H.c. Starck Gmbh

Umicore

Rüdiger Zertani

Armin Olbrich

Juliane Meese-Marktscheffel

Viktor Stoller

Josef Schmoll

Sven Albrecht

Stefan Malcus

Michael Erb

Matthias Jahn

Gerd Maikowske

Gerd Malkowske

Mirja Sternberg

Petra Scholz

Dirk Paulmann

Henrik Trümpelmann

Michael Kruft

Juliane Meese-Martscheffel

Karl-Heinz Heine

The present invention relates to β-nickel hydroxide doped with aluminum ions, in which the aluminum ions are homogeneously distributed in the crystal lattice of the β-nickel hydroxide, as well as a method for their production. The present invention further relates to the use of the β-nickel hydroxide according to the invention as a precursor material for the production of electrode material for lithium-ion batteries and nickel-metal hydride batteries and as a precursor material in the production of Raney nickel catalysts.

Beta-nickel hydroxide doped with aluminum

The invention is directed to a process for preparing a pulverulent compound of the formula NiM1M2O(OH)where M1 is Fe, Co, Zn, Cu or mixtures thereof, M2 is Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si or mixtures thereof, having the following steps:

Powered compounds, method for the production thereof, and use thereof in lithium secondary batteries

The invention is directed to a pulverulent compound of the formula NiM1M2O(OH)where M1 is at least one element selected from the group consisting of Fe, Co, Zn, Cu and mixtures thereof, M2 is at least one element selected from the group consisting of Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si and mixtures thereof, 0.3&#x2266;a&#x2266;0.83, 0.1&#x2266;b&#x2266;0.5, 0.01&#x2266;c&#x2266;0.5, 0.01&#x2266;x&#x2266;0.99 and 1.01&#x2266;y&#x2266;1.99, wherein the ratio of tapped density measured in accordance with ASTM B 527 to the D50 of the particle size distribution measured in accordance with ASTM B 822 is at least 0.2 g/cm&#xb7;&#x3bc;m. The invention is also directed to a method for the production of the pulverulent compound and the use as a precursor material for producing lithium compounds for use in lithium secondary batteries.

[object Object]

The invention relates to a powder compound of the formula NiMO(OH), wherein M represents Co and at least one element selected from the group consisting of Fe, Zn, Al, Sr, Mg, or Ca and mixtures thereof, or M represents Co Mn and Fe, wherein 0.6&#x2266;a&#x3c;1.0, 0&#x3c;b&#x2266;0.4, 0&#x3c;x&#x2266;0.60, and 1.4&#x2266;y&#x3c;2, wherein the powder compound has a particle size distribution dvalue, measured in accordance with ASTM B 822, of &#x3c;5 &#x3bc;m, and wherein a ratio of tap density, measured in accordance with ASTM B 527, to the particle size distribution dvalue is at least 0.4 g/cm. The invention also relates to a process for preparing the compound and its uses.

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Goslar, Germany

Rüdiger Zertani