Abstract: A high-temperature module for electrolysis of water with improved operational safety, in which steam containing at most 1% hydrogen can be made to flow simultaneously in each cathode and in each anode, as a draining gas, of a stack of cells. The stack of cells is housed in a sealed case and a mechanism for clamping by compression of the stack is included. The risks of leaks likely to cause impairments of efficiency and breakages of all or part of a stack EHT electrolyzer are reduced, while a high level of efficiency is provided due to the fact that satisfactory electrical conduction is maintained by compression of the stack.

Abstract: The fuel cell base module stacking structure has large compactness, very litte ohmic losses and ease as for implementing the seal of the assembly. It consists of a concentric stack of several fuel cell base cells each consisting on either side of an interconnector (24) sandwiching an anode (21), an electrolyte (22) and a cathode (23), each cell being thereby placed upon each other. The module is completed with two cases for distributing combustible gases. Application to gas fuel cells of the SOFC type.

Abstract: A high-temperature module for electrolysis of water with improved operational safety, in which steam containing at most 1% hydrogen can be made to flow simultaneously in each cathode and in each anode, as a draining gas, of a stack of cells. The stack of cells is housed in a sealed case and a mechanism for clamping by compression of the stack is included. The risks of leaks likely to cause impairments of efficiency and breakages of all or part of a stack EHT electrolyser are reduced, while a high level of efficiency is provided due to the fact that satisfactory electrical conduction is maintained by compression of the stack.

Abstract: The module comprises a reinforced sealing device at the outlet of stacked cells (10). It essentially comprises a distribution box (20), a collection box (30) and a concentric stack of elementary cells (10) intercalated with interconnectors (12). An upper seal (50) is placed at the outlet of the cells (10) into which penetrate the walls (38) of the collection box (30). Inner (44) and outer (45) ferrules form tanks at the outlet of the chambers and themselves open into cavities (37) formed by the walls (38). The invention applies to SOFC type fuel cells and SOEC type electrolysers.

Abstract: A fuel cell module according to the invention, of concentric type, can consist of parts fabricated independently of each other whilst ensuring efficient electric connection between these parts and the limiting of stresses inside the stack. It chiefly consists of a central stack (20) of several elementary cells of a fuel cell, separated from each other by interconnects (10). These are formed of a central metal partition carrying flexible, notched collars. The assembly is completed by a base (50) and flange (40) ensuring distribution of the combustible gases. Application to fuel cells of SOFC type.

Abstract: Elementary electro-chemical cells and interconnectors composed firstly of a gas separation tube and secondly of a plurality of balls occupy the spaces between these gas separation tubes and elementary cells, are thus inserted alternately. The balls allow uniform distribution of gas on cell operational surfaces and increase the number of electrical contacts between the separation tubes and the elementary cells.

Abstract: The fuel cell base module stacking structure has large compactness, very litte ohmic losses and ease as for implementing the seal of the assembly. It consists of a concentric stack of several fuel cell base cells each consisting on either side of an interconnector (24) sandwiching an anode (21), an electrolyte (22)and a cathode (23), each cell being thereby placed upon each other. The module is completed with two cases for distributing combustible gases. Application to gas fuel cells of the SOFC type.

Abstract: A fuel cell module according to the invention, of concentric type, can consist of parts fabricated independently of each other whilst ensuring efficient electric connection between these parts and the limiting of stresses inside the stack. It chiefly consists of a central stack (20) of several elementary cells of a fuel cell, separated from each other by interconnects (10). These are formed of a central metal partition carrying flexible, notched collars. The assembly is completed by a base (50) and flange (40) ensuring distribution of the combustible gases. Application to fuel cells of SOFC type.

Abstract: The module comprises a reinforced sealing device at the outlet of stacked cells (10). It essentially comprises a distribution box (20), a collection box (30) and a concentric stack of elementary cells (10) intercalated with interconnectors (12). An upper seal (50) is placed at the outlet of the cells (10) into which penetrate the walls (38) of the collection box (30). Inner (44) and outer (45) ferrules form tanks at the outlet of the chambers and themselves open into cavities (37) formed by the walls (38). The invention applies to SOFC type fuel cells and SOEC type electrolysers.