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公开(公告)号：US20250070154A1
公开(公告)日：2025-02-27
申请号：US18814141
申请日：2024-08-23
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Byungwuk KANG , Young-Ki KIM , Sungwook DOO , Sung Ho CHOO , Dowook JUN , Gwiwoon KANG , Jaeyong JEONG , Youngsun KONG , Jaesang YOON , Seok Mun KANG
Abstract: A positive electrode active material, a method of preparing the same, a positive electrode and a rechargeable lithium battery including the same are disclosed. The positive electrode active material includes core particles including a layered lithium nickel-manganese-based composite oxide, a first coating layer disposed on a surface of the core particles and containing Al, and a second coating layer disposed on the first coating layer and containing Mn.
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公开(公告)号：US20210408528A1
公开(公告)日：2021-12-30
申请号：US17359143
申请日：2021-06-25
Applicant: Samsung SDI Co., Ltd.
Inventor： Youngjoo CHAE , Gwiwoon KANG , Youngsun KONG , Sangmi KIM , Youngki KIM , Jinyoung KIM , Jaeyoung JEONG , Soonkie HONG
IPC: H01M4/36 , H01M4/525 , H01M10/0525 , C01G53/00
Abstract: Disclosed herein are a nickel-based lithium metal composite oxide, a method of preparing the same, and a lithium secondary battery including a positive electrode including the same. The nickel-based lithium metal composite oxide includes secondary particles including aggregates of primary particles, wherein a content of nickel in the nickel-based lithium metal composite oxide is 50 mol % or more, based on the total content of transition metals in the nickel-based lithium metal composite oxide, the secondary particles include large secondary particles having a particle size of 10 μm or more and small secondary particles having a particle size of 5 μm or less, and the content of nickel in the large secondary particles is larger than the content of nickel in the small secondary particles.
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3.发明申请公开(公告)号：US20250046810A1
公开(公告)日：2025-02-06
申请号：US18792838
申请日：2024-08-02
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Young-Ki KIM , Youngsun KONG , Sung Ho CHOO , Seok Mun KANG , Jaesang YOON , Sungwook DOO , Gwiwoon KANG , Do-Wook JUN , Byungwuk KANG , Jaeyong JEONG
Abstract: Disclosed are positive electrode active materials, positive electrodes, and a rechargeable lithium battery including the same. Some of the positive electrode active materials include particles of a first positive electrode active material including lithium cobalt-based oxide, and particles of a second positive electrode active material including a layered lithium nickel-manganese-based composite oxide having a nickel content of greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium, wherein the first positive electrode active material or the second positive electrode active material includes a coating layer including yttrium.
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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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5.发明申请公开(公告)号：US20250140794A1
公开(公告)日：2025-05-01
申请号：US18928779
申请日：2024-10-28
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Young-Ki KIM , Youngsun KONG , Sung Ho CHOO , Seok Mun KANG , Sungwook DOO , Jaesang YOON , Gwiwoon KANG , Dowook JUN , Byungwuk KANG , Jaeyong JEONG
Abstract: Disclosed are a positive electrode active material, a positive electrode including the same, and a rechargeable lithium battery, the positive electrode active material includes a first positive electrode active material including a layered lithium nickel-manganese-based composite oxide and a second positive electrode active material including a lithium-manganese rich composite oxide in which a molar ratio of lithium to a total metal excluding lithium is about 1.1 to about 3 and a manganese content is greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the lithium-manganese rich composite oxide.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20250046811A1
公开(公告)日：2025-02-06
申请号：US18793430
申请日：2024-08-02
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Young-Ki KIM , Sung Ho CHOO , Youngsun KONG , Seok Mun KANG , Jaesang YOON , Sungwook DOO , Gwiwoon KANG , Do-Wook JUN , Byungwuk KANG , Jaeyong JEONG
Abstract: A positive electrode active material including a first positive electrode active material including a lithium nickel-manganese-based composite oxide having a nickel content of greater than or equal to about 60 mol % based on about 100 mol % of a total metal excluding lithium and including secondary particles made by agglomerating a plurality of primary particles wherein an average particle diameter (D50) of the secondary particle is about 10 μm to about 20 μm, a second positive electrode active material including a lithium nickel-manganese-based composite oxide having a nickel content of greater than or equal to about 60 mol % based on about 100 mol % of a total metal excluding lithium and including single particles wherein an average particle diameter (D50) of each of the single particles is about 2 μm to about 8 μm, and a third positive electrode active material includes particles including lithium transition metal phosphate.
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7.发明申请公开(公告)号：US20250046809A1
公开(公告)日：2025-02-06
申请号：US18790639
申请日：2024-07-31
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Young-Ki KIM , Sung Ho CHOO , Dowook JUN , Gwiwoon KANG , Jaeyong JEONG , Youngsun KONG , Byungwuk KANG , Jaesang YOON , Sungwook DOO , Seok Mun KANG
Abstract: A positive electrode active material includes a first positive electrode active material that includes a lithium nickel-manganese-based composite oxide having a nickel content of greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the first positive electrode active material and is in a form of secondary particles in which a plurality of primary particles are agglomerated, a second positive electrode active material in a form of single particles including a lithium nickel-manganese-based composite oxide having a nickel content of greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the second positive electrode active material, and a third positive electrode active material in a form of particles including lithium manganese-based oxide. In addition, a positive electrode and a rechargeable lithium battery each including the positive electrode active material are disclosed.
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公开(公告)号：US20250046798A1
公开(公告)日：2025-02-06
申请号：US18793677
申请日：2024-08-02
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Young-Ki KIM , Sung Ho CHOO , Youngsun KONG , Seok Mun KANG , Jaesang YOON , Sungwook DOO , Gwiwoon KANG , Dowook JUN , Byungwuk KANG , Jaeyong JEONG
Abstract: A positive electrode active material, a method of preparing the same, a positive electrode and a rechargeable lithium battery including the same are provided. The positive electrode active material includes core particles including a lithium nickel-manganese-based composite oxide having a nickel content (e.g., amount) of greater than or equal to about 60 mol % based on 100 mol % of a total metal in the positive electrode active material excluding lithium, and a coating layer disposed on the surface of the core particles and including Al, Zr, and Mg.
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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：US20250070153A1
公开(公告)日：2025-02-27
申请号：US18812554
申请日：2024-08-22
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Byungwuk KANG , Sungwook DOO , Young-Ki KIM , Sung Ho CHOO , Dowook JUN , Gwiwoon KANG , Jaeyong JEONG , Youngsun KONG , Seok Mun KANG , Jaesang YOON
Abstract: Disclosed are a positive electrode active material, a method of preparing the same, and a positive electrode and a rechargeable lithium battery including the same, the positive electrode active material including core particles including a layered lithium nickel-manganese-based composite oxide, a first coating layer on a surface of the core particles and containing Al, and a second coating layer on the first coating layer and containing Co.
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