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

Renault S.a.s.

Christophe Robin

Mathias Gerard

Remi Vincent

Lara Jabbour

Jean-Philippe Poirot-Crouvezier

Rémi Vincent

Fabrice Micoud

Fredy-Intelligent Nandjou Dongmeza

Sabri Derdiche

A method is provided for determining a spatial distribution (R) of a parameter of interest (R) representative of the electrical power production of an electrochemical cell, including steps of determining the spatial distribution (R) the parameter of interest (R) depending on a spatial distribution (Q) of a second thermal quantity (Q) estimated beforehand from a spatial distribution (T) of a set-point temperature (T) and from a spatial distribution (D) of a first thermal quantity (D).

Determination of a spatial distribution of an electrical production parameter of an electrochemical cell

A method for producing an electrochemical cell is provided, the method including determining a spatial distribution (k) of a parameter of interest (k) representative of a permeability of a diffusion layer of at least one electrode of a reference electrochemical cell in operation, the determining being performed by defining a spatial distribution (T) of a set-point temperature (T) within the cell in operation, by measuring a spatial distribution (D) of a first thermal quantity (D) representative of local removal of heat, by estimating a spatial distribution (Q) of a second thermal quantity (Q) representative of local production of heat (Q), and by determining the spatial distribution (k) depending on the estimated spatial distribution (Q), and the method further including producing the electrochemical cell based on the reference electrochemical cell and in which the parameter of interest (k) has the determined spatial distribution (k).

Determination of a spatial distribution of the permeability of an electrochemical - cell electrode

A method is provided for determining a spatial distribution (Wc) of a parameter of interest (Wc) representative of a catalytic activity of an active layer of at least one electrode among two electrodes of an electrochemical cell, including steps of providing the cell, within which the parameter of interest (Wc) has an initial spatial distribution (Wc) of one or more values of catalytic load; defining a spatial distribution (T) of a set-point temperature (T) within the cell in operation; measuring a spatial distribution (D) of a first thermal quantity (D) within the cell in operation; estimating a spatial distribution (Wc) of a second thermal quantity (Q) within the cell in operation, depending on the spatial distribution (T) and on the measured spatial distribution (D); and determining the spatial distribution (Wc) of the parameter of interest (Wc) depending on the estimated spatial distribution (Q) of the second thermal quantity (Q).

Determination of a spatial distribution of the catalytic activity of an electrochemical-cell electrode

A method for determining a spatial distribution (Rc) of a parameter of interest (Rc) representative of a contact resistance between a bipolar plate and an adjacent electrode of an electrochemical cell, in which a spatial distribution (Rc) of the parameter of interest (Rc) is determined depending on the spatial distribution (Q) of a second thermal quantity (Q) estimated beforehand from the spatial distribution (T) of a set-point temperature (Tc) and from the spatial distribution (D) of a first thermal quantity (D).

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Grenoble, France

Christophe Robin