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公开(公告)号：US12080877B2
公开(公告)日：2024-09-03
申请号：US17047884
申请日：2019-05-22
申请人： LG Chem, Ltd.
发明人： Dong Hwi Kim , Dong Hun Lee , Wang Mo Jung , Sung Bin Park , Gi Beom Han
IPC分类号： H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/364 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： A positive electrode material for a lithium secondary battery includes a first positive electrode active material and a second positive electrode active material, both of which are lithium composite transition metal oxides containing transition metals. The first positive electrode active material has a larger average particle size (D50) than the second positive electrode active material, wherein a ratio (Li/Me)1 of the mole number of lithium with respect to the total mole number of transition metals of the first positive electrode active material is more than 1 to 1.5 or less, and a ratio (Li/Me)2 of the mole number of lithium (Li) with respect to the total mole number of transition metals of the second positive electrode active material is 0.9 to 1. The second positive electrode active material has a crystallite size of 180 nm or more.
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2.发明授权公开(公告)号：US11699788B2
公开(公告)日：2023-07-11
申请号：US16758247
申请日：2018-11-21
申请人： LG Chem, Ltd.
发明人： Jung Min Han , Wang Mo Jung , Dong Hun Lee , Sung Bin Park , Ji Hye Kim , Dong Hwi Kim , Hyung Man Cho
IPC分类号： H01M4/525 , H01M4/505 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/525 , H01M4/505 , H01M10/0525 , H01M2004/028
摘要： A positive electrode material for a secondary battery, including a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material and the second positive electrode active material consist of a lithium composite transition metal oxide including at least two or more transition metals selected from the group consisting of nickel (Ni), cobalt (Co) and manganese (Mn) are provided. The average particle size (D50) of the first positive electrode active material is two or more times larger than that of the second positive electrode active material, and the first positive electrode active material has a concentration gradient in which at least one of Ni, Co or Mn contained in the lithium composite transition metal oxide has a concentration difference of 1.5 mol % or more between the center and the surface of a particle of the lithium composite transition metal oxide.
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公开(公告)号：US11508961B2
公开(公告)日：2022-11-22
申请号：US16762363
申请日：2018-11-13
申请人： LG Chem, Ltd.
发明人： Sung Bin Park , Wang Mo Jung , Dong Hun Lee , Ji Hye Kim , Dong Hwi Kim , Hyung Man Cho , Jung Min Han
IPC分类号： H01M4/525 , C01G53/00 , H01M4/505 , H01M10/0525 , H01M4/02
摘要： A method of preparing a positive electrode active material for a secondary battery includes preparing a positive electrode active material precursor including nickel (Ni), cobalt (Co), and at least one selected from the group consisting of manganese (Mn) and aluminum (Al); and forming a lithium composite transition metal oxide by mixing the positive electrode active material precursor and a lithium source and performing calcination, wherein the positive electrode active material precursor includes nickel (Ni) in an amount of 60 mol % or more out of the entire metal element, and a molar ratio (Li/M) of lithium (Li) of the lithium source to the entire metal element (M) of the positive electrode active material precursor is greater than 1.1.
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公开(公告)号：US20220013775A1
公开(公告)日：2022-01-13
申请号：US17413100
申请日：2020-01-07
申请人： LG Chem, Ltd.
发明人： Dong Hun Lee , Sung Bin Park , Hyung Man Cho , Jung Min Han , Jin Tae Hwang , Wang Mo Jung
IPC分类号： H01M4/525 , H01M4/04 , H01M4/505 , H01M10/0525
摘要： A positive electrode active material includes a nickel-based lithium transition metal oxide containing nickel in an amount of 60 mol % or more based on a total number of moles of metals excluding lithium, wherein cobalt is included in an amount of greater than 0 ppm to 6,000 ppm or less on a surface of the nickel-based lithium transition metal oxide. A method of preparing the positive electrode active material, a positive electrode for a lithium secondary battery and a lithium secondary battery which includes the positive electrode active material are also provided.
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公开(公告)号：US20210167365A1
公开(公告)日：2021-06-03
申请号：US17047884
申请日：2019-05-22
申请人： LG Chem, Ltd.
发明人： Dong Hwi Kim , Dong Hun Lee , Wang Mo Jung , Sung Bin Park , Gi Beom Han
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/505 , H01M4/525
摘要： A positive electrode material for a lithium secondary battery according to the present invention includes a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material and the second positive electrode active material are lithium composite transition metal oxides containing transition metals such as nickel (Ni), cobalt (Co) and manganese (Mn), the first positive electrode active material has a larger average particle size (D50) than the second positive electrode active material, a ratio (Li/Me)1 of the mole number of lithium with respect to the total mole number of transition metals of the first positive electrode active material is more than 1 to 1.5 or less, a ratio (Li/Me)2 of the mole number of lithium (Li) with respect to the total mole number of transition metals of the second positive electrode active material is 0.9 to 1, and the second positive electrode active material has a crystallite size of 180 nm or more.
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公开(公告)号：US20210135195A1
公开(公告)日：2021-05-06
申请号：US16762721
申请日：2018-11-21
申请人： LG Chem, Ltd.
发明人： Dong Hwi Kim , Wang Mo Jung , Dong Hun Lee , Sung Bin Park , Ji Hye Kim , Hyung Man Cho , Jung Min Han
摘要： A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.
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7.发明申请公开(公告)号：US20200266438A1
公开(公告)日：2020-08-20
申请号：US16758247
申请日：2018-11-21
申请人： LG Chem, Ltd.
发明人： Jung Min Han , Wang Mo Jung , Dong Hun Lee , Sung Bin Park , Ji Hye Kim , Dong Hwi Kim , Hyung Man Cho
IPC分类号： H01M4/525 , H01M10/0525 , H01M4/505
摘要： A positive electrode material for a secondary battery, including a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material and the second positive electrode active material consist of a lithium composite transition metal oxide including at least two or more transition metals selected from the group consisting of nickel (Ni), cobalt (Co) and manganese (Mn) are provided. The average particle size (D50) of the first positive electrode active material is two or more times larger than that of the second positive electrode active material, and the first positive electrode active material has a concentration gradient in which at least one of Ni, Co or Mn contained in the lithium composite transition metal oxide has a concentration difference of 1.5 mol % or more between the center and the surface of a particle of the lithium composite transition metal oxide.
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8.发明申请公开(公告)号：US20200185714A1
公开(公告)日：2020-06-11
申请号：US16701997
申请日：2019-12-03
申请人： LG Chem, Ltd.
发明人： Jung Min Han , Dong Hun Lee , Sung Bin Park , Hyung Man Cho , Jin Tae Hwang , Wang Mo Jung
IPC分类号： H01M4/505 , H01M4/525 , H01M10/0525
摘要： A positive electrode material and a method of producing thereof is provided. The positive electrode material having a bimodal particle diameter distribution and including large-diameter particles and small-diameter particles, wherein the small-diameter particle is a lithium composite transition metal oxide in the form of a single particle and containing a rock salt phase formed on a surface portion thereof.
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9.发明授权公开(公告)号：US09905325B2
公开(公告)日：2018-02-27
申请号：US15219483
申请日：2016-07-26
申请人： LG Chem, Ltd.
发明人： Byung Chun Park , Ho Suk Shin , Sung-Kyun Chang , Seong Hoon Kang , Dong Hun Lee , Sang Min Park
IPC分类号： H01B1/08 , H01B1/06 , C01G45/00 , C01G51/00 , C01G53/00 , C01B25/45 , C01B13/36 , C01G45/02 , C01G51/04 , C01G53/04 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/052
CPC分类号： H01B1/08 , C01B13/36 , C01B25/45 , C01G45/006 , C01G45/02 , C01G51/006 , C01G51/04 , C01G53/006 , C01G53/04 , C01G53/50 , C01P2006/11 , C01P2006/40 , H01B1/06 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/052
摘要： Disclosed is a transition metal precursor used for preparation of lithium composite transition metal oxide, the transition metal precursor comprising a composite transition metal compound represented by the following Formula 1: M(OH1−x)2−yAy/n (1) wherein M comprises two or more selected from the group consisting of Ni, Co, Mn, Al, Cu, Fe, Mg, B, Cr and second period transition metals; A comprises one or more anions except OH1−x; 0
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10.发明申请TRANSITION METAL PRECURSOR HAVING LOW TAP DENSITY AND LITHIUM TRANSITION METAL OXIDE HAVING HIGH PARTICLE STRENGTH 审中-公开具有低压密度的过渡金属前驱体和具有高颗粒强度的锂过渡金属氧化物公开(公告)号：US20160002063A1
公开(公告)日：2016-01-07
申请号：US14441580
申请日：2014-02-11
申请人： LG CHEM, LTD.
发明人： Jinhyung Lim , Sung-Kyun Chang , Won Seok Chang , Sin Young Park , Ho Suk Shin , Hyun Jin Oh , Jung Min Han , In Sung Uhm , Wang Mo Jung , Dong Hun Lee
IPC分类号： C01G53/04 , H01M4/505 , H01M4/525 , H01M10/052
CPC分类号： C01G53/04 , C01G53/006 , C01G53/50 , C01P2002/50 , C01P2002/52 , C01P2004/61 , C01P2006/11 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/028 , Y02T10/7011
摘要： Disclosed are a transition metal precursor for preparation of a lithium transition metal oxide, in which a ratio of tap density of the precursor to average particle diameter D50 of the precursor satisfies the condition represented by Equation 1 below, and a lithium transition metal oxide prepared using the same. 0
摘要翻译： 公开了一种用于制备锂过渡金属氧化物的过渡金属前体，其中前体的振实密度与前体的平均粒径D50的比率满足下面的等式1所示的条件，以及锂过渡金属氧化物，其使用 一样。 0
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