公开(公告)号：US20240327237A1

公开(公告)日：2024-10-03

申请号：US18595444

申请日：2024-03-05

申请人： HONDA MOTOR CO., LTD. ,  NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

发明人： Kazumasa SAKATSUME ,  Yoshiyuki MORITA ,  Yoshiya FUJIWARA ,  Akihisa TANAKA ,  Kazuki CHIBA ,  Takashi HAKARI ,  Junji AKIMOTO ,  Kunimitsu KATAOKA

IPC分类号： C01G45/12 ,  H01M4/505

CPC分类号： C01G45/12 ,  H01M4/505 ,  C01P2002/72 ,  C01P2006/40

摘要： The invention provides a secondary battery positive electrode active material including an oxide containing Li, Mn, and Ti, wherein the oxide has a Li content of 43 to 60 mol %, a Mn content of 22 to 35 mol %, and a Ti content of 7 to 29 mol %, the oxide has an X-ray diffraction pattern that is measured using CuKα as an X-ray source and has a maximum X-ray diffraction peak exhibiting the highest peak intensity and existing at an angle in the range of 43 to 45 degrees, the oxide satisfies the formula 0.70

公开(公告)号：US20240322133A1

公开(公告)日：2024-09-26

申请号：US18589483

申请日：2024-02-28

申请人： HONDA MOTOR CO., LTD.

发明人： Kazuki CHIBA ,  Kazumasa SAKATSUME ,  Takashi HAKARI ,  Akihisa TANAKA ,  Yoshiya FUJIWARA ,  Yoshiyuki MORITA

IPC分类号： H01M4/36 ,  C01G53/00 ,  H01M4/02 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052

CPC分类号： H01M4/366 ,  C01G53/50 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/86 ,  C01P2006/40 ,  H01M2004/028

摘要： A cathode active material for a lithium secondary battery contains a lithium transition metal composite oxide as a main component, the lithium transition metal composite oxide is in a form of particles having a layered structure of a lithium layer and a transition metal-lithium layer, the lithium transition metal composite oxide is expressed by General Formula (1) LimNixMnyTizO2 (in the formula, m is in a range of 1.0