Negative electrode for all-solid-state secondary battery, and all-solid-state secondary battery

Abstract

A negative electrode for an all-solid-state secondary battery according to the present invention includes a molded body made of a negative-electrode mixture containing a solid electrolyte and a negative-electrode material that contains a negative-electrode active material. The negative-electrode material contains a carbon material as the negative-electrode active material, and an argyrodite-type sulfide-based solid electrolyte is contained as the solid electrolyte. An AB value is 0.1 or more and 0.8 or less where a percentage of the area of the carbon material to the area of a surface of the molded body is A(%) and a percentage of the area of the carbon material to the area of a cross-section of the molded body is B(%). Also, an all-solid-state secondary battery according to the present invention includes the negative electrode for an all-solid-state secondary battery according to the present invention as the negative electrode.

Dependencies are inferred from the claim text.