Patent ID: 7442462

Claim:
A fuel cell for generating electrical current through an electrochemical reaction between a fuel gas and an oxidant gas, comprising: a housing having an axis of rotation; at least one membrane electrode assembly in said housing; a first compartment in said housing for storing fuel gas, said first compartment being selectively connectable in fluid communication with said at least one membrane electrode assembly, said first compartment extending a full height of said housing along said axis of rotation; a second compartment in said housing for storing oxidant gas, said second compartment being selectively connectable in fluid communication with said at least one membrane electrode assembly, said second compartment extending a full height of said housing along said axis of rotation, said first and second compartments being disposed relative to a rotational axis of said housing for rotational symmetry; at least one activation device for initiating the electrochemical reaction by providing fluid communication between said at least one membrane electrode assembly and said first and second compartments; said at least one activation device including pivoting arms on supports that swing downward and outward upon subjecting the device to inertial forces; and an electrical connection to said at least one membrane electrode assembly for collecting power produced by fuel cell.