Sulfide solid electrolyte, all solid state battery, and method for producing sulfide solid electrolyte
AssigneesTokyo Institute of Technology, Toyota Jidosha Kabushiki Kaisha
InventorsRyoji Kanno, Satoshi Hori, Keiichi Minami, Shinya Shiotani
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Abstract
A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.
Claims14
A sulfide solid electrolyte comprising a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein:
- when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.
Dependencies are inferred from the claim text.