Method for producing active material

Abstract

A main object of the present disclosure is to provide a method for producing an active material with a high productivity. The present disclosure achieves the object by providing a method for producing an active material, the method comprising steps of: a preparing step of preparing a dope solution including a metal ion that is an ion of a metal element M, and an aromatic hydrocarbon compound in a reduced condition, a precursor alloy producing step of producing a precursor alloy by doping the metal element M included in the dope solution to a Si raw material including a Si element, and a void forming step of forming a void by extracting the metal element M from the precursor alloy using an extracting agent.

Dependencies are inferred from the claim text.