Electrode sheet for all-solid-state secondary battery, and all-solid-state secondary battery

Abstract

An electrode sheet for an all-solid-state secondary battery having an active material layer on at least one surface of a current collector, and an all-solid-state secondary battery having the electrode sheet as at least one electrode, the active material layer includes an inorganic solid electrolyte (A) having conductivity of ions of a metal belonging to group 1 or group 2 of the periodic table and an active material (B), and satisfies formula (1) and formula (2). Formula (1): 1.4 < S1 / S100, and Formula (2): 0.05 < S1 < 0.60. S1 represents the area ratio of the total area of the carbon atom-containing material in a cross-sectional region of 1% or less of the layer thickness of the active material layer from the surface of the current collector, and S100 represents the area ratio of the total area of the carbon atom-containing material in a cross-sectional region of more than 1% of the layer thickness of the active material layer from the surface of the current collector.

Images