公开(公告)号：US20160211518A1

公开(公告)日：2016-07-21

申请号：US15002057

申请日：2016-01-20

申请人： SAMSUNG SDI CO., LTD.

发明人： Jeonjin Choi ,  Minhan Kim ,  Joong-Ho Moon ,  Haneol Park ,  Kyounghyun Kim ,  Dohyung Park ,  Dongjin Kim ,  Gyuran Jeon ,  Sun-Ho Kang

IPC分类号： H01M4/505 ,  H01M4/36 ,  H01M4/525 ,  H01M10/052

CPC分类号： H01M4/505 ,  C01G53/50 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2006/40 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/366 ,  H01M4/525 ,  H01M10/052

摘要： A positive active material represented by Formula 1 and a lithium secondary battery having a positive electrode that includes the positive active material are provided: Li1-aAaNixCoyMn1-x-yO2  Formula 1 wherein, in Formula 1, A is an alkali metal; 0.0025≦a≦0.02; 0.0

摘要翻译： 提供由式1表示的正极活性物质和具有包含正极活性物质的正极的锂二次电池：Li1-aAaNixCoyMn1-x-yO2式1其中，在式1中，A为碱金属; 0.0025＆nlE; a＆nlE; 0.02; 0.0

公开(公告)号：US10826064B2

公开(公告)日：2020-11-03

申请号：US16327244

申请日：2017-09-04

申请人： Samsung SDI Co., Ltd.

发明人： Daehoe Lee ,  Dongjin Kim ,  Minhan Kim ,  Ilseok Kim ,  Dohyung Park ,  Junseok Park ,  Okgyu Lim ,  Gyuran Jeon ,  Jeonjin Choi

IPC分类号： H01M4/00 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/131 ,  C01G53/00 ,  H01M4/02

摘要： The present disclosure relates to a cathode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery comprising same, the cathode active material comprising a lithium-nickel compound oxide, wherein a c-axis lattice parameter of a unit lattice of the lithium-nickel compound oxide satisfies Formula 1: 14.1720 ÅA≤c≤14.1750 ÅA  [Formula 1]

公开(公告)号：US20190027739A1

公开(公告)日：2019-01-24

申请号：US16044399

申请日：2018-07-24

申请人： Samsung SDI Co., Ltd.

发明人： Minhan Kim ,  Dongjin Kim ,  Ilseok Kim ,  Dohyung Park ,  Junseok Park ,  Daehoe Lee ,  Okgyu Lim ,  Gyuran Jeon ,  Jeonjin Choi

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

摘要： A positive active material for a rechargeable lithium battery includes a core including a compound represented by Chemical Formula 1 and a functional layer on a surface of the core. The functional layer has one kind of a crystal structure that is different from the crystal structure of the core. The positive active material includes about 100 ppm to about 400 ppm of sulfur: LiaNixCoyMezO2,  Chemical Formula 1 wherein in Chemical Formula 1, 0.9≤a≤1.1, 0.5≤x≤0.93, 0

公开(公告)号：US09991513B2

公开(公告)日：2018-06-05

申请号：US15002057

申请日：2016-01-20

申请人： SAMSUNG SDI CO., LTD.

发明人： Jeonjin Choi ,  Minhan Kim ,  Joong-Ho Moon ,  Haneol Park ,  Kyounghyun Kim ,  Dohyung Park ,  Dongjin Kim ,  Gyuran Jeon ,  Sun-Ho Kang

IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M4/36 ,  C01G53/00 ,  H01M10/052 ,  H01M4/04

CPC分类号： H01M4/505 ,  C01G53/50 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2006/40 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/366 ,  H01M4/525 ,  H01M10/052

摘要： A positive active material represented by Formula 1 and a lithium secondary battery having a positive electrode that includes the positive active material are provided: Li1-aAaNixCoyMn1-x-yO2  Formula 1 wherein, in Formula 1, A is an alkali metal; 0.0025≤a≤0.02; 0.0