A chemical agent including a fluorine-containing polyaluminum chloride, wherein the chemical agent has 4,500 to 100,000 ppm by mass of fluorine per part by mass of aluminum. Also disclosed is a method for producing a fluorine-containing polyaluminum chloride.

A chemical agent including a fluorine-containing polyaluminum chloride, wherein the chemical agent has 4,500 to 100,000 ppm by mass of fluorine per part by mass of aluminum. Also disclosed is a method for producing a fluorine-containing polyaluminum chloride.

The solid electrolyte material of the present disclosure comprises Li, M, I, and X. M is at least one element selected from the group consisting of Al, Ga, and In. X is at least one element selected from the group consisting of F, O, and S. The battery of the present disclosure comprises a positive electrode, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode. At least one selected from the group consisting of the positive electrode, the negative electrode, and the electrolyte layer contains the solid electrolyte material of the present disclosure.

The solid electrolyte material of the present disclosure comprises Li, M, I, and X. M is at least one element selected from the group consisting of Al, Ga, and In. X is at least one element selected from the group consisting of F, O, and S. The battery of the present disclosure comprises a positive electrode, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode. At least one selected from the group consisting of the positive electrode, the negative electrode, and the electrolyte layer contains the solid electrolyte material of the present disclosure.