ELECTRODE MATERIAL, ELECTRICITY STORAGE DEVICE PROVIDED WITH ELECTRODE MATERIAL, AND METHOD FOR PRODUCING ELECTRODE MATERIAL

摘要

Provided are: a method for producing an electrode material having improved output characteristics; and an electricity storage device which is provided with the electrode material. A method for producing an electrode material wherein a carbon material is loaded with lithium cobalt oxide, said method comprising: a preparation step wherein a reaction liquid containing the carbon material and material sources of lithium cobalt oxide is prepared; a precursor loading step wherein the carbon material is loaded with a precursor of lithium cobalt oxide by applying a shear stress and a centrifugal force to the reaction liquid; and a heat treatment step wherein the carbon material loaded with the precursor is subjected to a heat treatment, thereby obtaining nano-sized lithium cobalt oxide. The output characteristics are improved by setting the electrode density of the thus-obtained electrode material to 2.5 g/cc or less.