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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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2.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：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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4.发明申请公开(公告)号：US20250046792A1
公开(公告)日：2025-02-06
申请号：US18792466
申请日：2024-08-01
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 includes: a first positive electrode active material including a lithium nickel-manganese composite oxide having a nickel content of at least about 60 mol % based on a total metal excluding lithium and being in a form of secondary particles each including a plurality of primary particles; and a second positive electrode active material including a lithium nickel-manganese-based composite oxide having a nickel content of at least about 60 mol % based on a total metal excluding lithium and being in a form of single particles and a coating layer on the surface of the single particle and containing aluminum and yttrium, an aluminum content of the coating layer being about 0.1 mol % to about 2 mol % and an yttrium content of the coating layer being about 0.1 mol % to about 1 mol %, based on a total metal excluding lithium in the second positive electrode active material.
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公开(公告)号：US20240413315A1
公开(公告)日：2024-12-12
申请号：US18735084
申请日：2024-06-05
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Sungwook DOO , Youngsun KONG , Young-Ki KIM , Sung Ho CHOO , Seok Mun KANG , Jaesang YOON , 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 a core particle including lithium nickel-manganese-aluminum-based composite oxide and a coating layer disposed on a surface of the core particles and containing aluminum and yttrium, wherein a nickel content (e.g., amount) in the core particle is greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the positive electrode active material, and an aluminum content (e.g., amount) of the coating layer is about 0.1 mol % to about 2 mol %, and a yttrium content (e.g., amount) of the coating layer is about 0.05 mol % to about 1 mol %, each based on 100 mol % of the total metal excluding lithium in the positive electrode active material.
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Patent Agency Ranking
6.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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7.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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8.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：US20250140812A1
公开(公告)日：2025-05-01
申请号：US18932210
申请日：2024-10-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Sung Ho CHOO , Young-Ki KIM , Youngsun KONG , Seok Mun KANG , Jaesang YOON , Sungwook DOO , Dowook JUN , Gwiwoon KANG , 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 disclosure. The positive electrode active material includes core particles including a layered 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 located on the surface of the core particles and containing Al, wherein an Al content (e.g., amount) of the coating layer is about 0.5 mol % to about 1.5 mol % based on 100 mol % of a total metal in the layered lithium nickel-manganese-based composite oxide excluding lithium, and the coating layer has a fiber shape (e.g., in a form of fibers, having a fibrous structure, etc.).
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