FUEL CELL INCLUDING A CATHODE HAVING CHANNELS

摘要

The invention relates to a fuel cell that includes: an anode (10) capable of oxidising a first compound M1 into first M(m+) ions; a first electrolyte (20) that is in contact with said anode; a cathode (50) capable of reducing a second compound N2 into second N(n_) ions; a porous central diaphragm (30), one surface (32) of which is in contact with said first electrolyte (20) and the opposite surface (35) of which is in contact with said cathode, the first electrolyte (20) consisting of a material capable of conducting the M(m+) ions, and the central diaphragm (30) consisting of a material capable of conducting both the M(m+) ions and N(n_) ions. A network of channels (52) passes through the cathode (50), which channels are each connected to the central diaphragm (30) and to a free surface of the cathode (50), the minimum size of the cross-section of any one of said channels (52) being larger than 20 mum so as to enable the product P resulting from the reaction of the M(m+) ions and the N(n_) ions to be discharged from the central diaphragm (30) towards the outside of the fuel cell (1) via said channels (52).