NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY CELL, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL

摘要

The present invention is a non-aqueous electrolyte solution for a secondary cell, the solution containing an electrolyte, a solvent, and an additive, wherein the non-aqueous electrolyte solution for a secondary cell is characterized in that the additive contains a compound represented by formula (1), and the content of the compound is 0.01-10 mass parts per 100 mass parts of the solvent total. A non-aqueous electrolyte secondary cell employing this non-aqueous electrolyte solution for a secondary cell has good charge-discharge characteristics from low temperatures to high temperatures, and further has good high-temperature characteristics and overcharge characteristics. (In formula (1), R1 represents a C1-6 alkyl group, a phenyl group, or an acetoxy group; and R2 represents a C1-6 alkyl group, a phenyl group, or a vinyl group.)