COMPOSITION OF AND METHOD OF USING NANOSCALE MATERIALS IN HYDROGEN STORAGE APPLICATIONS
A composition for use, for example, in an electrode in a Nickel-Metal-Hydride battery is provided that consists of metal hydrides together with a certain percentage of nano-sized reactive metal particles, preferably either nickel, manganese, aluminum, cobalt, copper, tin, palladium, silver, gold, lanthanum, and/or alloys thereof. The addition of nano-metals enhances the hydrogen charging characteristics of the battery.
1 . A composition comprising a metal hydride and a plurality of nano-sized particles of reactive metal particles, the composition suitable for application as an electrode in a nickel-metal hydride battery or hydrogen storage material in a fuel storage system.
2 . The composition of claim 1 , wherein the nano-sized metal particles comprise between 0.1 wt % and 30 wt % of the overall composition.
3 . The composition of claim 2 , wherein the nano-sized metal particles comprise between 1 wt % and 5 wt % of the overall composition.
4 . The composition of claim 2 , wherein the nano-sized metal particles comprise between 5 wt % and 10 wt % of the overall composition.
5 . The composition of claim 1 , wherein the nano-sized metal particles are selected from groups IIA, IB, and IIIB-VIIIB of the periodic table.
6 . The composition of claim 5 , wherein the nano-sized metal particles comprise either nickel, manganese, aluminum, cobalt, copper, tin, palladium, silver, gold, lanthanum, and/or alloys thereof.
7 . The composition of claim 1 , wherein the metal hydride comprises a multi-component alloy with a nickel and/or nickel alloy enriched surface coating.
8 . An electrode comprising the composition of claim 1 .
9 . A hydrogen storage device comprising the composition of claim 1 .