公开(公告)号：US20200343551A1

公开(公告)日：2020-10-29

申请号：US16858516

申请日：2020-04-24

Applicant: SAMSUNG SDI CO., LTD. ,  Seoul National University R&DB Foundation

Inventor： Kwanghwan CHO ,  Kyu Tae LEE ,  Hanseul KIM ,  Sung Wook DOO ,  Seongmin KIM

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/134 ,  H01M4/36 ,  H01M4/04 ,  H01M10/0525 ,  H01M10/0569

Abstract: A positive active material for a rechargeable lithium battery includes a nickel-based lithium metal oxide having a layered crystal structure and a coating layer including a lithium-metal oxide selectively disposed on (003) crystalline plane of the nickel-based lithium metal oxide, wherein the nickel-based lithium metal oxide exists as single particles.

公开(公告)号：US20180026267A1

公开(公告)日：2018-01-25

申请号：US15654623

申请日：2017-07-19

Applicant: Samsung SDI Co., Ltd.

Inventor： Jongmin KIM ,  Jiyoon KIM ,  Pilsang YUN ,  Donggyu CHANG ,  Kwanghwan CHO ,  Jangsuk HYUN ,  Jinhwa KIM

IPC: H01M4/525 ,  H01M4/485 ,  H01M10/052

CPC classification number: H01M4/525 ,  C01G53/50 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/90 ,  C01P2006/12 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/485 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: A nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material, the nickel-based active material comprising a secondary particle having an outer portion with a radially arranged structure and an inner portion with an irregular porous structure, wherein the inner portion of the secondary particle has a larger pore size than the outer portion of the secondary particle.

公开(公告)号：US20160181611A1

公开(公告)日：2016-06-23

申请号：US14972216

申请日：2015-12-17

Applicant: UNIST Academy-Industry Research Corporation ,  SAMSUNG SDI CO., LTD.

Inventor： Kwanghwan CHO ,  Jaephil CHO ,  Hyejung KIM

IPC: H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/525 ,  C01G53/50 ,  C01P2002/50 ,  C01P2002/76 ,  C01P2002/85 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/366 ,  H01M10/052

Abstract: A composite cathode active material, including a nickel-based lithium transition metal oxide secondary particle, the nickel-based lithium transition metal oxide secondary particle including a coating layer containing lithium and cobalt on a surface of a primary particle of the secondary particle.

Abstract translation: 一种复合阴极活性物质，其包含镍基锂过渡金属氧化物二次粒子，所述镍基锂过渡金属氧化物二次粒子在所述二次粒子的一次粒子的表面上包含含有锂和钴的被覆层。