Method for filling with electrode active material and method for producing all-solid-state cell

摘要

A solid electrolyte structure containing a porous solid electrolyte is prepared (S1). At least the porous solid electrolyte of the solid electrolyte structure is immersed in a first sol solution containing at least a precursor of an electrode active material as a solute (S2). Then, the first sol solution, in which the porous solid electrolyte is immersed, is heated. A solvent of the first sol solution is evaporated by the heating, whereby a pore of the porous solid electrolyte is filled with a high concentration (a large amount) of the electrode active material precursor.