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US 7,070,878 B2Granted
Multi-layered oxygen electrode with peroxide decomposition catalyst
AssigneeOvonic Fuel Cell Company LLC
InventorsSrinivasan Venkatesan, Hong Wang, Stanford R. Ovshinsky, Boyko Aladjov, Subhash Dhar
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Abstract
A layered oxygen electrode incorporating a peroxide decomposition catalyst. The design of the oxygen electrode promotes oxygen dissociation and absorption within the oxygen electrode. The oxygen electrode has differing layers of hydrophobicity which allow chemical impregnation of the active catalyst material into the oxygen electrode where the active catalyst material is needed most.
Claims18
An oxygen electrode comprising:
- a porous active material layer;
- a porous gas diffusion layer disposed adjacent to said porous active material layer;
- and
- a peroxide decomposition catalyst incorporated within said active material layer;
- a first current collector grid disposed adjacent to said porous active material layer opposite said porous gas diffusion layer;
- and
- a second current collector grid disposed adjacent to said porous gas diffusion layer opposite said porous active material layer;
- said porous active material layer and said porous gas diffusion layer each having a built-in hydrophobic character wherein said porous gas diffusion layer has a greater hydrophobic character than said porous active material layer.
5 more elements
Dependencies are inferred from the claim text.