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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.
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公开(公告)号：US20230317939A1
公开(公告)日：2023-10-05
申请号：US18003881
申请日：2021-07-12
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Kiyong AHN , Do-Wook JUN , Youngsun KONG , Seonyoung KWON , Minkyu KIM , Min Ju KIM , Dookyun LEE , Kijoo HONG
IPC: H01M4/525 , H01M10/052 , H01M4/131 , H01M4/505 , C01G53/00
CPC classification number: H01M4/525 , H01M10/052 , H01M4/131 , H01M4/505 , C01G53/42 , H01M2004/021
Abstract: According to an embodiment, provided is a cathode active material for a lithium secondary battery, the cathode active material including a nickel-based composite metal oxide including a secondary particle in which a plurality of primary particles are agglomerated, wherein the secondary particle includes a central portion and a surface portion, the surface portion includes a nickel-based composite metal oxide doped with manganese, and an amount of manganese present in the grain boundaries of the plurality of primary particles present in the surface portion is greater than an amount of manganese present inside the primary particles.
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公开(公告)号：US20220384801A1
公开(公告)日：2022-12-01
申请号：US17655961
申请日：2022-03-22
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Youngsun KONG , Kiyong AHN , Seonyoung KWON , Min Ju KIM , Dookyun LEE , Dowook JUN , Kijoo HONG
IPC: H01M4/525 , H01M4/505 , H01M4/36 , H01M4/04 , H01M10/0525
Abstract: A positive active material includes a nickel-based composite metal oxide having the form of secondary particles in which a plurality of primary particles are agglomerated, where each secondary particle includes a core and a shell, the primary particles of the shell are coated with a manganese-containing nickel-based composite metal oxide, and the manganese-containing nickel-based composite metal oxide has a layered structure.
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公开(公告)号：US20210083287A1
公开(公告)日：2021-03-18
申请号：US17102412
申请日：2020-11-23
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Kiyong AHN , Jongmin KIM
IPC: H01M4/525 , H01M4/04 , H01M4/36 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M4/505 , H01M10/0525 , C01G53/00
Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material for a rechargeable lithium battery that includes a first positive active material including a secondary particle including at least two agglomerated primary particles, where at least a portion of the primary particles has a radial arrangement structure, and a second positive active material having a monolith structure, wherein the first and second positive active materials each include a nickel-based positive active material, and an X-ray diffraction (XRD) peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. Further embodiments provide a method of manufacturing the positive electrode for rechargeable lithium battery, and a rechargeable lithium battery including the same.
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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.
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Patent Agency Ranking
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.
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公开(公告)号：US20220384780A1
公开(公告)日：2022-12-01
申请号：US17657316
申请日：2022-03-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Jungsue JANG , Donghyun KIL , Minhan KIM , Jinyoung KIM , Jinhwa KIM , Jihyun SEOG , Jaeha SHIM , Kiyong AHN , Donggyu CHANG , Youngjoo CHAE , Aram CHOI , Jeuk HA
Abstract: Disclosed are a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same.
The positive active material includes a first positive active material in a form of secondary particles including a plurality of primary particles that are aggregated together, and a second positive active material having a single crystal form, wherein both of the first positive active material and the second positive active material are nickel-based positive active materials, each of the first positive active material and the second positive active material is coated with cobalt, and a maximum roughness of a surface of the second positive active material is greater than or equal to about 15 nm.-
公开(公告)号：US20240222602A1
公开(公告)日：2024-07-04
申请号：US18603865
申请日：2024-03-13
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Jungsue JANG , Donghyun KIL , Minhan KIM , Jinyoung KIM , Jinhwa KIM , Jihyun SEOG , Jaeha SHIM , Kiyong AHN , Donggyu CHANG , Youngjoo CHAE , Aram CHOI , Jeuk HA
CPC classification number: H01M4/364 , C01G53/40 , C01G53/44 , H01M4/0471 , H01M4/366 , H01M4/505 , H01M4/525 , H01M2004/021 , H01M2004/028
Abstract: Disclosed are a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The positive active material includes a first positive active material in a form of secondary particles including a plurality of primary particles that are aggregated together, and a second positive active material having a single particle form, wherein both of the first positive active material and the second positive active material are nickel-based positive active materials, each of the first positive active material and the second positive active material is coated with cobalt, and a maximum roughness of a surface of the second positive active material is greater than or equal to about 15 nm.
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9.发明公开公开(公告)号：US20240101443A1
公开(公告)日：2024-03-28
申请号：US18003886
申请日：2021-07-12
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Kiyong AHN , Do-Wook JUN , Youngsun KONG , Seonyoung KWON , Min Ju KIM , Dookyun LEE , Kijoo HONG
IPC: C01G53/00
CPC classification number: C01G53/006 , C01P2004/03 , C01P2004/10 , C01P2004/84 , C01P2006/40
Abstract: Provided is a positive electrode active material precursor for a rechargeable lithium battery including a nickel-based composite metal hydroxide including a secondary particle in which a plurality of primary particles are agglomerated, wherein the secondary particle includes a central portion and a surface portion, and the surface portion includes a primary particle coated with manganese oxide, manganese hydroxide, or a mixture thereof.
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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.
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