SOLUTION FOR FORMING LAYER THAT CONTAINS SOLID ELECTROLYTE FOR ALL-SOLID-STATE ALKALI METAL SECONDARY BATTERIES, COATED ACTIVE MATERIAL PARTICLES, ELECTRODE, ALL-SOLID-STATE ALKALI METAL SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

摘要

A solution for forming a layer that contains a solid electrolyte for all-solid-state alkali metal secondary batteries, which contains a component derived from A2S and MxSy (wherein A is selected from among Li and Na, M is selected from among P, Si, Ge, B, Al and Ga, and x and y are numbers that provide a stoichiometric ratio according to the kind of M), which are starting materials for solid electrolyte production, a non-polar organic solvent, and a polar organic solvent having a polarity value higher than that of the non-polar organic solvent by 0.3 or more.