Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Universitá Degli Studi Di Salerno

Bertrand Morel

Stéphane Di Iorio

Stephane Di Iorio

Jacques Pocachard

Christelle Anglade

Cyril Rado

Sébastien Donet

Cesare Pianese

Dario Marra

Maurizio Guida

Fabio Postiglione

Florence Lefebvre-Joud

The invention relates to a method of fabricating a contact element in an electrochemical device () such as an SOFC or an EHT which comprises the following steps: a) use is made of: at least one cell () consisting of an assemblage made up of an electrode to be hydrogenated ()-electrolyte ()-electrode to be oxygenated (); at least one first interconnector (); and at least one second interconnector (); b) at least one layer of a conducting material is deposited on the first interconnector () and/or the second interconnector (); c) an electrochemical device () is assembled; said method being characterized in that: d) a thermomechanical treatment is carried out on the electrochemical device obtained on completion of step c). The invention also relates to an electrochemical device () equipped with at least one contact element () obtained according to this fabrication method.

Method of fabricating contact elements in an electrochemical device such as SOFC or EHT

A method for testing a seal of a part that includes an electrolyte of an electrochemical cell, the method including: forming a closed cavity delimited by a first outer surface of the part including the electrolyte to be tested; contacting a second outer surface of the part, opposite the first surface, with a first fluid; circulating a second fluid, separate from the first fluid, through the closed cavity between an inlet and an outlet of this cavity; and analyzing the fluid extracted via the outlet of the cavity, to detect possible presence of the first fluid.

Non-destructive method for testing the seal of an electrolyte of an electrochemical cell

A method for operating an installation for producing hydrogen including at least one high temperature electrolyzer for producing hydrogen, the electrolyzer including a plurality of elementary cells, each including a cathode and an anode separated by an electrolyte, the elementary cells being separated by an interconnection plate, each interconnection plate defining with an adjacent cathode a cathode compartment and with an adjacent anode an anode compartment, the cathodes being made from a cermet containing nickel, the method including: a) raising a temperature of the cells up to an operating temperature of the electrolyzer comprised between 650&#xb0; C. and 950&#xb0; C.; b) applying a potential difference on terminals of the elementary cells at least equal to 0.62 V.

Method for operating a high-temperature electrolyzer comprising a step of reducing the material of the cathodes

The invention relates to a method for manufacturing an electrolyte for an SOFC battery comprising a CVD (chemical vapor deposition) deposition step, on a substrate, of a stack of at least three layers of materials YSZ/X/YSZ, X being a different material than YSZ.

Electrolyte comprising YSZ for SOFC battery, and method comprising CVD for making same

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Saint Martin le Vinoux, France

Bertrand Morel