公开(公告)号：US20170237068A1

公开(公告)日：2017-08-17

申请号：US15584759

申请日：2017-05-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiroki INAGAKI ,  Wen ZHANG ,  Yasuhiro HARADA ,  Keigo HOSHINA ,  Yuki OTANI ,  Norio TAKAMI

IPC: H01M4/485 ,  C01G23/04 ,  H01M10/0525 ,  H01M10/0565 ,  H01M4/62 ,  C01G23/00 ,  H01M10/056

CPC classification number: H01M4/485 ,  B60L50/16 ,  B60L50/61 ,  B60L50/66 ,  B60L58/27 ,  B60L2260/28 ,  C01G23/002 ,  C01G23/003 ,  C01G23/005 ,  C01G23/04 ,  C01G53/50 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/40 ,  H01M2/0287 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/425 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/6217 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7077

Abstract: According to one embodiment, there is provided an active material for a battery. The active material includes secondary particle which contains primary particles of a monoclinic β-type titanium composite oxide having an average primary particle diameter of 1 nm to 10 μm. The secondary particle has an average secondary particle diameter of 1 μm to 100 μm. The secondary particle has compression fracture strength of 20 MPa or more.