Nonaqueous electrolytic solution and nonaqueous electrolyte secondary battery

Abstract

A nonaqueous electrolyte solution according to the present disclosure includes a nonaqueous solvent, an electrolyte dissolved in the nonaqueous solvent, and particles of a phosphorus-containing compound. The particles of the phosphorus-containing compound are insoluble in the nonaqueous solvent. The phosphorus-containing compound includes at least one selected from the group consisting of Li3PO4, Na3PO4, K3PO4, LiPO3, LiPO3F, metaphosphoric acid, and calcium phosphate. The nonaqueous electrolyte solution according to the present disclosure has fluidity at 25° C. A secondary battery 100 according to the present disclosure includes a positive electrode 5, a negative electrode 6, and the nonaqueous electrolyte solution according to the present disclosure.

Dependencies are inferred from the claim text.