公开(公告)号：US20240258561A1

公开(公告)日：2024-08-01

申请号：US18289845

申请日：2022-04-19

Applicant: GS Yuasa International Ltd.

Inventor： Akihiro FUKUSHIMA ,  Katsuya NISHII

IPC: H01M10/0562 ,  C04B35/547

CPC classification number: H01M10/0562 ,  C04B35/547 ,  C04B2235/3865 ,  C04B2235/444 ,  C04B2235/446 ,  H01M2300/008

Abstract: A sulfide solid electrolyte according to an aspect of the present invention includes a crystal structure and contains, as constituent elements, one, or two or more divalent elements A, one, or two or more halogen elements X, and a nitrogen element, and the divalent element A and the halogen element X make a combination such that a compound A0.5X composed of the divalent element A and the halogen element X is higher in hydration energy than LiI.

公开(公告)号：US20230387456A1

公开(公告)日：2023-11-30

申请号：US18265852

申请日：2021-12-09

Applicant: GS Yuasa International Ltd.

Inventor： Akihiro FUKUSHIMA ,  Katsuya NISHII

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068 ,  H01M2220/20

Abstract: One aspect of the present invention is a sulfide solid electrolyte, having diffraction peaks in a range of 19.9°±0.5° and a range of 23.6°±0.5° in an X-ray diffraction diagram using a CuKα ray and including one or two or more kinds of divalent elements A and one or two or more kinds of halogen elements X, in which the divalent element A and the halogen element X are a combination in which hydration energy of a compound A0.5X composed of the divalent element A and the halogen element X is greater than hydration energy of LiI.

公开(公告)号：US20210194050A1

公开(公告)日：2021-06-24

申请号：US17270762

申请日：2019-08-30

Applicant: GS Yuasa International Ltd.

Inventor： Akihiro FUKUSHIMA ,  Katsuya NISHII ,  Ryo SAKUMA ,  Tadashi KAKEYA ,  Ryuya OCHI

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A method for producing a sulfide solid electrolyte according to an embodiment of the present invention is a method for producing a sulfide solid electrolyte, including: preparing a composition containing P, S, N, an element A, and an element M; reacting the composition to obtain an intermediate; and heating the intermediate to obtain a sulfide solid electrolyte, where the composition includes a raw material compound containing N, the element A, and the element M. A represents at least one element selected from the group consisting of Li, Na, and K. M represents at least one element selected from the group consisting of Al, Ta, Si, Sc, Mg, Nb, B, Hf, C, P, Zr, and Ti.