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：US20170194626A1

公开(公告)日：2017-07-06

申请号：US15314736

申请日：2015-06-25

Applicant: TODA KOGYO CORP.

Inventor： Takayuki YAMAMURA ,  Tetsuya KASHIMA ,  Ryuta MASAKI ,  Kazumichi KOGA

IPC: H01M4/131 ,  H01M10/052 ,  H01M4/04 ,  H01M4/52 ,  H01M4/525 ,  H01M4/1391 ,  H01M4/505

CPC classification number: H01M4/131 ,  C01G53/50 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/82 ,  C01P2006/12 ,  H01M4/049 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/483 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M10/052

Abstract: An object of the present invention is to provide positive electrode active substance particles for non-aqueous electrolyte secondary batteries which are excellent in D.C. resistance characteristics under low-temperature conditions and a process for producing the provide positive electrode active substance particles, and a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries, comprising lithium composite oxide particles having a layered rock salt structure which are chemically reacted with at least Li and comprise at least one element selected from the group consisting of Ni, Co and Mn, and tungsten oxide particles, in which W is present in an amount of 0.1 to 4.0 mol % based on a total molar amount of Ni, Co and Mn in the lithium composite oxide particles, and the tungsten oxide particles have an average secondary particle diameter of 0.1 to 3.0 μm.

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.