US 10,892,511 B2
Stand-alone system for clamping a high-temperature SOEC/SOFC stack
Magali Reytier, Villard de Lans (FR); Charlotte Bernard, Contamine sur Arve (FR); and Pascal Giroud, Saint Martin d'uriage (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Appl. No. 16/62,373
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
PCT Filed Dec. 12, 2016, PCT No. PCT/EP2016/080655
§ 371(c)(1), (2) Date Jun. 14, 2018,
PCT Pub. No. WO2017/102657, PCT Pub. Date Jun. 22, 2017.
Claims priority of application No. 15 62384 (FR), filed on Dec. 15, 2015.
Prior Publication US 2019/0013539 A1, Jan. 10, 2019
Int. Cl. H01M 8/248 (2016.01); H01M 8/2428 (2016.01); C25B 9/04 (2006.01); C25B 9/20 (2006.01); C25B 1/08 (2006.01); C25B 1/00 (2006.01); H01M 8/028 (2016.01); H01M 8/0273 (2016.01); H01M 8/124 (2016.01); H01M 8/2465 (2016.01)
CPC H01M 8/248 (2013.01) [C25B 1/00 (2013.01); C25B 1/08 (2013.01); C25B 9/04 (2013.01); C25B 9/203 (2013.01); H01M 8/028 (2013.01); H01M 8/2428 (2016.02); H01M 8/0273 (2013.01); H01M 8/2465 (2013.01); H01M 2008/1293 (2013.01); Y02E 60/36 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An assembly, comprising:
a Solid Oxide Electrolyser Cell/Solid Oxide Fuel Cell (SOEC/SOFC) type solid oxide stack, comprising
a plurality of electrochemical cells each including a cathode, an anode, and an electrolyte intercalated between the cathode and the anode,
a plurality of intermediate interconnectors each formed between two adjacent electrochemical cells,
an upper terminal plate and a lower terminal plate, between which the plurality of electrochemical cells and the plurality of intermediate interconnectors are clamped;
a clamping system for the SOEC/SOFC type solid oxide stack, comprising
an upper clamping plate and a lower clamping plate between which the SOEC/SOFC type solid oxide stack is clamped, each of the upper clamping plate and the lower clamping plate comprising at least one clamping orifice, each of the upper and lower terminal plates being in contact with one of the upper and lower clamping plates or in contact with at least one electrical insulation plate of the clamping system, the at least one electrical insulation plate located between the SOEC/SOFC type solid oxide stack and at least one of the upper and lower clamping plates,
at least one clamping rod that extends through a clamping orifice in the upper clamping plate and through a corresponding clamping orifice in the lower clamping plate, the at least one clamping rod configured to connect the upper and the lower clamping plates to each other and to ground,
clamping means at each clamping orifice of the upper and lower clamping plates, the clamping means configured to cooperate with the at least one clamping rod to connect the upper and lower clamping plates to each other, the clamping means comprising at least one first clamping nut associated with at least one clamping washer at each clamping orifice in at least one of the upper and lower clamping plates, the clamping means configured to cooperate with the at least one clamping rod extended through a corresponding clamping orifice;
the at least one clamping rod and the at least one first clamping nut being made from a super alloy based on nickel,
the at least one clamping washer being made of refractory austenitic steel and the upper clamping plate and the lower clamping plate being made of austenitic refractory steel.