公开(公告)号：US10547047B2

公开(公告)日：2020-01-28

申请号：US15527417

申请日：2015-11-20

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Hiroaki Masukuni ,  Kazutoshi Matsumoto

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/02

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：US20150037677A1

公开(公告)日：2015-02-05

申请号：US14380523

申请日：2013-02-22

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Ryuta Masaki ,  Akihisa Kajiyama ,  Hiroaki Masukuni

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/50

CPC classification number: H01M4/364 ,  C01G25/00 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/62 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M8/04671 ,  H01M10/0525 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries, comprising an oxide having a spinel structure and comprising at least Li and Mn as main components and an oxide comprising at least Li and Zr, in which the oxide comprising at least Li and Zr forms a mixed phase comprising two or more phases, and a content of the oxide comprising at least Li and Zr in the positive electrode active substance particles is 0.1 to 4% by weight. The present invention provides positive electrode active substance particles for non-aqueous electrolyte secondary batteries which are excellent in high-temperature characteristics and a process for producing the positive electrode active substance particles, and a non-aqueous electrolyte secondary battery.

Abstract translation: 本发明涉及非水电解质二次电池用正极活性物质粒子，其包含具有尖晶石结构且至少包含Li和Mn作为主要成分的氧化物和至少包含Li和Zr的氧化物，其中包含 至少Li和Zr形成包含两相或更多相的混合相，并且正极活性物质颗粒中至少包含Li和Zr的氧化物的含量为0.1至4重量％。 本发明提供高温特性优异的非水电解质二次电池用正极活性物质粒子和正极活性物质粒子的制造方法以及非水电解质二次电池。

公开(公告)号：US11127940B2

公开(公告)日：2021-09-21

申请号：US16712161

申请日：2019-12-12

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Hiroaki Masukuni ,  Kazutoshi Matsumoto

IPC: H01M4/131 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/505 ,  C01G45/12 ,  H01M10/0525 ,  H01M4/02

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：US10446843B2

公开(公告)日：2019-10-15

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 ,  C01G45/12 ,  H01M4/131 ,  C01G41/00

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.

公开(公告)号：US09515315B2

公开(公告)日：2016-12-06

申请号：US14380523

申请日：2013-02-22

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Ryuta Masaki ,  Akihisa Kajiyama ,  Hiroaki Masukuni

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/50 ,  C01G25/00 ,  H01M4/505 ,  H01M4/485 ,  H01M8/04

CPC classification number: H01M4/364 ,  C01G25/00 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/62 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M8/04671 ,  H01M10/0525 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries, comprising an oxide having a spinel structure and comprising at least Li and Mn as main components and an oxide comprising at least Li and Zr, in which the oxide comprising at least Li and Zr forms a mixed phase comprising two or more phases, and a content of the oxide comprising at least Li and Zr in the positive electrode active substance particles is 0.1 to 4% by weight. The present invention provides positive electrode active substance particles for non-aqueous electrolyte secondary batteries which are excellent in high-temperature characteristics and a process for producing the positive electrode active substance particles, and a non-aqueous electrolyte secondary battery.

Abstract translation: 本发明涉及非水电解质二次电池用正极活性物质粒子，其包含具有尖晶石结构且至少包含Li和Mn作为主要成分的氧化物和至少包含Li和Zr的氧化物，其中包含 至少Li和Zr形成包含两相或更多相的混合相，并且正极活性物质颗粒中至少包含Li和Zr的氧化物的含量为0.1至4重量％。 本发明提供高温特性优异的非水电解质二次电池用正极活性物质粒子和正极活性物质粒子的制造方法以及非水电解质二次电池。

公开(公告)号：US10892483B2

公开(公告)日：2021-01-12

申请号：US16561761

申请日：2019-09-05

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Hiroaki Masukuni ,  Kazutoshi Matsumoto

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

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.