公开(公告)号：US11152641B2

公开(公告)日：2021-10-19

申请号：US16327804

申请日：2017-08-23

Applicant: Tokyo Institute of Technology

Inventor： Ryoji Kanno ,  Masaaki Hirayama ,  Kota Suzuki ,  Yulong Sun ,  Satoshi Hori

IPC: H01M10/0562 ,  C01B33/00 ,  C01G19/00 ,  H01M6/18 ,  C04B35/547 ,  H01B1/06 ,  C01D15/00 ,  H01M10/0525

Abstract: Provided is a sulfide solid electrolyte material which has a composition that does not contain Ge, while having a smaller Li content than conventional sulfide solid electrolyte materials, and which has both lithium ion conductivity and chemical stability at the same time. A sulfide solid electrolyte which has a crystal structure represented by composition formula (Li3.45+β−4αSnα)(Si0.36Sn0.09)(P0.55−βSiβ)S4 (wherein α≤0.67, β≤0.33 and 0.43