(US5178968-A)      Fuel stack comprises a number of fuel cells juxtaposed with each other and each including a pair of porous plate-shaped anodes and cathodes with a liq. electrolyte between them; means to supply gaseous fuel and O2 to anode and cathode respectively; separator plates between the electrodes means to unify separator plates with cathode and anode plates including a sheet of non-electrolyte-wettable material (I) between the separator plate and the electrode; and means to prevent flow of electric shunt current between successive electrodes.    (I) is pref. fluoroethylenepropylene (sic).    USE/ADVANTAGE -   There is no cell to cell migration of electrolyte.    (EP504752-B1)      Fuel cell stack fuel cells (11) each including a porous plate anode (13) and cathode (14), interposed liq. electrolyte (15) and separator plate (1) between electrodes of adjacent cells. The separator plates are unified with the electrodes by forcing most of an electrolyte non-wettable material (I) (18,19), which is originally introduced into the interface as a sheet, into the pores of the respective electrodes.    A circumferentially complete barrier (23) that prevents flow of shunt currents onto and on an outer peripheral surface of the separator plate is formed by extruding the remainder of (I) out of the interface.    The separator plate and/or the electrode plate defining the interface has a bevelled edge at a region facing the interface and to define a recess which (partially) accommodates the barrier. The integral separator plate is claimed.    ADVANTAGE -   Undesirable shunt currents are avoided in a simple, low cost manner. Barrier (23) also prevents cell-to-cell migration of electrolyte at the edges of the integral separator.    .D    (JP2829184-B2)      Fuel cell stack fuel cells (11) each including a porous plate anode (13) and cathode (14), interposed liq. electrolyte (15) and separator plate (1) between electrodes of adjacent cells. The separator plates are unified with the electrodes by forcing most of an electrolyte non-wettable material (I) (18,19), which is originally introduced into the interface as a sheet, into the pores of the respective electrodes.    A circumferentially complete barrier (23) that prevents flow of shunt currents onto and on an outer peripheral surface of the separator plate is formed by extruding the remainder of (I) out of the interface.    The separator plate and/or the electrode plate defining the interface has a bevelled edge at a region facing the interface and to define a recess which (partially) accommodates the barrier. The integral separator plate is claimed.    ADVANTAGE -   Undesirable shunt currents are avoided in a simple, low cost manner. Barrier (23) also prevents cell-to-cell migration of electrolyte at the edges of the integral separator.    .D