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1.发明公开
公开(公告)号：EP3240068A1
公开(公告)日：2017-11-01
申请号：EP15873056.4
申请日：2015-12-22
CPC分类号： H01M4/505 , H01M4/525 , H01M10/0525
摘要： A positive electrode active material for a lithium secondary battery, including secondary particles formed by aggregation of primary particles capable of being doped and undoped with lithium ions, said positive electrode active material having: an α-NaFeO 2 type crystal structure represented by formula: Li[Li x (Ni a Co b Mn c M d ) 1-x ]O 2 (I), wherein 0 ≦ x ≦ 0.1, 0.7
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公开(公告)号：EP3770121A1
公开(公告)日：2021-01-27
申请号：EP19772016.2
申请日：2019-03-22
发明人： NAGAO Daisuke , KAGEURA Jun-ichi , MAEDA Yusuke
摘要： A lithium composite metal oxide containing a secondary particle that is an aggregate of primary particles, in which, when a cross-sectional image of the secondary particle is acquired, and the cross-sectional image is observed, a content proportion of reference primary particles present in a central part of the secondary particle is 20% or more and 50% or less, and a content proportion of reference primary particles present in a surface part of the secondary particle is 30% or more and 100% or less.
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公开(公告)号：EP3373369A1
公开(公告)日：2018-09-12
申请号：EP16862195.1
申请日：2016-11-04
发明人： ARIMURA Takashi , KAGEURA Jun-ichi , TAKAMORI Kenji , NAKAO Kimiyasu , YAMASHITA Daisuke , MAEDA Yusuke
CPC分类号： H01M4/525 , C01G53/42 , H01M4/131 , H01M4/505 , H01M10/0525 , H01M2004/028
摘要： A positive electrode active material for lithium secondary batteries which is able to doped/undoped with lithium ions and contains at least Ni, in which a ratio P/Q (atom%/mass%) of a concentration P (atom%) of sulfur atoms being present in a surface of the positive electrode active material to a concentration Q (mass%) of sulfuric acid radicals being present in the whole positive electrode active material is more than 0.8 and less than 5.0, and the Q (mass%) is 0.01 or more and 2.0 or less.
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公开(公告)号：EP3240068B1
公开(公告)日：2020-04-01
申请号：EP15873056.4
申请日：2015-12-22
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公开(公告)号：EP3706214A1
公开(公告)日：2020-09-09
申请号：EP18873337.2
申请日：2018-10-29
发明人： KAGEURA Jun-ichi , MATSUMOTO Kayo
摘要： A lithium composite metal compound is a lithium composite metal compound represented by Composition Formula (I), in which in a powder X-ray diffraction measurement using CuKa radiation, when a crystallite diameter representing a diffraction peak in a range of 2θ = 18.7 ± 1Å is defined as L a and a crystallite diameter representing a diffraction peak in a range of 2θ = 64.5 ± 1Å is defined as L b , a ratio (La/Lb) of L a to L b is L a /L b ≤ 1.3.
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公开(公告)号：EP3678235A1
公开(公告)日：2020-07-08
申请号：EP18878879.8
申请日：2018-11-20
发明人： KAGEURA Jun-ichi , KOBAYASHI Ryota
摘要： A positive-electrode active material for a lithium secondary battery includes: a secondary particle in which a plurality of primary particles of a lithium composite metal oxide are aggregated, in which the secondary particle has a void formed therein, and a through-hole that connects the void to a surface of the secondary particle, and satisfies predetermined requirements (i) to (iii).
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公开(公告)号：EP3534442A1
公开(公告)日：2019-09-04
申请号：EP17865733.4
申请日：2017-10-31
摘要： The present invention provides a positive electrode active material for lithium secondary batteries including: secondary particles obtained by aggregating primary particles capable of being doped and de-doped with lithium ions, in which the secondary particles have pores, and pore distribution obtained by a mercury intrusion method satisfies requirements (1) and (2) below:
(1) pores that are present in any one or both of the secondary particles or spaces between the secondary particles have a pore peak within a range of a pore radius of equal to or greater than 10 nm and equal to or less than 200 nm; and
(2) a total surface area of pores that have pore radii of equal to or greater than 100 nm and equal to or less than 10 µm among the pores that are present in any one or both of the secondary particles or spaces between the secondary particles is less than 1.1 m 2 /g.-
公开(公告)号：EP4092782A1
公开(公告)日：2022-11-23
申请号：EP21741166.9
申请日：2021-01-15
IPC分类号： H01M4/131 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/0562 , H01M10/0585
摘要： A positive electrode active material for an all-solid-state lithium-ion battery composed of particles containing crystals of a lithium metal composite oxide, wherein the particles have a layered structure and contain at least Li and a transition metal, and in powder x-ray diffraction measurement using CuKa rays, a ratio I 003 /I 104 of an integrated intensity I 104 of a diffraction peak in a range of 2θ=44.4±1° to an integrated intensity I 003 of a diffraction peak in a range of 2θ=18.5±1° exceeds 1.23, and wherein a press density A when the positive electrode active material for an all-solid-state lithium-ion battery is compressed at a pressure of 45 MPa is 2.90 g/cm 3 or more.
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公开(公告)号：EP4074658A1
公开(公告)日：2022-10-19
申请号：EP20897956.7
申请日：2020-12-11
发明人： KAGEURA Jun-ichi , MATSUO Yoji , HARA Syusaku
摘要： The present invention relates to a lithium metal composite oxide with a layered structure wherein: at least Li, Ni, and an element X are included; the element X is at least one element selected from the group consisting of Co, Mn, Mg, Ca, Sr, Ba, Zn, B, Al, Ga, Ti, Zr, Ge, Fe, Cu, Cr, V, W, Mo, Sc, Y, Nb, La, Ta, Tc, Ru, Rh, Pd, Ag, Cd, In, and Sn; and an average three-dimensional particle unevenness of primary particles with an equivalent spherical diameter of at least 1.0 µm is at least 1.91 and less than 2.9.
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