NOVELTY - An electrochemical cell stack module (100) comprises an electrochemical cell stack containing at least one non-conductive frame; and a structural reinforcement (200) containing the electrochemical cell stack. The reinforcement comprises a first endplate (202), a second endplate (204) and at least one connector (206) fixedly attached to at least one of endplates along an axial direction and adapted to compress at least one of the endplates to the end of the electrochemical cell stack.    USE - As electrochemical cell stack module useful as hydrogen generators to produce hydrogen and oxygen gases; and as stack of cells such as electrochemical cells, galvanic cells, fuels cells e.g. solid oxide fuel cells, polymer electrolyte membrane type fuel cells, and alkaline fuel cells.    ADVANTAGE - The reinforcement extends through the first endplate and the second endplate and compresses the first endplate and the second endplate against the electrochemical cell stack internal to the reinforcement, thereby sealing a gas generation cell within the reinforcement and thus providing enhanced creep resistance of the electrochemical cell stack. The structural reinforcements permit internal pressure to build up within the stacks with minimal and/or without any pressure related creep, resulting in increased the system efficiency. The construction of the repeat plate is simple and avoids the use of seals and gasket.    DETAILED DESCRIPTION - An electrochemical cell stack module (100) comprises an electrochemical cell stack containing at least one non-conductive frame that supports at least one of an anode, a cathode, a top diaphragm, and a lower diaphragm of a repeat plate; and a structural reinforcement (200) for containing the electrochemical cell stack. The reinforcement comprises a first endplate (202), a second endplate (204) and at least one connector (206) fixedly attached to at least one of endplates along an axial direction and adapted to compress at least one of the endplates to the end of the electrochemical cell stack. The first endplate, the second endplate and the at least one connector are formed of a creep resistant material. At least one of the endplates defines a current collector of the electrolyzer. The first and second endplates and the at least one connector prevent longitudinal deflection during operation of the electrochemical cell stack. The non-conductive frame comprises a material having a maximum working temperature of 50-300degrees C. The cylindrical sleeve is comprised of a non-conductive material or a wound filament.    DESCRIPTION OF DRAWING(S) - The figure shows a partial exploded perspective view of the electrochemical cell stack including non-conductive frames for supporting components of the electrolyzer.    Electrochemical cell stack module (100)    Structural reinforcement (200)    First endplate (202)    Second endplate (204)    Connector. (206)