초록 ▼

This invention is an improved fuel cell design for use at low pressure. The invention has a reduced number of component parts to reduce fabrication costs, as well as a simpler design that permits the size of the system to be reduced at the same time as performance is being improved. In the present d

This invention is an improved fuel cell design for use at low pressure. The invention has a reduced number of component parts to reduce fabrication costs, as well as a simpler design that permits the size of the system to be reduced at the same time as performance is being improved. In the present design, an adjacent anode and cathode pair are fabricated using a common conductive element, with that conductive element serving to conduct the current from one cell to the adjacent one. This produces a small and simple system suitable for operating with gas fuels or alternatively directly with liquid fuels, such as methanol, dimethoxymethane, or trimethoxymethane. The use of these liquid fuels permits the storage of more energy in less volume while at the same time eliminating the need for handling compressed gases which further simplifies the fuel cell system. The electrical power output of the design of this invention can be further increased by adding a passage for cooling the stack through contact with a coolant.

대표청구항 ▼

1. A low pressure gas electrode comprising:(a) an electrically conducting and supporting substrate; wherein said substrate comprises at least two opposite faces; a plurality of openings allowing passage from one face to an opposite face, said openings encompassing between 10% and 90% of the total ar

1. A low pressure gas electrode comprising:(a) an electrically conducting and supporting substrate; wherein said substrate comprises at least two opposite faces; a plurality of openings allowing passage from one face to an opposite face, said openings encompassing between 10% and 90% of the total area of the substrate; b) an electrically conductive porous material bound to the substrate comprised of an electrically conductive component and a binding component, wherein the electrically conductive component comprises an intimate mixture of a powder and loose fibers; and (c) a catalyst layer bound to the electrically conductive porous material.