Lithium nitride composition for sulfide-based inorganic solid electrolyte material
AssigneeFurukawa Co., Ltd.
InventorsTetsuya Matsubara, Tatsushi Yoshida, Motoshi Tamura, Kazutomi Yamamoto
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Abstract
Provided is a lithium nitride composition for a sulfide-based inorganic solid electrolyte material including α-lithium nitride, wherein in a spectrum obtained by X-ray diffraction in which a CuKα ray is used as a radiation source, when a diffraction intensity of a diffraction peak present at a position of a diffraction angle 2θ=23.0±0.3° is represented by Iα and a diffraction intensity of a diffraction peak present at a position of a diffraction angle 2θ=32.0±0.3° is represented by Iβ, a value of Iβ/Iα is 4.50 or lower.
Claims6
A method of manufacturing a lithium nitride composition for a sulfide-based inorganic solid electrolyte material, the method comprising:
- a step of nitriding lithium foil in a nitrogen gas;
- a step of mechanically processing the obtained lithium nitride foil such that the lithium nitride foil is powdery;
- and
- a step of annealing the obtained powdery lithium nitride,
- wherein the lithium nitride composition comprises α-lithium nitride
- wherein in a spectrum obtained by X-ray diffraction in which a CuKα ray is used as a radiation source, when a diffraction intensity of a diffraction peak present at a position of a diffraction angle 2θ=23.0±0.3° is represented by Iα and a diffraction intensity of a diffraction peak present at a position of a diffraction angle 2θ=32.0±0.3° is represented by Iβ,
- a value of Iβ/Iα is 4.50 or lower;
- and
- wherein the temperature during the nitriding reaction of the lithium foil is in a range of 10° C. or higher and 120° C. or lower.
Dependencies are inferred from the claim text.