Solid electrolyte material including sulfide layer and oxide layer, and battery incorporating the solid electrolyte material
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsIzuru Sasaki, Kazuyoshi Honda
Life of this patent
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Abstract
A sulfide solid electrolyte material includes a sulfide layer and an oxide layer disposed on the sulfide layer. The sulfide layer contains a sulfide that contains lithium, phosphorus, a halogen, and sulfur. The oxide layer contains an oxide that contains lithium, phosphorus, a halogen, and oxygen. In a 31P-NMR spectrum of the sulfide solid electrolyte material, a first peak component, which is defined within a first chemical shift range from 87.6 to 88.4 ppm, has an intensity equal to or less than 0.42 times that of a second peak component, which is defined within a second chemical shift range from 83.6 to 84.4 ppm.
Claims10
A sulfide solid electrolyte material comprising:
- a sulfide particle containing a sulfide that contains lithium, phosphorus, a halogen and sulfur;
- and
- an oxide layer covering a surface of the sulfide particle, the oxide layer containing an oxide that contains lithium, phosphorus, the halogen and oxygen, wherein
- in a 31P-NMR spectrum of the sulfide solid electrolyte material, a first peak component, which is defined within a first chemical shift range from 87.6 to 88.4 ppm, has an intensity equal to or less than 0.42 times intensity of a second peak component, which is defined within a second chemical shift range from 83.6 to 84.4 ppm.
A sulfide solid electrolyte material comprising:
- a plurality of sulfide bodies each containing a sulfide that contains lithium, phosphorus, a halogen, and sulfur, and having a shape of a needle, a flake, a sphere, or an ellipsoid;
- and
- an oxide layer covering a surface of each of the plurality of sulfide bodies, the oxide layer containing an oxide that contains lithium, phosphorus, the halogen, and oxygen.
Dependencies are inferred from the claim text.