Manufacturing Method of Electrode Material, and Electric Storage Device

摘要

When a layered crystal material of vanadium pentoxide that can be used as a positive electrode active material is manufactured, no sulfur-containing organic material is used as a raw material in the present invention. Therefore, any uncertain adhesion of a sulfur-containing organic material to the layered crystal material is eliminated. The property of the suspension containing a vanadium compound and a plurality of lithium compounds such as lithium sulfide and lithium hydroxide is adjusted by using these lithium compounds. By such an adjustment, the pentavalence of the vanadium ions is controlled to be a desired ratio. Consequently, an active material having reproducibility can be manufactured. First discharge energy of a lithium ion secondary battery using the active material can be enhanced.