The present invention discloses a fuel cell having at least one bi-cell.
The bi-cells may be stacked in series to achieve a desired power output.
Each bi-cell is a unit cell comprising two hydrogen electrodes, two
air/oxygen electrodes, two electrolyte distributors and a gas diffuser.
The hydrogen electrodes are disposed adjacent to one another and the
air/oxygen electrodes are disposed on the outside ends of the hydrogen
electrodes. An electrolyte distributor is disposed between each
adjacently set hydrogen electrode and air/oxygen electrode. A gas
diffuser/distributor is disposed between the hydrogen electrodes. An
elastomeric material is injected between the electrodes and distributors
to provide mechanical stability. Further, the entire bi-cell is
overmolded with an elastomeric material. Ribs are set in the distributors
to prevent the elastomeric material from flowing into areas designed for
electrolyte flow, hydrogen flow and mechanical restraints and to promote
uniform spacing between the various components. When the bi-cell units
are stacked and secured, sufficient openings for air are formed to allow
air to contact the air/oxygen electrodes.