Abstract: The present invention relates to a composite material (10) comprising a layer of electrically conductive material (12) being provided on both sides with a lightweight fibrous veil (14), each veil (14) being coated on its surface remote from the electrically conductive material layer (12) with a curable thermosetting resin matrix material (16).

Abstract: A method is provided for determining a spatial distribution (Rx,yf) of a parameter of interest (R) representative of the electrical power production of an electrochemical cell, including steps of determining the spatial distribution (Rx,yf) the parameter of interest (R) depending on a spatial distribution (Qx,ye) of a second thermal quantity (Qe) estimated beforehand from a spatial distribution (Tx,yc) of a set-point temperature (Tc) and from a spatial distribution (Dx,yr) of a first thermal quantity (Dr).

Abstract: A method for producing an electrochemical cell is provided, the method including determining a spatial distribution (kx,yf) 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 (Tx,yc) of a set-point temperature (Tc) within the cell in operation, by measuring a spatial distribution (Dx,yr) of a first thermal quantity (Dr) representative of local removal of heat, by estimating a spatial distribution (Qx,ye) of a second thermal quantity (Qe) representative of local production of heat (Qe), and by determining the spatial distribution (kx/yf) depending on the estimated spatial distribution (Qx,ye), 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 (kx,yf).

Abstract: The present invention relates to a printing or spray deposition method for preparing a supported flexible electrode and to a method for manufacturing a lithium-ion battery.

Abstract: A method is provided for determining a spatial distribution (Wcx,yf) 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 (Wcx,yi) of one or more values of catalytic load; defining a spatial distribution (Tx,yc) of a set-point temperature (Tc) within the cell in operation; measuring a spatial distribution (Dx,yr) of a first thermal quantity (Dr) within the cell in operation; estimating a spatial distribution (Wcx,ye) of a second thermal quantity (Qe) within the cell in operation, depending on the spatial distribution (Tx,yc) and on the measured spatial distribution (Dx,yr); and determining the spatial distribution (Wcx,yf) of the parameter of interest (Wc) depending on the estimated spatial distribution (Qx,ye) of the second thermal quantity (Qe).

Abstract: The present invention relates to a composite material (10) comprising a layer of electrically conductive material (12) being provided on both sides with a lightweight fibrous veil (14), each veil (14) being coated on its surface remote from the electrically conductive material layer (12) with a curable thermosetting resin matrix material (16).

Abstract: A method for preparing self-supporting flexible electrodes is provided using refined cellulose fibers as binder. The negative or positive self-supporting flexible electrode is obtained by such method. A Li-ion battery is also provided in which at least one electrode is a self-supporting flexible electrode.

Abstract: The invention relates to a method for determining a spatial distribution (kx,yf) of a parameter of interest (k) representative of a permeability of a diffusion layer of at least one electrode of an electrochemical cell, comprising steps in which a spatial distribution (kx,yf) of the parameter of interest (k) is determined depending on the spatial distribution (Qx,ye) of a second thermal quantity (Qe) estimated beforehand from the spatial distribution (Tx,yc) of a set-point temperature (Tc) and from the spatial distribution (Dx,yr) of a first thermal quantity (Dr).

Abstract: The invention relates to a method for determining a spatial distribution (Rx,yf) of a parameter of interest (R) representative of the electrical power production of an electrochemical cell, comprising steps in which a spatial distribution (Rx,yf) of the parameter of interest (R) is determined depending on the spatial distribution (Qx,ye) of a second thermal quantity (Qe) estimated beforehand from the spatial distribution (Tx,yc) of a set-point temperature (Tc) and from the spatial distribution (Dx,yr) of a first thermal quantity (Dr).

Abstract: The invention relates to a method for determining a spatial distribution (Wcx,yi) of a parameter of interest (Wc) representative of a catalytic activity of an active layer of at least one electrode of an electrochemical cell, comprising steps in which a spatial distribution (Wcx,yi) of the parameter of interest (Wc) is determined depending on the spatial distribution (Qx,ye) of a second thermal quantity (Qe) estimated beforehand from the spatial distribution (Tx,yc) of a set-point temperature (Tc) and from the spatial distribution (Dx,yr) of a first thermal quantity (Dr).

Abstract: The invention relates to a fuel cell comprising: a membrane/electrodes assembly (111, 112, 113) comprising a cathode attached to a membrane; a conductive plate (102) defining a flow channel between an air inlet and a water outlet; and a gaseous diffusion layer subjected to compression between the cathode (112) and the conductive plate (102), and comprising first and second parts (24, 25) which are joined together, have different compositions and are of the same thickness beneath said compression, the first part extending by between 15 and 50% of the length of the channel from the air inlet and the second part extending by between 50 and 85% of the length of the channel from the water outlet.

Abstract: The present invention relates to a printing or spray deposition method for preparing a supported flexible electrode and to a method for manufacturing a lithium-ion battery.

Abstract: The present invention relates to a method for preparing self-supporting flexible electrodes by a method that implements refined cellulose fibres as binder. It relates also to the negative or positive self-supporting flexible electrode obtained by such a method and an Li-ion battery in which at least one electrode is a self-supporting flexible electrode.