公开(公告)号：US20220093913A1

公开(公告)日：2022-03-24

申请号：US17186502

申请日：2021-02-26

Applicant: Samsung SDI Co., Ltd.

Inventor： Kiyong AHN ,  Taehee KWAK ,  Jeuk HA ,  Seonyoung KWON ,  Yumi SONG ,  Eunok OH ,  Soonrewl LEE ,  Naoyuki HASE

IPC: H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  C01G53/00

Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material including small particle diameter monolith particles having a particle diameter of about 1 μm to about 8 μm and including a first nickel-based lithium metal oxide, and large particle diameter secondary particles having a particle diameter of about 10 μm to about 20 μm and including a second nickel-based lithium metal oxide. An X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. A rechargeable lithium battery includes the positive electrode.

公开(公告)号：US20250125339A1

公开(公告)日：2025-04-17

申请号：US18984403

申请日：2024-12-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kiyong AHN ,  Taehee KWAK ,  Jeuk HA ,  Seonyoung KWON ,  Yumi SONG ,  Eunok OH ,  Soonrewl LEE ,  Naoyuki HASE

IPC: H01M4/36 ,  C01G53/42 ,  H01M4/02 ,  H01M4/525 ,  H01M10/0525

Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material including small particle diameter monolith particles having a particle diameter of about 1 μm to about 8 μm and including a first nickel-based lithium metal oxide, and large particle diameter secondary particles having a particle diameter of about 10 μm to about 20 μm and including a second nickel-based lithium metal oxide. An X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. A rechargeable lithium battery includes the positive electrode.

公开(公告)号：US20240413298A1

公开(公告)日：2024-12-12

申请号：US18737629

申请日：2024-06-07

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jungwoo SON ,  Seonyoung KWON ,  Eunok OH ,  Yuntaek OH ,  Minkyeong KANG ,  Taehee KWAK

IPC: H01M4/131 ,  H01M4/02 ,  H01M4/133 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0585

Abstract: A positive electrode for a stack-type rechargeable lithium battery includes a current collector, a first positive electrode active material layer on one surface of the current collector, and a second positive electrode active material layer on the other surface of the current collector, wherein a loading level of the first positive electrode active material layer is about 5% or more higher than a loading level of the second positive electrode active material layer, each of the first positive electrode active material layer and the second positive electrode active material layer includes a first positive electrode active material in the form of secondary particles and a second positive electrode active material in the form of single particles, an average particle diameter of secondary particles of the first positive electrode active material is larger than an average particle diameter of single particles of the second positive electrode active material.

公开(公告)号：US20240213470A1

公开(公告)日：2024-06-27

申请号：US18473966

申请日：2023-09-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Seonyoung KWON ,  Eunok OH ,  Jungwoo SON ,  Yuntaek OH ,  Minkyeong KANG ,  Taehee KWAK

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

CPC classification number: H01M4/525 ,  H01M4/364 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021

Abstract: A positive electrode for a rechargeable lithium battery includes a current collector and a positive electrode active material layer on the current collector, the positive electrode active material layer including a positive electrode active material, the positive electrode active material includes about 75 wt % to about 100 wt % of a first positive electrode active material in a form of single particles and including a lithium nickel-based composite oxide having a nickel content of greater than or equal to about 70 mol %, and about 0 wt % to about 25 wt % of a second positive electrode active material in a form of secondary particles in which a plurality of primary particles are aggregated and including a lithium nickel-based composite oxide, and, in an X-ray diffraction analysis of the positive electrode, a ratio of a peak intensity of a (003) plane to a (104) plane is greater than or equal to about 4.8.

公开(公告)号：US20250118733A1

公开(公告)日：2025-04-10

申请号：US18983863

申请日：2024-12-17

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kiyong AHN ,  Taehee KWAK ,  Jeuk HA ,  Seonyoung KWON ,  Yumi SONG ,  Eunok OH ,  Soonrewl LEE ,  Naoyuki HASE

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

Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material including small particle diameter monolith particles having a particle diameter of about 1 μm to about 8 μm and including a first nickel-based lithium metal oxide, and large particle diameter secondary particles having a particle diameter of about 10 μm to about 20 μm and including a second nickel-based lithium metal oxide. An X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. A rechargeable lithium battery includes the positive electrode.

公开(公告)号：US20230317923A1

公开(公告)日：2023-10-05

申请号：US18329199

申请日：2023-06-05

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kiyong AHN ,  Taehee KWAK ,  Jeuk HA ,  Seonyoung KWON ,  Yumi SONG ,  Eunok OH ,  Soonrewl LEE ,  Naoyuki HASE

IPC: H01M4/36 ,  C01G53/00 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/364 ,  C01G53/42 ,  H01M4/525 ,  H01M10/0525 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/40 ,  H01M2004/021

Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material including small particle diameter monolith particles having a particle diameter of about 1 μm to about 8 μm and including a first nickel-based lithium metal oxide, and large particle diameter secondary particles having a particle diameter of about 10 μm to about 20 μm and including a second nickel-based lithium metal oxide. An X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. A rechargeable lithium battery includes the positive electrode.