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公开(公告)号：US20210020936A1
公开(公告)日：2021-01-21
申请号：US17039739
申请日：2020-09-30
Applicant: Samsung SDI Co., Ltd.
Inventor： Jinhwa KIM , Hyunbeom KIM , Jongmin KIM , Wooyoung YANG , Donggyu CHANG , Jangsuk HYUN
IPC: H01M4/525 , H01M10/052 , H01M4/04 , C01G53/00
Abstract: Provided are a nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle that includes at least two primary particle structures, the primary particle structures each including a porous inner portion and an outer portion having a radially arranged structure, and the secondary particle including at least two radial centers.
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12.发明申请公开(公告)号：US20250132379A1
公开(公告)日：2025-04-24
申请号：US18676695
申请日：2024-05-29
Applicant: SAMSUNG SDI CO., LTD. , HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Suk-Gi HONG , Myeongiu HA , Hwichul YANG , Pilsang YUN , Hyunbeom KIM , Young Gyoon RYU , Kyusung PARK , Yongjun JANG , Sunho CHOI , Sungman CHO , Seonghyeon CHOI , Yonggu KIM , Saheum KIM
IPC: H01M10/0562 , H01M4/02 , H01M4/04 , H01M4/62
Abstract: A solid electrolyte, a positive electrode, and an all-solid-state rechargeable battery, the solid electrolyte includes solid ion conductor particles; and a coating layer on a surface of the solid ion conductor particles, wherein the coating layer includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, Li3+aM1bX16+c [Chemical Formula 1] LiX2. [Chemical Formula 2]
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13.发明公开公开(公告)号：US20230327101A1
公开(公告)日：2023-10-12
申请号：US17989547
申请日：2022-11-17
Applicant: SAMSUNG SDI CO., LTD
Inventor： Pilsang YUN , Hyunbeom KIM , Hanseul LEE , Do-Yu KIM , Yongchan YOU
CPC classification number: H01M4/525 , C01G53/42 , H01M4/131 , H01M2004/028
Abstract: A positive electrode active material for a rechargeable lithium battery, and a rechargeable lithium battery including the same are provided. The positive electrode active material includes a lithium nickel-based composite oxide wherein the positive electrode active material is in a form of secondary particles in which a plurality of primary particles are aggregated and at least a portion of the primary particles are radially arranged, in a cross-section of the secondary particles, a number ratio of the primary particles having a cross-sectional area of less than about 0.1 µm2 is greater than or equal to about 65%, and a full width at half maximum (FWHM) of the peak corresponding to the (003) plane in the X-ray diffraction analysis for the positive electrode active material is less than or equal to about 0.125.
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14.发明公开公开(公告)号：US20230307695A1
公开(公告)日：2023-09-28
申请号：US18081543
申请日：2022-12-14
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Pilsang YUN , Hyunbeom KIM , Do-Yu KIM , Yongchan YOU
IPC: H01M10/0525 , H01M10/0562 , H01M4/525 , H01M4/62 , H01M4/1391 , H01M4/04
CPC classification number: H01M10/0525 , H01M10/0562 , H01M4/525 , H01M4/621 , H01M4/1391 , H01M4/0471 , H01M2300/0068 , H01M2004/021
Abstract: A positive electrode for an all-solid-state battery, a method of preparing the same, and an all-solid-state battery including the same are provided. The positive electrode for an all-solid-state battery includes a positive electrode active material including a first positive electrode active material including a lithium nickel-based composite oxide and being in a form of secondary particles in which a plurality of primary particles are aggregated and at least a portion of the primary particles are radially arranged; a second positive electrode active material including a lithium nickel-based composite oxide and being in a form of single particles; a solid electrolyte; a conductive agent; and a binder.
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15.发明公开公开(公告)号：US20230352658A1
公开(公告)日：2023-11-02
申请号：US18150097
申请日：2023-01-04
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Pilsang YUN , Hyunbeom KIM , Hanseul LEE , Do-Yu KIM
CPC classification number: H01M4/364 , H01M4/62 , H01M4/525 , H01M4/0471 , H01M50/46 , H01M10/0525 , H01M2004/028
Abstract: A method of preparing a positive electrode active material for a rechargeable lithium battery is provided to include: mixing a first nickel-based composite hydroxide in a form of a secondary particle in which a plurality of primary particles are aggregated and at least a portion of the primary particles have a radially arranged structure, a second lithium nickel-based composite oxide having a monolith structure, a lithium raw material, and a boron raw material; and performing heat-treatment.
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Patent Agency Ranking
公开(公告)号：US20230178864A1
公开(公告)日：2023-06-08
申请号：US18060791
申请日：2022-12-01
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Pilsang YUN , Do-Yu KIM , Hyunbeom KIM , Sangin PARK , Yongchan YOU
IPC: H01M50/578 , H01M10/052 , H01M10/0567 , H01M50/124 , H01M50/117 , H01M50/164 , H01M50/157 , H01M4/525 , H01M4/36 , H01M4/58
CPC classification number: H01M50/578 , H01M4/366 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/0567 , H01M50/117 , H01M50/157 , H01M50/164 , H01M50/1243 , H01M2004/028 , H01M2200/20
Abstract: A rechargeable lithium battery includes: a positive electrode; a negative electrode; a separator between the positive electrode and the negative electrode; an electrolyte including vinylene carbonate; and a case accommodating the positive electrode, the negative electrode, the separator, and the electrolyte. At least in a portion of an interior of the case has a coating portion containing lithium borate particles.
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公开(公告)号：US20220255072A1
公开(公告)日：2022-08-11
申请号：US17454209
申请日：2021-11-09
Applicant: Samsung SDI Co., Ltd.
Inventor： Pilsang YUN , Hyunbeom KIM , Sangin PARK , Yongchan YOU
IPC: H01M4/525 , H01M4/505 , H01M10/0525 , H01M4/04
Abstract: A positive active material for a rechargeable lithium battery includes a lithium nickel-based metal composite oxide, wherein the positive active material includes secondary particles in which a plurality of primary particles are aggregated, a first boron coating portion present on the outer surfaces of the secondary particles, and a second boron coating portion present on surfaces of the primary particles inside the secondary particles, and a weight of the first boron coating portion is greater than a weight of the second boron coating portion.
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公开(公告)号：US20220037662A1
公开(公告)日：2022-02-03
申请号：US17499590
申请日：2021-10-12
Applicant: Samsung SDI Co., Ltd.
Inventor： Pilsang YUN , Jongmin KIM , Hyunbeom KIM , Wooyoung YANG , Jangsuk HYUN
IPC: H01M4/525 , H01M4/131 , H01M10/0525 , H01M4/505 , H01M4/36
Abstract: Provided are a nickel-based active material precursor for a lithium secondary battery including a porous core and a shell on the porous core, the shell having a radial arrangement structure with a higher density than that of the porous core, wherein the nickel-based active material precursor have a size of 9 μm to 14 μm, and the porous core has a volume of about 5% by volume to about 20% by volume based on the total volume of the nickel-based active material precursor; a method of preparing the nickel-based active material precursor; a nickel-based active material produced from the nickel-based active material; and a lithium secondary battery including a cathode containing the nickel-based active material.
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公开(公告)号：US20210234165A1
公开(公告)日：2021-07-29
申请号：US17229373
申请日：2021-04-13
Applicant: Samsung SDI Co., Ltd.
Inventor： Pilsang YUN , Jinhwa KIM , Hyunbeom KIM , Jaehyun SHIM , Wooyoung YANG
Abstract: Provided are a nickel-based active material precursor for a lithium secondary battery including a core, an intermediate layer located on the core, and a shell located on the intermediate layer, wherein porosity gradually decreases in the order of the core, the intermediate layer, and the shell, and each of the intermediate layer and the shell has a radial arrangement structure, a method for producing the nickel-based active material precursor, a nickel-based active material produced therefrom, and a lithium secondary battery including a cathode containing the nickel-based active material.
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公开(公告)号：US20200083530A1
公开(公告)日：2020-03-12
申请号：US16462887
申请日：2017-12-04
Applicant: Samsung SDI Co., Ltd.
Inventor： Pilsang YUN , Jinhwa KIM , Hyunbeom KIM , Jaehyun SHIM , Wooyoung YANG
IPC: H01M4/525 , H01M4/505 , H01M10/0525
Abstract: Provided are a nickel-based active material precursor for a lithium secondary battery including a core, an intermediate layer located on the core, and a shell located on the intermediate layer, wherein porosity gradually decreases in the order of the core, the intermediate layer, and the shell, and each of the intermediate layer and the shell has a radial arrangement structure, a method for producing the nickel-based active material precursor, a nickel-based active material produced therefrom, and a lithium secondary battery including a cathode containing the nickel-based active material.
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