Apparatus and process for producing electricity storage material

A production apparatus (1) for producing an electricity storage material is provided. The electricity storage material includes at least a thickener and an active material. The production apparatus includes a solution production device (2) and a mixture-kneading device (5). The solution production device (2) produces a surfactant-containing solution of the thickener. The mixture-kneading device (5) kneads the solution together with a powder of the active material. A method for producing an electricity storage material which includes at least a thickener and an active material, the method comprising a solution production step in which a surfactant-containing solution of the thickener is produced, and a mixture-kneading step in which the solution is kneaded together with a powder of the active material. The solution production step may also include a viscosity regulation step. The surfactant may be a fluorine-containing material.