Sulfur-containing compound, solid electrolyte, and battery
AssigneeMitsui Mining & Smelting Co., Ltd.
InventorsTsukasa Takahashi, Takahiro Ito, Masaru Hyakutake, Teruaki Yagi
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Abstract
A sulfur-containing compound containing a lithium (Li) element, a phosphorus (P) element, a sulfur (S) element, and a halogen (X) element, which can be suitably used as a solid electrolyte, and is able to suppress the generation of a hydrogen sulfide gas even when exposed to moisture in the atmosphere. The sulfur-containing compound has a peak at each position of 2θ=21.3°±1.0°, 27.8°±1.0°, and 30.8°±0.5° in an X-ray diffraction pattern measured by an X-ray diffraction apparatus (XRD) using CuKα1 rays.
Claims13
A sulfur-containing compound, comprising a lithium (Li) element, a phosphorus (P) element, a sulfur (S) element, and a halogen (X) element, and having a peak at each position of 2θ=21.3°±1.0°, 27.8°±1.0°, and 30.8°±0.5° and at least two peaks, referred to as peak D and peak E, respectively in a range of 2θ=25° or more and 2θ=26.0° or less, in an X-ray diffraction pattern measured by an X-ray diffraction apparatus (XRD) using CuKα1 rays,
- wherein the sulfur-containing compound is represented by a general formula of LiaPSbXc, wherein X is at least one of F, Cl, Br, and I, a is in a range of 3.0 or more and 6.0 or less, b is in a range of 3.5 or more and 4.8 or less, and c is in a range of 0.1 or more and 3.0 or less.
Dependencies are inferred from the claim text.