Sulfide solid electrolyte material, battery, and producing method for sulfide solid electrolyte material
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United States of America Patent
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Aug 29, 2017
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Apr 16, 2014
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Apr 16, 2013
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Abstract
A sulfide solid electrolyte material with favorable ion conductivity and high reduction resistance. The object is attained by providing sulfide solid electrolyte material comprising: Li element; Ge element; P element; and S element, wherein the sulfide solid electrolyte material peaks at a position of 2θ=29.58°±0.50° in X-ray diffraction measurement using CuKα ray, the sulfide solid electrolyte material does not peak at a position of 2θ=27.33°±0.50° in X-ray diffraction measurement using CuKα ray or when diffraction intensity at the peak of 2θ=29.58°±0.50° is regarded as IA and diffraction intensity at the peak of 2θ=27.33°±0.50° is regarded as IB, a value of IB/IA is less than 1.0, and part of the P element in a crystal phase peaking at the position of 2θ=29.58°±0.50° is substituted with a B element.
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