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公开(公告)号:US11569503B2
公开(公告)日:2023-01-31
申请号:US15654623
申请日:2017-07-19
发明人: Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
IPC分类号: H01M4/525 , C01G53/00 , H01M4/485 , H01M10/052 , H01M4/02
摘要: 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 comprising a secondary particle having an outer portion with a radially arranged structure and an inner portion with an irregular porous structure, wherein the inner portion of the secondary particle has a larger pore size than the outer portion of the secondary particle.
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公开(公告)号:US20230020658A1
公开(公告)日:2023-01-19
申请号:US17820475
申请日:2022-08-17
发明人: Pilsang Yun , Wooyoung Yang , Jangsuk Hyun
IPC分类号: H01M4/525 , C01G53/00 , H01M4/36 , H01M10/0525 , H01B1/06
摘要: A nickel-based active material precursor includes a particulate structure including a core portion, an intermediate layer portion on the core portion, and a shell portion on the intermediate layer portion, wherein the intermediate layer portion and the shell portion include primary particles radially arranged on the core portion, and each of the core portion and the intermediate layer portion includes a cation or anion different from that of the shell portion. The cation includes at least one selected from boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), tungsten (W), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), and aluminium (Al), and the anion includes at least one selected from phosphate (PO4), BO2, B4O7, B3O5, and F.
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公开(公告)号:US20220376245A1
公开(公告)日:2022-11-24
申请号:US17817341
申请日:2022-08-03
发明人: Pilsang Yun , Wooyoung Yang , Jangsuk Hyun
IPC分类号: H01M4/525 , C01G53/00 , H01M4/36 , H01M10/0525 , H01B1/06
摘要: A nickel-based active material precursor includes a particulate structure including a core portion, an intermediate layer portion on the core portion, and a shell portion on the intermediate layer portion, wherein the intermediate layer portion and the shell portion include primary particles radially arranged on the core portion, and each of the core portion and the intermediate layer portion includes a cation or anion different from that of the shell portion. The cation includes at least one selected from boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), tungsten (W), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), and aluminium (Al), and the anion includes at least one selected from phosphate (PO4), BO2, B4O7, B3O5, and F.
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公开(公告)号:US11355745B2
公开(公告)日:2022-06-07
申请号:US16463824
申请日:2017-12-04
发明人: Pilsang Yun , Hyunbeom Kim , Hyundeok Lee , Minah Cha , Wooyoung Yang , Jangsuk Hyun
摘要: Provided are a nickel-based active material precursor for a lithium secondary battery including: a first porous core; a second core located on the first porous core and having a higher density than that of the first porous core, a shell located on the second core; and having a radial arrangement structure, wherein an amount of nickel included in the first porous core is greater than or equal to an amount of nickel included in the second core, and the amount of nickel included in the second core is greater than an amount of nickel included in the shell, a method of producing the nickel-based active precursor, a nickel-based active material for a lithium secondary battery, obtained from the nickel-based active precursor, and a lithium secondary battery including a cathode containing the nickel-based active material.
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公开(公告)号:US11552294B2
公开(公告)日:2023-01-10
申请号:US17039739
申请日:2020-09-30
发明人: Jinhwa Kim , Hyunbeom Kim , Jongmin Kim , Wooyoung Yang , Donggyu Chang , Jangsuk Hyun
摘要: 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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公开(公告)号:US10833329B2
公开(公告)日:2020-11-10
申请号:US15829548
申请日:2017-12-01
发明人: Jinhwa Kim , Hyunbeom Kim , Jongmin Kim , Wooyoung Yang , Donggyu Chang , Jangsuk Hyun
摘要: 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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公开(公告)号:US10707485B2
公开(公告)日:2020-07-07
申请号:US15654648
申请日:2017-07-19
发明人: Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
摘要: Provided are a nickel-based active material, a method of preparing the same, 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 including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.
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公开(公告)号:US11444281B2
公开(公告)日:2022-09-13
申请号:US16655068
申请日:2019-10-16
发明人: Pilsang Yun , Wooyoung Yang , Jangsuk Hyun
摘要: A nickel-based active material precursor includes a particulate structure including a core portion, an intermediate layer portion on the core portion, and a shell portion on the intermediate layer portion, wherein the intermediate layer portion and the shell portion include primary particles radially arranged on the core portion, and each of the core portion and the intermediate layer portion includes a cation or anion different from that of the shell portion. The cation includes at least one selected from boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), tungsten (W), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), and aluminium (Al), and the anion includes at least one selected from phosphate (PO4), BO2, B4O7, B3O5, and F.
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公开(公告)号:US11302919B2
公开(公告)日:2022-04-12
申请号:US15654648
申请日:2017-07-19
发明人: Jongmin Kim , Jiyoon Kim , Pilsang Yun , Donggyu Chang , Kwanghwan Cho , Jangsuk Hyun , Jinhwa Kim
摘要: Provided are a nickel-based active material, a method of preparing the same, 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 including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.
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公开(公告)号:US11152618B2
公开(公告)日:2021-10-19
申请号:US16462912
申请日:2017-12-04
发明人: Pilsang Yun , Jongmin Kim , Hyunbeom Kim , Wooyoung Yang , Jangsuk Hyun
IPC分类号: H01M4/525 , C01G53/04 , H01M4/505 , H01M10/052 , H01M4/02
摘要: 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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