公开(公告)号：US20190148726A1

公开(公告)日：2019-05-16

申请号：US16192729

申请日：2018-11-15

Applicant: Samsung SDI Co., Ltd.

Inventor： Youngjoo CHAE ,  Kitae KIM ,  Young-Ki KIM ,  Jungjoon PARK ,  Dong-Hwan YU ,  Soonrewl LEE ,  Hyerim LEE ,  Ickkyu CHOI ,  Soonkie HONG ,  Kisoo LEE

IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/505

Abstract: A positive active material for a rechargeable lithium battery, and a rechargeable lithium battery and a battery module including the same are provided. The positive active material may include a lithium nickel-manganese-cobalt composite oxide with a coating layer on the surface. The coating layer on the surface may include a lithium oxide including Al and/or W, for example, Al and W.

公开(公告)号：US20200251736A1

公开(公告)日：2020-08-06

申请号：US16758509

申请日：2018-10-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Suho SONG ,  Sangbok KIM ,  Joongho MOON ,  Junghwan PARK ,  Kisoo LEE ,  Joohan SONG

IPC: H01M4/587 ,  H01M10/0525 ,  H01M4/36

Abstract: The present invention relates to an anode active material for lithium secondary battery and a lithium secondary battery comprising the same. The anode active material for lithium secondary batteries comprises two kinds of crystalline carbon, with the peak intensity ratio of 3R(101) face to 2H(100) face I3R(101)/I2H(100) ranging from 0.55 to 0.7 in an X-ray diffraction pattern.