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公开(公告)号：EP4012806A1
公开(公告)日：2022-06-15
申请号：EP20849441.9
申请日：2020-08-06
发明人： YASUDA, Taiki , KATAGIRI, Kazuki , MASUKAWA, Takaaki , TAKASHIMA, Masahiro , CHIBA, Takeshi , KAWAMOTO, Yasunobu , SAKAMOTO, Takahiro , KINOSHITA, Masahiro
摘要： The present invention provides a precursor of a positive electrode active material, capable of obtaining the positive electrode active material that can exhibit a high discharge capacity and high charge/discharge efficiency, by being mounted on a secondary battery using a non-aqueous electrolyte, and the positive electrode active material obtained from the precursor, as well as a method for producing the positive electrode active material.
The nickel composite hydroxide particles that are precursors of a positive electrode active material of a non-aqueous electrolyte secondary battery, having a void ratio of 45.0% or more and 55.0% or less.-
公开(公告)号：EP4276071A1
公开(公告)日：2023-11-15
申请号：EP21917572.6
申请日：2021-11-09
摘要： Provided is a nickel-containing hydroxide capable of obtaining a positive electrode active material having excellent initial charge-discharge efficiency and a high volume capacity density. The nickel-containing hydroxide for a precursor of a positive electrode active material of a non-aqueous electrolyte secondary battery, wherein when a peak intensity of a diffraction peak appearing in the range of 2θ = 19.2 ± 1 in powder X-ray diffraction measurement using CuKα rays is defined as α, and a peak intensity of a diffraction peak appearing in the range of 2θ = 38.5 ± 1 in powder X-ray diffraction measurement using CuKα rays is defined as β, the peak intensity ratio of α/β is 0.80 or more and 1.38 or less, and the average long diameter of primary particles is 290 nm or more and 425 nm or less.
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公开(公告)号：EP3915943A1
公开(公告)日：2021-12-01
申请号：EP19911876.1
申请日：2019-12-04
摘要： The present invention provides a composite hydroxide in which reactivity of a lithium compound is equalized with another composite hydroxide having a large particle diameter.
The composite hydroxide includes at least one metal selected from the group consisting of nickel, cobalt, and manganese, the composite hydroxide being a precursor of a positive electrode active material for a non-aqueous electrolyte secondary battery, wherein a secondary particle diameter with a cumulative volume percentage of 50% by volume (D50) is 4.0 µm or less, tapped density (g/ml)/secondary particle diameter with cumulative volume percentage of 50% by volume (D50) (µm) is 0.60 g/ml●µm or more, and a specific surface area measured by a BET method is 15.0 m 2 /g or less.-
公开(公告)号：EP3306713B1
公开(公告)日：2020-04-08
申请号：EP16803470.0
申请日：2016-06-02
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5.发明公开POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY CELL, POSITIVE ELECTRODE FOR LITHIUM SECONDARY CELL, AND LITHIUM SECONDARY CELL 审中-公开锂二次电池用正极活性材料，锂二次电池用正极以及锂二次电池
公开(公告)号：EP3306713A1
公开(公告)日：2018-04-11
申请号：EP16803470.0
申请日：2016-06-02
发明人： KURITA, Hiroyuki , KAGEURA, Jun-ichi , IMANARI, Yuichiro , IIDA, Yasutaka , YAMASHITA, Daisuke , MASUKAWA, Takaaki , ITO, Hiroyuki
CPC分类号： H01M4/525 , C01G53/50 , C01G53/66 , C01P2002/20 , C01P2002/50 , C01P2002/60 , C01P2004/45 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/17 , C01P2006/40 , H01M4/505 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： A positive electrode active material for a lithium secondary cell, having a layered structure and comprising at least nickel, cobalt and manganese, the positive electrode active material satisfying requirements (1), (2) and (3) below: (1) a composition represented by a composition formula: Li[Li x (Ni α Co β Mn γ M δ ) 1-x ]O 2 , wherein 0 ≦ x ≦ 0.10,0.30
摘要翻译： 1.一种锂二次电池用正极活性物质，其具有层状结构，且至少含有镍，钴和锰，所述正极活性物质满足下述要件（1），（2）和（3）：（1）组合物 其由组成式Li [Lix（NiαCoβMnγMδ）1-x] O2表示，其中0≤x≤0.10,0.30<α≤0.34,0.30<β≤0.34,0.32≤γ<0.40,0≤δ≤0.10，β <γ，δ+α+β+γ= 1，M代表选自Fe，Cu，Ti，Mg，Al，W，Zn，Sn，Zr，Ga和V中的至少一种金属; （2）二次粒径为2μm以上且10μm以下; （3）由水银孔隙率测定法测定的孔径分布中的孔径范围在90nm至150nm的最大峰值。
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