公开(公告)号：US20240136509A1

公开(公告)日：2024-04-25

申请号：US18268022

申请日：2021-11-15

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： Ohmin KWON ,  Sang Cheol NAM ,  Kwon Young CHOI ,  Jung Hoon SONG ,  Sanghyuk LEE ,  Inchul PARK

IPC分类号： H01M4/36 ,  C01G53/00 ,  H01M4/38 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052

CPC分类号： H01M4/366 ,  C01G53/006 ,  C01G53/50 ,  H01M4/38 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028

摘要： A positive electrode active material for a lithium secondary battery, a manufacturing method thereof, and it is provided a positive electrode active material for a lithium secondary battery, comprising: a core containing a lithium nickel-based compound having a Ni content of 80 mol % or more; and a coating material positioned on at least a portion of the core surface; wherein, the coating material includes a first coating material containing at least one of group 5 elements and group 6 elements; and S; and a second coating material including B, LiOH, Li2CO3 and Li2SO4.

公开(公告)号：US20230039543A1

公开(公告)日：2023-02-09

申请号：US17786888

申请日：2020-12-18

申请人： POSCO ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： Ohmin KWON ,  Kwon Young CHOI ,  Sang Hyuk LEE ,  Jung Hoon SONG ,  Jong Il PARK ,  Sang Cheol NAM ,  Inchul PARK ,  Geun HWANGBO

IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/525

摘要： Provided are a positive electrode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same.
According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery which includes lithium metal oxide particles and a coating layer placed on at least a part of a surface of the lithium metal oxide particles may be provided, wherein the coating layer includes B, LiOH, Li2CO3, and Li2SO4.

公开(公告)号：US20240063428A1

公开(公告)日：2024-02-22

申请号：US18268261

申请日：2021-12-14

申请人： RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： Ohmin KWON ,  Ji Woong MOON ,  Sang Cheol NAM ,  Yong Sun PARK

IPC分类号： H01M10/0562 ,  H01M10/052

CPC分类号： H01M10/0562 ,  H01M10/052 ,  H01M2300/008

摘要： It relates to a solid electrolyte and an all-solid-state battery containing it, which contains a sulfur compound represented by Chemical Formula 1 below and B in an amount of 10 ppm to 100,000 ppm.


Li7-xPS6-xCl1-yBry  [Chemical Formula 1]

(In the Chemical Formula 1, 1