Non-aqueous electrolyte solution for secondary cell, and non-aqueous electrolyte secondary cell

• Main Authors: SHISHIKURA TOSHIKAZU, SAITO SHUNSUKE, IRIE KOJI, HASATANI AKIO
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2014
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

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.)