| abstract |
An object of the present invention is to provide an electrode body manufacturing method capable of suppressing a decrease in capacity of an oxide active material while improving Li ion conductivity of a sulfide solid electrolyte material. In the present invention, there is provided a heating step of heating an oxide active material and an amorphous sulfide solid electrolyte material in contact with each other, and the oxide active material is formed into a rock salt layer shape. A ionic conductor containing a Li element, a P element and an S element, and containing PS 4 3- as a main component of an anion structure, LiI, and LiBr. Provided is a method for producing an electrode body, characterized in that the heating temperature in the heating step is not less than the crystallization start temperature of the sulfide solid electrolyte material and not more than the crystallization peak temperature of the sulfide solid electrolyte material. This solves the above problem. [Selection] Figure 4 |