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US 10,483,587 B2Granted
Sulfide solid electrolyte
AssigneeIdemitsu Kosan Co., Ltd.
InventorsKota Terai, Futoshi Utsuno, Takashi Umeki, Masaru Nakagawa, Hiroshi Yamaguchi
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Abstract
A sulfide solid electrolyte containing lithium, phosphorus, sulfur, and two or more of elements X selected from halogen elements, where the sulfide solid electrolyte includes an argyrodite-type crystal structure, and a molar ratio of the sulfur to the phosphorus “b (S/P)” and a molar ratio of the element X to the phosphorus “c (X/P)” satisfy the following formula (1): 0.23<c/b<0.57 (1).
Claims20
A sulfide solid electrolyte, comprising lithium, phosphorus, sulfur, and two or more of elements X selected from the group consisting of halogen elements,
- wherein the sulfide solid electrolyte comprises an argyrodite-type crystal structure, and
- wherein a molar ratio of the sulfur to the phosphorus, b (S/P), and a molar ratio of the elements X to the phosphorus, c (X/P), satisfy formula (1):
- 0.23<c/b<0.57 (1).
Dependencies are inferred from the claim text.