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, containing an electrolyte, a solvent, and an additive, wherein the non-aqueous electrolyte solution for a secondary cell is characterized in that the additive includes a compound represented by formula (I), and the content of the compound is 0.05-10 mass% per 100 mass parts of the solvent total. The non-aqueous electrolyte secondary cell which employs 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 (I), R1 and R2 are each independently a hydrogen atom, a methyl group, or an amino group; n is 1, 2, or 4; and Y is a hydrogen atom or a monovalent organic group if n is 1, a divalent organic group if n is 2, and a tetravalent organic group if n is 4.)