METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a positive electrode for a nonaqueous electrolytic solution secondary battery that can suppress elution of a constituent element of a positive electrode active material from the positive electrode active material.SOLUTION: A method of manufacturing a positive electrode for a nonaqueous electrolytic solution secondary battery comprises: a composite positive electrode active material adjusting step S10 for mixing a positive electrode active material containing tungsten (W) as a constituent element and lithium fluoride and applying mechanical energy to the mixture to achieve a composite positive electrode active material in which a lithium fluoride coating is formed on the surface of the tungsten-contained positive electrode active material; a granulation step S20 of adding the achieved composite positive electrode active material with at least electrically conductive material and binder and granulating these materials to achieve a granulated body containing at least the composite positive electrode active material, the electrically conductive material and the binder; and a positive electrode active material layer forming step S30 of forming a positive electrode active material layer on the surface of a positive electrode collector by using the achieved granulated body.SELECTED DRAWING: Figure 1