NOVELTY - An electrode assembly (2), and the fuel flow and oxide flow membranes (3,4) are assembled in a stack relative to each other such that their manifold openings (9) are aligned and bonded by a sealant. The peripheral edges of the membranes are encapsulated by a thermoplastic resin such that entire periphery of a fuel cell cassette is encapsulated by the resin.    USE - Fuel cell cassette.    ADVANTAGE - Provides an improved fuel cell cassette that is less complex, less costly and more reliable. Allows replacement of failure module easily. Since the stacks are bonded by a sealant labor and manufacturing cost are reduced.    DETAILED DESCRIPTION - A coolant flow membrane (5) is bonded between the fluid flow and oxide flow membranes such that its manifold opening aligns with the other openings. The coolant flow membrane and bipolar plate are assembled in a stack relative to each other such that the reactant is collected and distributed through the manifold openings. The fuel cell cassettes are assembled in a stack relative to each other such that the manifold openings of the cassettes are aligned to form reactant manifold channel.    INDEPENDENT CLAIMS are included for the following:    (1) Fuel cell stack which has a compression unit which is connected to the outer surface of the stack. The compression unit has two end pieces between which a stack structure is positioned such that the reactant manifold openings of the end pieces are aligned. Each end piece has an opening which defines a storage section. The housing ends are chosen from thermoset polymer and glass finer reinforced plastic metal alloy;    (2) Manifold opening bonding method which involves providing a membrane electrode assembly between two non-porous layers. A resin is filled in the manifold opening of the non-porous layers. The resin is solidified such that the non-porous are bonded to each other;    (3) Fuel cell cassette manufacturing method which involves applying a pressure to the membrane electrode assembly through a manifold channel for a predetermined time such that the resin is drawn into the peripheral edges of the stack structure and impregnated into the peripheral edges of the electrode assembly. The resin is solidified to form a bond between the peripheral edges of the electrode assembly and the reactant flow field such that the periphery of the stack structure is encapsulated within the resin; and    (4) Fuel cell stack manufacturing method which involves assembling several fuel cell cassettes such that their manifold openings are aligned to form a reactant manifold channel.    DESCRIPTION OF DRAWING(S) - The figure shows cross-sectional view of the fuel cell cassette.    Electrode assembly (2)    Fluid flow and oxide flow membranes (3,4)    Coolant flow membrane (5)    Manifold openings (9)