electrode high in potential when overcharged.

SOLUTION: A nonaqueous electrolyte comprising a solution including a nonaqueous solvent and an electrolyte salt includes: a pyrogenic substance electrochemically causing an exothermic reaction at 4.3 V or more based on lithium metal; and a polymer type overcharge suppression material performing electrolytic polymerization at 4.3-5.5 V based on lithium metal.

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