Production apparatus and production method for electric storage material

A production apparatus (1) for an electric storage material includes a dissolution device (2) that dissolves a thickener in a solvent by applying vibration to the solvent, and a kneading device (4) that kneads a solution of the thickener having an adjusted viscosity and an active substance. The thickener is dissolved in the solvent, and a powder of the active substance and the like are dispersed and kneaded in the solution of the thickener having the adjusted viscosity. Thus, kneading can be performed in a short time, and damage to the active substance can be suppressed.