RECHARGEABLE BATTERY COMPRISING NON AQUEOUS ELECTROLYTE USING ALKYL METHANE SULFONATE AS SOLVENT FOR DISSOLVING ELECTROLYTE SALT

摘要

The present invention relates to a secondary battery comprising a nonaqueous electrolyte solution using an alkylmethanesulfonate as a solvent for dissolving an electrolyte salt, and can improve the lifetime characteristics and high temperature performance of the battery at a high temperature.