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公开(公告)号：EP2883840B1
公开(公告)日：2019-12-18
申请号：EP14822223.5
申请日：2014-01-09
申请人： LG Chem, Ltd.
发明人： JANG, Wook , CHO, Seung Beom , JUN, In Kook
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公开(公告)号：EP3425706A1
公开(公告)日：2019-01-09
申请号：EP17760349.5
申请日：2017-03-03
申请人： LG Chem, Ltd.
IPC分类号： H01M4/525 , H01M4/505 , H01M4/131 , H01M10/0525
摘要： The present disclosure relates to a precursor of a positive electrode active material for a secondary battery including a single layer-structured secondary particle in which pillar-shaped primary particles radially oriented in a surface direction from the particle center are aggregated, wherein the secondary particle has a shell shape, and the primary particle includes a composite metal hydroxide of Ni-Co-Mn of the following Chemical Formula 1, and a positive electrode active material prepared using the same:
[Chemical Formula 1] Ni 1-(x+y+z) Co x M y Mn z (OH) 2
In Chemical Formula 1, M, x, y and z have the same definitions as in the specification.-
公开(公告)号：EP3388394A1
公开(公告)日：2018-10-17
申请号：EP17824508.0
申请日：2017-07-04
申请人： LG Chem, Ltd.
发明人： LEE, Hyuck , CHO, Seung Beom , SON, San Su , JU, Jin Wook , CHOI, Sang Soon , KIM, Jong Pil
IPC分类号： C01G53/00 , H01M4/525 , H01M4/131 , H01M10/0525
摘要： Provided are a method of preparing a positive electrode active material for a secondary battery, in which the positive electrode active material is uniformly doped with various doping elements without worrying about surface damage of the active material and characteristics degradation by including mixing a metal precursor for a positive electrode active material and a raw material including a doping element, in which an average particle diameter ratio is in a range of 5:1 to 2,000:1, using acoustic resonance to prepare a precursor doped with the doping element, and mixing the doped precursor with a lithium raw material and performing a heat treatment, and a positive electrode active material which has improved structure stability by being prepared by the above method and may improve battery characteristics, for example, capacity reduction may be minimized and cycle characteristics may be improved when used in the battery.
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公开(公告)号：EP2868630B1
公开(公告)日：2018-04-25
申请号：EP14814672.3
申请日：2014-07-25
申请人： LG Chem, Ltd.
发明人： KWAK, Ick Soon , CHO, Seung Beom , CHAE, Hwa Seok
IPC分类号： C01D15/00 , C01G45/00 , H01M10/052 , H01M4/62
CPC分类号： H01M4/131 , C01B35/128 , C01G45/00 , C01G45/1214 , C01G45/1242 , C01P2002/32 , C01P2002/50 , C01P2002/52 , C01P2002/54 , C01P2002/74 , C01P2004/61 , C01P2004/62 , C01P2004/80 , C01P2004/84 , C01P2006/12 , C01P2006/40 , H01M4/0402 , H01M4/0471 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2004/028 , H01M2220/20
摘要： Provided are polycrystalline lithium manganese oxide particles represented by Chemical Formula 1 and a method of preparing the same: €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ €ƒ€ƒ€ƒ€ƒ€ƒLi (1+x) Mn (2-x-y-f) Al y M f O (4-z) where M is sodium (Na), or two or more mixed elements including Na, 0‰¤x‰¤0.2, 0
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6.发明授权
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公开(公告)号：EP3331070B1
公开(公告)日：2019-05-15
申请号：EP17775886.9
申请日：2017-03-31
申请人： LG Chem, Ltd.
发明人： KIM, Jong Pil , CHO, Seung Beom , KIM, Won Tae , SON, San Su , LEE, Hyuck
IPC分类号： H01M4/525 , H01M4/505 , H01M4/131 , H01M10/0525 , C01G53/00
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公开(公告)号：EP2924007B1
公开(公告)日：2019-05-15
申请号：EP14738106.5
申请日：2014-01-09
申请人： LG Chem, Ltd.
发明人： JUN, In Kook , CHO, Seung Beom , OH, Myoung Hwan , JANG, Wook
IPC分类号： C01D15/00 , C01G49/00 , C01B25/45 , H01M4/04 , H01M4/133 , H01M4/136 , H01M4/1393 , H01M4/1397 , H01M4/36 , H01M4/58 , H01M4/583 , H01M4/587 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M10/058 , H01M4/02
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公开(公告)号：EP3188291B1
公开(公告)日：2018-05-23
申请号：EP15835195.7
申请日：2015-08-26
申请人： LG Chem, Ltd.
发明人： JANG, Wook , CHO, Seung Beom , KWAK, Ick Soon , AHN, Jun Seong
IPC分类号： H01M4/62 , H01M4/48 , H01M4/139 , H01M2/16 , H01M10/052
CPC分类号： H01M4/628 , H01M2/16 , H01M4/139 , H01M4/48 , H01M4/505 , H01M4/525 , H01M4/62 , H01M4/624 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/30
摘要： The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and conductive nanoparticles, a preparation method thereof, and a lithium secondary battery including the same. The positive electrode active material of which surface is coated with the nanofilm according to the present invention is capable of preventing direct contact of the positive electrode active material with an electrolyte thereby suppressing a side reaction between the positive electrode active material and the electrolyte, and as a result, a lifespan property of a lithium secondary battery using a positive electrode including the same may be significantly improved, and particularly, a lifespan property and conductivity are capable of being enhanced under a high temperature and high voltage condition.
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10.发明授权SURFACE-COATED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME 有权表面包覆的正极活性物质，其制备方法以及包含该物质的锂二次电池
公开(公告)号：EP3188290B1
公开(公告)日：2018-04-25
申请号：EP15835187.4
申请日：2015-08-26
发明人： JANG, Wook , LEE, Sang Young , CHO, Seung Beom , AHN, Jun Seong , PARK, Jang Hoon , KIM, Ju Myung
IPC分类号： H01M4/62 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/60 , H01M10/052 , H01M4/36 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/628 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/60 , H01M4/62 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2004/028
摘要： The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and carbon black, a preparation method thereof, and a lithium secondary battery including the same. The positive electrode active material of which surface is coated with the nanofilm according to the present invention is capable of preventing direct contact of the positive electrode active material with an electrolyte thereby suppressing a side reaction between the positive electrode active material and the electrolyte, and as a result, a lifespan property of a lithium secondary battery using a positive electrode including the same may be significantly improved, and particularly, a lifespan property and conductivity are capable of being enhanced under a high temperature and high voltage condition.
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