Abstract:
본발명은일반식 (I) 에따른미립자물질의제조방법으로서, NiCoMnM(O)(OH)(I) [식중, M 은 Al 및 Ti 로부터선택되고, x 는 0.01 내지 0.9 의범위에있고, y 는 1.1 내지 1.99 의범위에있고, a 는 0.3 내지 0.85 의범위에있고, b 는 0.05 내지 0.4 의범위에있고, c 는 0.1 내지 0.5 의범위에있고, d 는 0.001 내지 0.03 의범위에있으며, 여기서 a + b + c + d = 1 임], (a) 알루미늄히드록시드또는티타늄디옥시드입자의수성슬러리를제공하는단계, (b) 니켈, 코발트및 망간의수용성염의수용액과알칼리금속히드록시드의용액을단계 (a) 에따른슬러리에첨가하여, 단계 (a) 에따른입자상에니켈및 코발트및 망간히드록시드의혼합히드록시드층을공침시키는단계, (c) 상기와같이하여수득된 (NiCoMnAl)(OH)또는 (NiCoMnTi)(OH)의입자를제거하고, 산소존재하에서상기입자를건조시키는단계를 포함하는, 미립자물질의제조방법에관한것이다.
Abstract:
The present invention is directed towards a process for making a lithiated transition metal oxide, said process comprising the following steps: (a) providing a precursor selected from mixed oxides, hydroxides, oxyhydroxides, and carbonates of nickel and at least one transition metal selected from manganese and cobalt, wherein at least 45 mole-% of the cations of the precursor are Ni cations, (b) mixing said precursor with at least one lithium salt selected from LiOH, Li2O, Li2CO3, and LiNO3, thereby obtaining a mixture, (c) adding at least one phosphorus compound of general formula (I) XyH3-yPO4 (I) wherein X is selected from NH4 and Li, y is 1 or 2, to the mixture obtained in step (b), wherein steps (b) and (c) may be performed consecutively or simultaneously, treating the mixture so obtained at a temperature in the range of from 650 to 950°C.
Abstract translation:本发明涉及一种制备锂化过渡金属氧化物的方法,所述方法包括以下步骤:(a)提供一种选自镍的混合氧化物,氢氧化物,羟基氧化物和碳酸盐的前体和至少一种选自以下的过渡金属: 锰和钴,其中前体的至少45摩尔%的阳离子是Ni阳离子,(b)将所述前体与至少一种选自LiOH,Li 2 O,Li 2 CO 3和LiNO 3的锂盐混合,从而得到混合物( c)向步骤(b)中获得的混合物中加入至少一种其中X选自NH 4和Li,y为1或2的通式(I)XyH 3-y PO 4(I)的磷化合物,其中步骤(b) 和(c)可以连续或同时进行,在650-950℃的温度范围内处理如此获得的混合物。
Abstract:
Electrode active material comprising (A) a core material according to general formula Li1+x1TM1-x1O2 wherein TM is a combination of Ni and at least one of Mn, Co and Al, and, optionally, at least one more metal selected from Mg, Ti, Zr, Nb, Ta, and W, and x1 is in the range of from -0.05 to 0.2, and (B) particles of cobalt compound(s) and of titanium compound(s) and of zirconium compound(s) and of aluminum compound(s) in which the average oxidation state of cobalt is higher than +II and lower than +III and wherein the molar ratio of lithium to cobalt in said particles is in the range of from zero to 1 and wherein said particles are attached to the surface of the core material.
Abstract:
The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bM1 bV2-cM2 c(PO4)x (I) with M1: Na, K, Rb and/or Cs, M2: Ti, Zr, Nb, Cr, Mn, Fe, Co, Ni, Al, Mg and/or Sc, a: 1.5 - 4.5, b: 0 - 0.6, c: 0 - 1.98 and x: number to equalize the charge of Li and V and M1 and/or M2, if present, wherein a-b is > 0, by providing an essentially aqueous mixture comprising at least one lithium-comprising compound, at least one vanadium-comprising compound in which vanadium has the oxidation state +5 and/or +4, and at least one M1-comprising compound, if present, and/or at least one M2-comprising compound, if present, and at least one reducing agent which is oxidized to at least one compound comprising at least one phosphorous atom in oxidation state +5, drying and calcining.
Abstract:
The present invention relates to a process for the preparation of compounds of general formula (I) : Lia-bM1 bV2-cM2 c(PO4)x; wherein M1, M2, a, b, c and x have the following meanings: M1: Na, K, Rb and/or Cs, M2: Ti, Zr, Nb, Cr, Mn, Fe, Co, Ni, Al, Mg and/or Sc, a: 1.5 - 4.5, b: 0 - 0.6, c: 0 - 1.98 and x: number to equalize the charge of Li and V and M1 and/or M2, if present, wherein a-b is > 0, to a compound according to general formula (I) as defined above, to spherical agglomerates and/or particles comprising at least one compound of general formula (I) as defined above, to the use of such a compound for the preparation of a cathode of a lithium ion battery or an electrochemical cell, and to a cathode for a lithium ion battery, comprising at least one compound as defined above.
Abstract:
The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bM1 bV2-cM2 c(PO4)x (I) with M1: Na, K, Rb and/or Cs, M2: Ti, Zr, Nb, Cr, Mn, Fe, Co, Ni, Al, Mg and/or Sc, a: 1.5 - 4.5, b: 0 - 0.6, c: 0 - 1.98 and x: number to equalize the charge of Li and V and M1 and/or M2, if present, wherein a-b is > 0, by providing an essentially aqueous mixture comprising at least one lithium-comprising compound, at least one vanadium-comprising compound in which vanadium has the oxidation state +5 and/or +4, and at least one M1-comprising compound, if present, and/or at least one M2-comprising compound, if present, and at least one reducing agent which is oxidized to at least one compound comprising at least one phosphorous atom in oxidation state +5, drying and calcining.
Abstract:
The present invention relates to a process for the preparation of compounds of general formula (I) : Lia-bM1 bV2-cM2 c(PO4)x; wherein M1, M2, a, b, c and x have the following meanings: M1: Na, K, Rb and/or Cs, M2: Ti, Zr, Nb, Cr, Mn, Fe, Co, Ni, Al, Mg and/or Sc, a: 1.5 - 4.5, b: 0 - 0.6, c: 0 - 1.98 and x: number to equalize the charge of Li and V and M1 and/or M2, if present, wherein a-b is > 0, to a compound according to general formula (I) as defined above, to spherical agglomerates and/or particles comprising at least one compound of general formula (I) as defined above, to the use of such a compound for the preparation of a cathode of a lithium ion battery or an electrochemical cell, and to a cathode for a lithium ion battery, comprising at least one compound as defined above.