公开(公告)号：EP3163665B1

公开(公告)日：2020-05-06

申请号：EP15811111.2

申请日：2015-06-08

申请人： TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： KANNO, Ryoji ,  HIRAYAMA, Masaaki ,  SUZUKI, Kota ,  HORI, Satoshi ,  KATO, Yuki

IPC分类号： H01M4/62 ,  H01M10/052 ,  H01M10/0562 ,  C01B17/22 ,  C01B25/14

公开(公告)号：EP3505500A1

公开(公告)日：2019-07-03

申请号：EP17843642.4

申请日：2017-08-23

申请人： Tokyo Institute of Technology

发明人： KANNO, Ryoji ,  HIRAYAMA, Masaaki ,  SUZUKI, Kota ,  SUN, Yulong ,  HORI, Satoshi

IPC分类号： C04B35/547 ,  C01B33/00 ,  H01B1/06 ,  H01M6/18 ,  H01M10/0562

摘要： 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 (Li 3.45+β-4α Sn α )(Si 0.36 Sn 0.09 )(P 0.55-β Si β )S 4 (wherein α ≤ 0.67, β ≤ 0.33 and 0.43 7+γ Si γ P 1-γ S 6 (wherein 0.1 ≤ γ