NOVELTY - Electrical current generation comprises feeding gaseous stream containing ethane ( greater than or equal to 75 wt.%) to anode compartment of fuel cell, removing a stream containing unreacted ethane and resulting alkene from anode compartment, feeding a gaseous stream containing oxygen ( greater than or equal to 20 wt.%) to the cathode compartment of fuel cell, and removing water and unreacted cathode compartment feed stream from cathode compartment. The fuel cell comprises anode and cathode compartments (9, 10). An electrolytic proton conducting ceramic membrane is hermetically sealed between the two compartments.    USE - The method is useful for generating electrical current for fuel cell.    ADVANTAGE - The method improves the performance of fuel cell by the presence of light humidification.    DETAILED DESCRIPTION - Electrical current generation comprises feeding gaseous stream containing ethane ( greater than or equal to 75 wt.%) to anode compartment of fuel cell, removing a stream containing unreacted ethane and resulting alkene from anode compartment, feeding a gaseous stream containing oxygen ( greater than or equal to 20 wt.%) to the cathode compartment of fuel cell, and removing water and unreacted cathode compartment feed stream from cathode compartment. The fuel cell comprises anode and cathode compartments (9, 10). An electrolytic proton conducting ceramic membrane of structure BaCe0.95-75Y0.05-0.15LfO(3-c) is hermetically sealed between the two compartments. The resulting alkene ( greater than or equal to 80 %) is ethylene.    L=lanthanide;    c=oxygen deficiency in ceramic at 500-900 degrees C;and    f=0-0.2, preferably 0.1-0.2.    INDEPENDENT CLAIMS are included for:    (1) ceramic perovskite and ceramic membrane containing barium cesium, lanthanide, yttrium, and oxygen having structure BaCe0.95-75Y0.05-0.15LfO(3-c);    (2) fuel cell comprising anode and cathode compartments and electrolytic proton conducting ceramic membrane.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the fuel cell.    Electrodes (3, 4)    Anode feed stream (7)    Anode compartment and cathode compartment (9, 10)    Electrolytic proton conducting ceramic membrane (11)    Opposed faces (13, 14)