NOVELTY - A fuel cell with electrolyte stabilizing agent is manufactured by providing fuel cell component layers containing electrochemically active layers which has anode layer (13), cathode layer (12), and electrolyte membrane layer (11) and electrochemically non-active layers which have gas diffusion layer (20, 21) and microporous layer (23, 24), combining electrolyte stabilizing agent and hydrophobic agent into solution or dispersion, applying solution or dispersion to greater than or equal to 1 non-active layers to form greater than or equal to 1 treated non-active layers, and stacking electrochemically active and treated non-active layers.    USE - Manufacture of fuel cell with electrolyte stabilizing agent (claimed).    ADVANTAGE - Durability of electrolyte layer is improved as a result of cerium ion migration to electrolyte layer during fuel cell operation.    DETAILED DESCRIPTION - A fuel cell with electrolyte stabilizing agent is manufactured by providing fuel cell component layers containing electrochemically active layers which has anode layer (13), cathode layer (12), and electrolyte membrane layer (11) and electrochemically non-active layers which have gas diffusion layer (20, 21) and microporous layer (23, 24), combining electrolyte stabilizing agent and hydrophobic agent into solution or dispersion, applying solution or dispersion to greater than or equal to 1 non-active layers to form greater than or equal to 1 treated non-active layers such that electrolyte stabilizing agent and hydrophobic agent are combined and incorporated in greater than or equal to 1 treated non-active layers, and stacking electrochemically active and treated non-active layers together such that electrolyte stabilizing agent provides a metal ion from treated non-active layer to active layer during operation of fuel cell. The electrolyte stabilizing agent contains zinc phthalocyanine, copper phthalocyanine, iron phthalocyanine, or cobalt phthalocyanine, or organometallic complex of Cu2+, Cu+1, Ce3+, Ce4+, Mn2+, Mn3+, or Zn2+. An INDEPENDENT CLAIM is included for fuel cell comprising electrolyte layer (11), gas diffusion layer (20, 21), microporous layer (23, 24), anode, cathode, and bipolar plate (30, 33) in which electrolyte stabilizing agent is placed on or in gas diffusion layer, microporous layer, anode, cathode, and/or bipolar plate, contains organometallic complex, and has an affinity for electrolyte layer so that a metal ion which is cerium ion of the electrolyte stabilizing agent migrates to the electrolyte layer.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional diagram of a fuel cell.    Electrolyte layer (11)    Cathode layer (12)    Anode layer (13)    Gas diffusion layer (20, 21)    Microporous layer (23, 24)    Bipolar plate (30, 33)