METHOD FOR PRODUCING SULFIDE SOLID-STATE BATTERY, AND SULFIDE SOLID-STATE BATTERY

A method for producing a sulfide solid-state battery in which, an anode mixture (a) is layered over a surface of an anode current collector, to form an anode mixture layer A, the anode mixture (a) containing a polyamic acid, and silicon-based active material but not containing a sulfide solid electrolyte; the anode mixture layer A is heated to imidize the polyamic acid, to make an anode mixture layer A; a sulfide solid electrolyte is layered over a surface of the anode mixture layer A; to be pressed to insert the sulfide solid electrolyte into a void in the anode mixture layer A, to make an anode mixture layer A; and thereafter an anode mixture (b) is layered over a surface of the anode mixture layer A, to form an anode mixture layer B, the anode mixture (b) containing carbonaceous active material and binder.