公开(公告)号：US20150380736A1

公开(公告)日：2015-12-31

申请号：US14703777

申请日：2015-05-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Youngjin Park ,  Dohyung Park ,  Kwanghwan Cho ,  Kihyun Kim ,  Minhan Kim ,  Sun-Ho Kang

IPC: H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/48 ,  H01M10/052

CPC classification number: H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A composite cathode active material including a lithium transition metal oxide, wherein the lithium transition metal oxide includes a layered structural phase and a spinel structural phase, and an amount of residual lithium is about 0.30 wt % or less; a cathode and a lithium battery including the composite cathode active material; and a method of preparing the composite cathode active material.

Abstract translation: 包括锂过渡金属氧化物的复合正极活性材料，其中所述锂过渡金属氧化物包括层状结构相和尖晶石结构相，并且所述残留锂的量为约0.30重量％以下; 包括所述复合阴极活性材料的阴极和锂电池; 以及制备复合阴极活性材料的方法。

公开(公告)号：US11742482B2

公开(公告)日：2023-08-29

申请号：US17308940

申请日：2021-05-05

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 ,  H01M4/505 ,  C01G53/00 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/525 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  H01M4/485 ,  H01M4/505 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2004/90 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: Provided are a nickel-based active material, a method of preparing the same, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.

公开(公告)号：US11695109B2

公开(公告)日：2023-07-04

申请号：US16959966

申请日：2019-04-18

Applicant: Samsung SDI Co., Ltd.

Inventor： Kwanghwan Cho

IPC: H01M4/36 ,  C01G53/00 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/366 ,  C01G53/42 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/628 ,  H01M10/0525 ,  C01P2002/50 ,  C01P2002/88 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

Abstract: The present disclosure relates to a positive electrode active material, a preparing method therefor, and a lithium secondary battery including same. A positive electrode active material according to an embodiment comprises: a core including a lithium nickel composite oxide represented by Chemical Formula 1; and a surface layer present on the core and including at least one of a water-soluble ammonium-based organic compound and a water-soluble amine-based organic compound. The details of Chemical Formula 1 are as defined in the specification.

公开(公告)号：US11302919B2

公开(公告)日：2022-04-12

申请号：US15654648

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 ,  C01G53/00 ,  H01M4/485 ,  H01M4/505 ,  H01M4/02 ,  H01M10/052

Abstract: Provided are a nickel-based active material, a method of preparing the same, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.

公开(公告)号：US11133501B2

公开(公告)日：2021-09-28

申请号：US15337541

申请日：2016-10-28

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Sanghoon Kim ,  Kwanghwan Cho ,  Eunsung Lee ,  Dohyung Park ,  ILseok Kim ,  Sol Choi

IPC: H01M4/131 ,  H01M4/525 ,  C01G53/00 ,  H01M50/107 ,  H01M10/0525

Abstract: A composite positive active material includes a lithium nickel cobalt aluminum composite oxide. A full width at half maximum (FWHM) of a peak of a (104) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less and an FWHM of a peak of a (108) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less, the peaks being obtained by X-ray diffraction analysis using a CuKα X-ray. A method of preparing the composite positive active material, and a lithium secondary battery including a positive electrode including the composite positive active material are disclosed.

公开(公告)号：US20210280866A1

公开(公告)日：2021-09-09

申请号：US17192711

申请日：2021-03-04

Applicant: Samsung SDI Co., Ltd. ,  UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Kwanghwan Cho ,  Moonsu Yoon ,  Jaephil Cho

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/04 ,  C01G53/00

Abstract: This application relates to a composite positive electrode active material for a lithium secondary battery. The composite positive electrode active material includes a nickel-based active material and a cobalt-boron compound-containing coating layer formed on a surface of the nickel-based active material. The application also relates to a method of preparation of the composite positive electrode active material. The application further relates to a lithium secondary battery including a positive electrode containing the composite positive electrode active material.

公开(公告)号：US10790504B2

公开(公告)日：2020-09-29

申请号：US16326894

申请日：2017-08-22

Applicant: Samsung SDI Co., Ltd.

Inventor： Jaeho Lee ,  Seonyoung Kwon ,  Kihyun Kim ,  Yumi Song ,  Kwanghwan Cho

IPC: H01M4/02 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  C01G53/00 ,  H01M4/505 ,  H01M4/62

Abstract: Provided are a composite cathode active material for a lithium ion battery including a nickel-rich lithium nickel-based compound having a nickel content of 50 to 100 mol % based on a total content of transition metals; and a coating film including a rare earth metal hydroxide and disposed on the surface of the nickel-rich lithium nickel-based compound, a manufacturing method therefor, and a lithium ion battery including a cathode including the composite cathode active material.