NOVELTY - A temporary dilute surfactant water solution is used to enhance mass transport in a fuel cell by directing the temporary dilute surfactant to flow through flow fields, removing the dilute surfactant solution from the fuel cell, and directing the oxygen containing oxidant reactant stream to flow through the cathode flow field and directing the hydrogen containing reducing fluid reactant stream to flow through the anode flow field.    USE - For using a temporary dilute surfactant water solution to enhance mass transport in a fuel cell for generating electrical current from hydrogen containing reducing fluid and oxygen containing oxidant reactant streams to power electrical apparatus, e.g. motors and transportation vehicles.    ADVANTAGE - The invention efficiently enhances mass transport in a fuel cell water and oxidant at high current densities of an operating fuel cell.    DETAILED DESCRIPTION - Using a temporary dilute surfactant water solution to enhance mass transport in a fuel cell for generating electrical current from hydrogen containing reducing fluid fuel and oxygen containing oxidant reactant streams, involves directing the temporary dilute surfactant, removing the dilute surfactant solution from the fuel cell, and directing the oxygen containing oxidant reactant stream to flow through the cathode flow field and directing the hydrogen containing reducing fluid reactant stream to flow through the anode flow field. The fuel cell has a cathode catalyst and an anode catalyst on opposed surfaces of an electrolyte, having a cathode flow field for directing the oxygen containing oxidant reactant stream to pass adjacent to the cathode catalyst and having an anode flow field for directing the hydrogen containing reducing fluid reactant stream to flow adjacent to the anode catalyst. The dilute surfactant water solution has a surface tension of not less than 50 dynes/cm. An INDEPENDENT CLAIM is also included for a fuel cell (10) for generating electrical current from hydrogen containing reducing fluid fuel and oxygen containing oxidant reactant streams, comprising a cathode catalyst and an anode catalyst on opposed surfaces of an electrolyte having a cathode flow field (20), an anode flow field (12), and having a coolant loop (40) including a porous water transport plate (32) secured in fluid communication with the cathode flow field; and a temporary dilute surfactant water solution within the cooling fluid within the coolant loop.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic illustration of a fuel cell.    Fuel cell (10)    Anode flow field (12)    Cathode flow field (20)    Water transport plate (32)    Coolant loop (40)