SOLID ELECTROLYTE MATERIAL AND BATTERY USING THE SAME

A solid electrolyte material contains Li, Sn, M1, and F, where M1 is at least one selected from the group consisting of Al, Y, Zr, Ti, and Mg. A battery includes: a positive electrode; a negative electrode; and a separator layer between the positive electrode and the negative electrode. At least one selected from the group consisting of the positive electrode, the negative electrode, and the separator layer contains the solid electrolyte material.