NONAQUEOUS ELECTROLYTE, AND NONAQUEOUS ELECTROLYTE BATTERY

• Main Authors: MORINAKA, Takayoshi, KAWABATA, Wataru, ESAKI, Ryota, TAKAHASHI, Mikihiro, TANAKA, Toru, HARADA, Shuji, ITAKURA, Tsubasa, SUZUKI, Katsutoshi, TAKAHASHI, Arata
• Format: Patent
• Language: English; French; German
• Published: 12.07.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A nonaqueous electrolytic solution for a nonaqueous electrolytic solution battery including a positive electrode which contains an oxide containing at least nickel as a positive electrode active material and has a content of nickel of 30% by mass to 100% by mass in a metal contained in the positive electrode active material, the nonaqueous electrolytic solution including: (I) a nonaqueous solvent; (II) a solute; and (III) a compound represented by General Formula [1], in which a content of (III) is 0.001% by mass to 1.8% by mass with respect to 100% by mass of a total amount of (I) to (III),        R(SO2X)m     [1]in which R represents monovalent to tetravalent groups containing at least one carbon atom, and the group may contain at least one selected from the group consisting of hydrogen atoms, halogen atoms, unsaturated bonds, aromatic rings, oxygen atoms, and ester bonds. X represents a halogen atom or a linear or branched perfluoroalkyl group having 1 to 10 carbon atoms. m represents an integer of 1 to 4. when m represents an integer of 2 to 4, a plurality of X may be the same or different.