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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：US20230101381A1
公开(公告)日：2023-03-30
申请号：US17658418
申请日：2022-04-07
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Youngsun KONG , Seok Mun KANG , Wonmo SEONG , Dowook JUN , Naoyuki HASE
IPC: H01M4/525 , H01M4/505 , H01M4/36 , H01M4/04 , H01M10/0525
Abstract: A positive active material precursor for a rechargeable lithium battery, a method for preparing a positive active material using the same, and a positive active material for a rechargeable lithium battery are provided. The positive active material precursor for a rechargeable lithium battery has a form of a core-shell particle including a core and a shell around the core, where the core includes a nickel-manganese-based composite hydroxide containing nickel and manganese, the shell includes a nickel-manganese-based composite hydroxide containing nickel, manganese, and a pillar element, and the pillar element includes at least one selected from Al, Mo, Ti, W, and Zr.
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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：US20240178455A1
公开(公告)日：2024-05-30
申请号：US18461073
申请日：2023-09-05
Inventor： Wonmo SEONG , Youngsun KONG , Seok Mun KANG , Jaesang YOON , Naoyuki HASE , Do-Wook JUN , Jongsoon KIM , Yongseok LEE
IPC: H01M10/0569 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0567 , H01M10/44
CPC classification number: H01M10/0569 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0567 , H01M10/446 , H01M2004/028
Abstract: Provided is a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the additive includes one or more of a compound represented by Chemical Formula 1A and a compound represented by Chemical Formula 1B, the positive electrode active material includes a lithium nickel manganese-based oxide represented by Chemical Formula 2, and a charging upper limit voltage is about 4.4 V to about 4.7 V. Chemical Formula 1A and Chemical Formula 1B are as defined in the specification.
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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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6.发明申请公开(公告)号：US20250105272A1
公开(公告)日：2025-03-27
申请号：US18893638
申请日：2024-09-23
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Wonmo SEONG , Naoyuki HASE , Dohoon KIM , Dong Hee YEON
Abstract: Provided are a positive electrode active material for a rechargeable lithium battery including a compound represented by Chemical Formula 1, a positive electrode including the same, and a rechargeable lithium battery. In Chemical Formula 1, 0
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公开(公告)号：US20230387406A1
公开(公告)日：2023-11-30
申请号：US18153080
申请日：2023-01-11
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Youngsun KONG , Wonmo SEONG , Seok Mun KANG , Naoyuki HASE , Jaesang YOON , Do-Wook JUN
IPC: H01M4/525 , H01M4/505 , H01M10/0525 , C01G53/00
CPC classification number: H01M4/525 , H01M4/505 , H01M10/0525 , C01G53/50 , H01M2004/021
Abstract: A positive active material for rechargeable lithium batteries is provided to include: a first positive active material including a layered cobalt-free lithium nickel-based composite oxide, being in a form of a secondary particle in which a plurality of primary particles are aggregated, and having an average particle diameter of about 8 μm to about 20 μm; and a second positive active material including a layered cobalt-free lithium nickel-based composite oxide, being in a form of a single particle, and having an average particle diameter of about 1 μm to about 7 μm, wherein a molar amount of nickel based on the total molar amount of elements excluding lithium and oxygen in the second positive active material is about 1 mol % to about 10 mol % more than a molar amount of nickel based on the total molar amount of elements excluding lithium and oxygen in the first positive active material.
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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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