Back to results
US 2004/0175615 A1Published application
Performance enhancing additive material for the nickel hydroxide positive electrode in rechargeable alkaline cells
AssigneeOvonic Battery Company, Inc.
InventorsStanford R. Ovshinsky, Boyko Aladjov, Srinivasan Venkatesan, Bora Tekkanat, Meera Vijan, Hong Wang, Subhash K. Dhar
Life of this patent
Estimating the term…
Abstract
A conductive additive for the positive nickel electrode for electrochemical cells which provides increased performance by suppressing an oxygen evolution reaction occurring parallel to the oxidation of nickel hydroxide, increasing conductivity of the electrode and/or consuming oxygen produced as a result of the oxygen evolution reaction.
Claims25
An active material composition for a nickel positive electrode comprising:
- a nickel hydroxide material;
- and
- an additive material comprising a metal oxide;
- wherein said metal oxide is one or more of:
- a) a single metal oxide containing one metal selected from the group consisting of Ce, Ti, Mo, V, W, Sn, Mn, In, Y, Sm, and Nb;
- and
- b) a binary or higher non-stoichiometric, solid solution, oxide containing two metals selected from the group consisting of Ti, Mo, V, W, Sn, Mn, In, Y, Sm, Nb, Ce, and Mm.
4 more elements
An active material composition for a nickel positive electrode comprising:
- a nickel hydroxide material;
- and
- an additive material comprising a titanium oxide.
Dependencies are inferred from the claim text.