公开(公告)号：US10957897B2

公开(公告)日：2021-03-23

申请号：US15824829

申请日：2017-11-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Yumi Song ,  Seonyoung Kwon ,  Kihyun Kim ,  Soohyeon Kim ,  Jinhwa Kim ,  Joongho Moon ,  Jaeho Lee ,  Kwanghwan Cho ,  Soonbong Choi ,  Mingzi Hong

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/02 ,  C01B32/22

Abstract: A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.

公开(公告)号：US10862164B2

公开(公告)日：2020-12-08

申请号：US15624226

申请日：2017-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung SDI Co., Ltd.

Inventor： Myungjin Lee ,  Kihyun Kim ,  Taehwan Yu ,  Wonseok Chang

IPC: H01M10/0565 ,  C08F222/10 ,  C08L33/16 ,  C08G65/00 ,  H01M4/38 ,  H01M4/134 ,  H01M10/052 ,  C08G65/329 ,  C08K5/435 ,  H01M10/0525 ,  H01M4/36

Abstract: A polymer electrolyte including a polymerization product of a polymer having an unsaturated functional group at a terminal thereof and a fluoroalkylene chain, and an ion-conductive polymer having an unsaturated functional group at a terminal thereof, wherein the ion-conductive polymer having an unsaturated functional group at a terminal thereof is a polymer represented by Formula 1 or Formula 2, and the polymer having an unsaturated functional group at a terminal thereof and a fluoroalkylene chain is a compound represented by Formula 3, wherein Formulae 1 to 3 are the same as represented in the detailed description of the specification.

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：US11894554B2

公开(公告)日：2024-02-06

申请号：US16320057

申请日：2017-08-22

Applicant: Samsung SDI Co., Ltd.

Inventor： Jungmin Han ,  Kihyun Kim ,  Jaeho Lee ,  Ming-Zi Hong

IPC: H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/505 ,  H01M4/382 ,  H01M4/525 ,  H01M10/0525

Abstract: Provided are a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same. The cathode active material for a lithium secondary battery comprises: a lithium metal compound; and a lithium compound disposed on the surface of the lithium metal compound, wherein the content of lithium contained in the lithium compound is 0.25 parts by weight or less with respect to 100 parts by weight of the lithium metal compound, wherein the specific surface area of the lithium compound is between 0.5 m2/g and 2.0 m2/g, and the pH of the lithium compound is between 11.5 and 12.3.

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.

公开(公告)号：US11239456B2

公开(公告)日：2022-02-01

申请号：US16663105

申请日：2019-10-24

Applicant: Samsung SDI Co., Ltd.

Inventor： Yumi Song ,  Seonyoung Kwon ,  Kihyun Kim ,  Soohyeon Kim ,  Jinhwa Kim ,  Joongho Moon ,  Jaeho Lee ,  Kwanghwan Cho ,  Soonbong Choi ,  Mingzi Hong

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/02 ,  C01B32/22

Abstract: A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.

公开(公告)号：US11075367B2

公开(公告)日：2021-07-27

申请号：US15824829

申请日：2017-11-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Yumi Song ,  Seonyoung Kwon ,  Kihyun Kim ,  Soohyeon Kim ,  Jinhwa Kim ,  Joongho Moon ,  Jaeho Lee ,  Kwanghwan Cho ,  Soonbong Choi ,  Mingzi Hong

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/02 ,  C01B32/22

Abstract: A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.