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AssigneeE.I. du Pont de Nemours and Company
InventorsDavid P. Bloomfield, Shoibal Banerjee, Olga Y. Polevaya, James J. Ferris
Estimating the term…
An electrochemical cell system including an anode compartment and a cathode compartment separated by a membrane and electrode structure. This structure has an anode surface with a plurality of anodes in a side-by-side arrangement exposed to the anode compartment and a cathode surface with a plurality of cathodes in a side-by-side arrangement exposed to the cathode compartment. The anodes and cathodes are separated by a layer of ion exchange polymer and register with each other so that opposing pairs of anodes and cathodes form cells. The membrane and electrode structure further includes a plurality of current collector screens. The current collector screens have an anode contact area in contact with the anode, a cathode contact area in contact with the cathode and a feed through area extending between cells and crossing from the anode contact area to the cathode contact area to connect the anode and cathode of adjacent cells. The invention provides a polymer electrolyte membrane electrochemical cell system which can be less complicated, lighter in weight and/or is easier to manufacture that existing stack designs.
An electrochemical cell system comprising an anode compartment and a cathode compartment separated by a membrane and electrode structure having a anode surface with a plurality of anodes in a side-by-side arrangement exposed to the anode compartment and a cathode surface with a plurality of cathodes in a side-by-side arrangement exposed to said cathode compartment, said anodes and cathodes comprising electrically-conductive catalyst particles, said anodes and cathodes being separated by a layer of ion exchange polymer and registering so that opposing pairs of anodes and cathodes form cells, said membrane and electrode structure further comprising a plurality of current collector screens, said current collector screens having an anode contact area in contact with said anode, a cathode contact area in contact with said cathode and a feed through area extending between cells and crossing from said anode contact area to said cathode contact area to connect the anode and cathode of adjacent cells.
A process for making a membrane and electrode structure comprising:
Dependencies are inferred from the claim text.