公开(公告)号：US20190393500A1

公开(公告)日：2019-12-26

申请号：US16561761

申请日：2019-09-05

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi KOGA ,  Hiroaki MASUKUNI ,  Kazutoshi MATSUMOTO

IPC: H01M4/505 ,  H01M10/0525 ,  H01M4/131

Abstract: Positive electrode active material particle powder includes: lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 μm to 20 μm, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape having at least one plane that is adjacent to two planes.

公开(公告)号：US20180183039A1

公开(公告)日：2018-06-28

申请号：US15527417

申请日：2015-11-20

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi KOGA ,  Hiroaki MASUKUNI ,  Kazutoshi MATSUMOTO

IPC: H01M4/131 ,  H01M4/04 ,  H01M4/1391 ,  H01M10/0525

CPC classification number: H01M4/131 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/41 ,  C01P2004/61 ,  C01P2006/12 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/028

Abstract: Positive electrode active material particle powder includes lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 μm to 20 μm, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape in which each (111) plane thereof is adjacent to at least one (100) plane thereof.

公开(公告)号：US20170331106A1

公开(公告)日：2017-11-16

申请号：US15527426

申请日：2015-11-20

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi KOGA ,  Hiroaki MASUKUNI ,  Kazutoshi MATSUMOTO

IPC: H01M4/505 ,  H01M10/0525 ,  H01M4/131 ,  C01G41/00 ,  C01G45/12

CPC classification number: H01M4/505 ,  C01G41/00 ,  C01G45/1214 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2004/03 ,  C01P2004/41 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2006/12 ,  H01M4/131 ,  H01M10/0525

Abstract: Positive electrode active material particle powder includes: lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 μm to 20 μm, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape having at least one (110) plane that is adjacent to two (111) planes.