METHOD FOR MANUFACTURING PRECURSOR FOR POWER STORAGE DEVICE MATERIAL, ELECTRODE FOR POWER STORAGE DEVICE INCLUDING POWER STORAGE DEVICE MATERIAL SYNTHESIZED VIA PRECURSOR, AND POWER STORAGE DEVICE INCLUDING ELECTRODE FOR POWER STORAGE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a very pure precursor of VPOcomponent inexpensively, the method capable of limiting the quantity of carbon.SOLUTION: The method comprises: a mixing step for wet-mixing, vanadium pentoxide and a phosphate compound as raw materials, and a carbon material as an additive by using a mixed solvent which includes water and alcohol having 4 or less carbon atoms; and a calcination step for calcinating the mixture obtained in the mixing step to generate VPOby a solid-phase reaction. The blending ratio of the water in the mixed solvent is within a range of 2 to 9 mole based on the vanadium pentoxide. Since the vanadium pentoxide as a raw material can be almost completely eliminated in the mixing step, the amount of impurities produced after the calcination can be reduced significantly.