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公开(公告)号：EP3208872B1
公开(公告)日：2020-04-22
申请号：EP15850691.5
申请日：2015-10-13
发明人： TAKAMORI Kenji , KURITA Hiroyuki , IMANARI Yuichiro , YAMASHITA Daisuke , NAKAO Kimiyasu , DOUMAE Kyousuke
IPC分类号： H01M4/525 , C01G53/00 , H01M4/505 , H01M10/0525 , H01M4/02
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2.发明公开
公开(公告)号：EP3208872A1
公开(公告)日：2017-08-23
申请号：EP15850691.5
申请日：2015-10-13
发明人： TAKAMORI Kenji , KURITA Hiroyuki , IMANARI Yuichiro , YAMASHITA Daisuke , NAKAO Kimiyasu , DOUMAE Kyousuke
CPC分类号： H01M4/525 , C01G53/00 , C01G53/50 , C01P2002/60 , C01P2004/54 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/11 , C01P2006/12 , C01P2006/40 , H01M4/505 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： A positive electrode active material, which has a crystallite size α/crystallite size β ratio (α/β) of 1 to 1.75 or less, wherein the crystallite size α is within a peak region of 2θ = 18.7 ± 1° and the crystallite size β is within a peak region of 2θ = 44.6 ± 1°, each determined by a powder X-ray diffraction measurement using Cu-Kα ray, and has a composition represented by formula (I) below:
Li[Li x (Ni a Co b Mn c M d ) 1-x ]O 2 (I)
wherein 0 ≦ x ≦ 0.2, 0.3-
公开(公告)号：EP3101716B1
公开(公告)日：2018-07-04
申请号：EP15740333.8
申请日：2015-01-26
CPC分类号： H01M4/366 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028 , H01M2220/20 , H01M2220/30
摘要： A positive electrode active material for a lithium secondary battery, comprising a lithium-containing composite metal oxide in the form of secondary particles formed by aggregation of primary particles capable of being doped and undoped with lithium ions, each of the secondary particles having on its surface a coating layer, the positive electrode active material satisfying the following requirements (1) to (3): (1) the metal oxide has an ±-NaFeO 2 type crystal structure of following formula (A): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒLi a (Ni b Co c M 1 1-b-c )O 2 €ƒ€ƒ€ƒ€ƒ€ƒ(A) wherein 0.9 ‰¦ a ‰¦ 1.2, 0.9 ‰¦ b
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4.发明公开POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY 有权POSITIVELEKTRODEN-AKTIVMATERIALFÜRLITHIUMSEKUNDÄRBATTERIEN，POSITIVELEKTRODEFÜRLITHIUMSEKUNDÄRBATTERIENUNDLITHIUMSEKUNDÄRBATTERIE
公开(公告)号：EP3101716A1
公开(公告)日：2016-12-07
申请号：EP15740333.8
申请日：2015-01-26
CPC分类号： H01M4/366 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028 , H01M2220/20 , H01M2220/30
摘要： A positive electrode active material for a lithium secondary battery, comprising a lithium-containing composite metal oxide in the form of secondary particles formed by aggregation of primary particles capable of being doped and undoped with lithium ions, each of the secondary particles having on its surface a coating layer, the positive electrode active material satisfying the following requirements (1) to (3):
(1) the metal oxide has an α-NaFeO 2 type crystal structure of following formula (A):
Li a (Ni b Co c M 1 1-b-c )O 2 (A)
wherein 0.9 ≦ a ≦ 1.2, 0.9 ≦ b 1 represents at least one optional metal selected from Mg, Al, Ca, Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In and Sn;
(2) the coating layer comprises Li and M 2 , wherein M 2 represents at least one optional metal selected from Al, Ti, Zr and W; and
(3) the active material has an average secondary particle diameter of 2 to 20 µm, a BET specific surface area of 0.1 to 2.5 m 2 /g, and a value of 1.0 to 2.0 as a tamped density/untamped density ratio of the active material.摘要翻译： 一种锂二次电池用正极活性物质，其特征在于，含有二次粒子形式的含锂复合金属氧化物，所述二次粒子由能够掺杂和未掺杂有锂离子的初级粒子聚集而形成，所述二次粒子的表面 涂层，正极活性物质满足以下要求（1）〜（3）：（1）金属氧化物具有下式（A）的±-NaFeO 2型结晶结构：ƒ€ƒ€ƒ€ ƒ€ƒ€ƒ€ƒ€ƒLia（Ni b Co c M 1 1-bc）O 2€ƒ€ƒ€ƒ€ƒ（A）其中0.9‰| a‰| 1.2，0.9‰| b < 1，0
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