公开(公告)号：US20170346133A1

公开(公告)日：2017-11-30

申请号：US15608812

申请日：2017-05-30

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Hyun-Joo JE ,  Jeong-Hoon KIM ,  Ji-Hyun KIM ,  Soo-Youn PARK ,  Chang-Wook KIM

IPC: H01M10/0525 ,  H01M4/36 ,  H01M10/0587 ,  H01M4/525 ,  H01M4/38 ,  H01M4/66 ,  H01M4/13 ,  H01M4/86 ,  H01M4/02

Abstract: The present invention relates to a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes: a current collector; and a positive electrode active material positioned on at least one surface of the active material layer current collector. The positive electrode active material layer includes a small particle size active material having an average particle diameter D50 of 2 μm to 4 μm and a first coating layer positioned at a surface thereof, and a large particle size active material having an average particle diameter D50 of 17 μm to 21 μm and a second coating layer positioned at the surface thereof.

公开(公告)号：US20170358794A1

公开(公告)日：2017-12-14

申请号：US15613716

申请日：2017-06-05

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Young-Hun LEE ,  Ji-Yeon JANG ,  Soon-Kie HONG ,  Young-Ki KIM ,  Soon-Rewl LEE ,  Ick-Kyu CHOI ,  Ji-Hyun KIM ,  Soo-Youn PARK ,  Hyun-Joo JE ,  Chang-Wook KIM ,  Kyu-Suk HAN

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/48 ,  H01M4/525 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/366 ,  H01M4/483 ,  H01M4/525 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The positive active material includes a core including a lithium intercalation compound and a crystalline coating compound on a surface of the core and including a crystalline aluminum hydroxide, a crystalline aluminum oxyhydroxide, or a combination thereof.