NOVELTY - Fuel cell comprises membrane electrode assemblies (140) comprise anode/cathode reaction sides, rigid hydrophilic gaskets (150) abutted between first mono-sided channel plate and anode reaction side of one of membrane electrode assemblies, between cathode reaction side of one of membrane electrode assemblies and first side channel of double-sided channel plate between second side channel of double-sided channel plate and anode reaction side of one of membrane electrode assemblies, and between cathode reaction side of one of membrane electrode assemblies and second mono-sided channel plate.    USE - As a fuel cell (claimed), for preventing leakage and mixing of fuel and oxygen.    ADVANTAGE - The fuel cell provides high hardness and the rigid hydrophilic gaskets do not deflect or deform even though the fuel cell is subjected to a non-uniform fastening force during its assembly or is subjected to an external impact, securing the separation between the first mono-sided channel plate and the membrane electrode assembly, between the membrane electrode assembly and the double-sided channel plate, and between the membrane electrode assembly and the second mono-sided channel plate, and further prevents leakage and mixing of the methanol and oxygen. Thus, the operational efficiency and safety of the fuel cell is significantly enhanced. As the rigid hydrophilic gaskets are attached to the first mono-sided channel plate, the anode reaction sides and cathode reaction sides of the membrane electrode assemblies, the double-sided channel plates, and the second mono-sided channel plate by the polar groups and water, an adhesion process employing glue can be omitted, effectively enhancing convenience for assembly of the fuel cell.    DETAILED DESCRIPTION - A fuel cell, comprises a first mono-sided channel plate (121); at least one double-sided channel plate (130) comprising a first side channel and a second side channel opposite and separated from the first side channel; a second mono-sided channel plate (122); membrane electrode assemblies (140) respectively disposed between the first mono-sided channel plate and the double-sided channel plate and between the double-sided channel plate and the second mono-sided channel plate, where the membrane electrode assemblies comprise anode reaction sides and cathode reaction sides, the anode reaction sides respectively connect to a channel of the first mono-sided channel plate and the second side channel of the double-sided channel plate, and the cathode reaction sides respectively connect to the first side channel of the double-sided channel plate and a channel of the second mono-sided channel plate; and rigid hydrophilic gaskets (150) respectively abutted between the first mono-sided channel plate and the anode reaction side of one of the membrane electrode assemblies, between the cathode reaction side of one of the membrane electrode assemblies and the first side channel of the double-sided channel plate, between the second side channel of the double-sided channel plate and the anode reaction side of one of the membrane electrode assemblies, and between the cathode reaction side of one of the membrane electrode assemblies and the second mono-sided channel plate.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic partial cross section view of fuel cell.    First mono-sided channel plate (121)    Second mono-sided channel plate (122)    Double-sided channel plate (130)    Membrane electrode assemblies (140)    Rigid hydrophilic gaskets (150)