公开(公告)号：US11876223B2

公开(公告)日：2024-01-16

申请号：US18048405

申请日：2022-10-20

Applicant: Samsung SDI Co., Ltd.

Inventor： Sangil Han ,  Ilseok Kim ,  Jinkyu Kim ,  Jeonghye Lee ,  Byeonggyu Cho

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/366 ,  H01M4/505 ,  H01M4/583 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028

Abstract: The present invention provides a negative electrode for a lithium metal battery and a lithium metal battery comprising the same, the negative electrode comprising: a first negative electrode including a lithium metal negative electrode; and a second negative electrode which is disposed on the first negative electrode and includes a coating layer including a carbon-based material. By using the negative electrode for a lithium metal battery, a lithium metal battery can have an improved charge and discharge efficiency and life time.

公开(公告)号：US10826064B2

公开(公告)日：2020-11-03

申请号：US16327244

申请日：2017-09-04

Applicant: Samsung SDI Co., Ltd.

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

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

Abstract: 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：US10665861B2

公开(公告)日：2020-05-26

申请号：US15795550

申请日：2017-10-27

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Dongjin Kim ,  Minhan Kim ,  Dohyung Park ,  Young Jin Park ,  Kyounghyun Kim ,  Ilseok Kim

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/1391 ,  C01G53/00 ,  H01M4/131 ,  H01M4/36 ,  H01M4/48 ,  H01M4/505 ,  H01M10/0525

Abstract: A positive active material for a rechargeable lithium battery includes a lithium nickel-based metal oxide represented by LixNi1-yMyO2 and a lithium-containing oxide on a surface of the lithium nickel-based metal oxide. In the formula LixNi1-yMyO2, M is one or more of Co, Mn, Al, Mg, Ti, Zr, or a combination thereof, 0

公开(公告)号：US12218350B2

公开(公告)日：2025-02-04

申请号：US18406069

申请日：2024-01-05

Applicant: Samsung SDI Co., Ltd.

Inventor： Sangil Han ,  Ilseok Kim ,  Jinkyu Kim ,  Jeonghye Lee ,  Byeonggyu Cho

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: The present invention provides a negative electrode for a lithium metal battery and a lithium metal battery comprising the same, the negative electrode comprising: a first negative electrode including a lithium metal negative electrode; and a second negative electrode which is disposed on the first negative electrode and includes a coating layer including a carbon-based material. By using the negative electrode for a lithium metal battery, a lithium metal battery can have an improved charge and discharge efficiency and life time.

公开(公告)号：US11575130B2

公开(公告)日：2023-02-07

申请号：US16768212

申请日：2018-10-18

Applicant: Samsung SDI Co., Ltd.

Inventor： Sangil Han ,  Ilseok Kim ,  Jinkyu Kim ,  Jeonghye Lee ,  Byeonggyu Cho

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/583 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: The present invention provides a negative electrode for a lithium metal battery and a lithium metal battery comprising the same, the negative electrode comprising: a first negative electrode including a lithium metal negative electrode; and a second negative electrode which is disposed on the first negative electrode and includes a coating layer including a carbon-based material. By using the negative electrode for a lithium metal battery, a lithium metal battery can have an improved charge and discharge efficiency and life time.

公开(公告)号：US20190027739A1

公开(公告)日：2019-01-24

申请号：US16044399

申请日：2018-07-24

Applicant: Samsung SDI Co., Ltd.

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

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

Abstract: 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