Manganese (III)-doped nickel (II) hydroxide powders
AssigneeH. C. Starck GmbH
InventorPeter Axmann
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Abstract
The present invention relates to manganese-containing nickel(II) hydroxide powders, wherein at least 50 mole % of the manganese are present in the trivalent oxidation state, a process for the preparation of such powders and battery electrodes and batteries made therefrom.
Claims20
Cation doped nickel(II) hydroxide powders, wherein at least 50 mole % of the cation dopants are present in the trivalent oxidation state, characterized in that 5 to 60 mole % of the dopants present in the trivalent oxidation state are trivalent elements selected from the group consisting of aluminum, gallium, indium, iron, cobalt, chromium and rare earth elements, balance manganese(III).
A process for the preparation of nickel(II) hydroxide powders containing two or more dopants present in trivalent oxidation state and including at least manganese (III), characterized in that the powders are co-precipitated from solutions of nickel(II), manganese(III) and other elements present in the trivalent oxidation state with alkali liquors.
Dependencies are inferred from the claim text.