Sulfide solid electrolyte glass ceramic and manufacturing method for same

Abstract

Provided is a sulfide solid electrolyte glass ceramic containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom and having peaks at diffraction angles (2θ) of 20.2° and 29.3° in X-ray diffractometry using CuKα line. Due to an intensity ratio (PA/PB) of a peak intensity (PA) of the peak appearing at 2θ=20.2° to a peak intensity (PB) of the peak appearing at 2θ=29.3° made into more than 1.0, the sulfide solid electrolyte glass ceramic has a high ionic conductivity and has an increased water resistance. A method for producing the sulfide solid electrolyte glass ceramic is also provided.

Dependencies are inferred from the claim text.