Abstract: Disclosed is a method for electrical supply of an apparatus by a system including an intermittent electrical source, electrical storage unit, a fuel cell, and an electrochemical unit for generating the fuel. The method includes steps of: determining a power balance of the system depending on the power consumed by the apparatus and supplied by the intermittent electrical source; receiving data representative of the stability of the power balance during a safety period; controlling the fuel cell and the electrochemical unit: to activate the electrochemical unit if the power balance is greater than a first threshold and the data are not characteristic of a subsequent decrease in the power balance; activating the fuel cell if the power balance is less than a second threshold, which is less than the first threshold, and the data are not characteristic of a subsequent increase in the power balance.

Abstract: Disclosed is a method for electrical supply of an apparatus by a system including an intermittent electrical source, electrical storage unit, a fuel cell, and an electrochemical unit for generating the fuel. The method includes steps of: determining a power balance of the system depending on the power consumed by the apparatus and supplied by the intermittent electrical source; receiving data representative of the stability of the power balance during a safety period; controlling the fuel cell and the electrochemical unit: to activate the electrochemical unit if the power balance is greater than a first threshold and the data are not characteristic of a subsequent decrease in the power balance; activating the fuel cell if the power balance is less than a second threshold, which is less than the first threshold, and the data are not characteristic of a subsequent increase in the power balance.

Abstract: The invention relates to a method for producing carbon electrodes by deposition on a substrate, to produce a fuel cell. The method comprises the steps of alternately and/or simultaneously depositing porous carbon and a catalyst onto the substrate by plasma spaying in a vacuum chamber. The catalyst is used to accelerate at least one of the chemical reactions that takes place in the fuel cell. The thickness of each layer of porous carbon is chosen so that the catalyst deposited on this carbon layer is distributed essentially throughout this layer, thereby by providing a layer of catalyzed carbon. The total thickness of catalyzed carbon in the electrode is less than 2 micrometers, and preferably equal to no more than 1 micrometer.

Abstract: The present disclosure relates to a method for making a thin layer solid oxide fuel cell including at least an anode, an electrolyte and a cathode including at least the following steps of: magnetron sputtering deposition of an electrolyte on a first electrode, and of magnetron sputtering deposition of a second electrode on the electrolyte, at least one catalyst is incorporated into the first electrode and/or the second electrode during the deposition thereof.

Abstract: The invention relates to a method for producing a thin-film fuel cell. The inventive method comprises plasma spraying a first porous carbon electrode on a gas-diffusing substrate in a vacuum chamber, wherein the first porous carbon electrode comprises a catalyst used to accelerate at least one chemical reaction that takes place in the fuel cell; depositing ion-conducting material on the first porous carbon electrode to provide a membrane having a thickness of less than 20 micrometers; and plasma spraying a second porous carbon electrode on the membrane in the vacuum chamber, wherein the second electrode comprises a catalyst.

Abstract: The invention relates to a method for producing carbon electrodes by deposition on a substrate, to produce a fuel cell. The method comprises the steps of alternately and/or simultaneously depositing porous carbon and a catalyst onto the substrate by plasma spaying in a vacuum chamber. The catalyst is used to accelerate at least one of the chemical reactions that takes place in the fuel cell. The thickness of each layer of porous carbon is chosen so that the catalyst deposited on this carbon layer is distributed essentially throughout this layer, thereby by providing a layer of catalyzed carbon. The total thickness of catalyzed carbon in the electrode is less than 2 micrometers, and preferably equal to no more than 1 micrometer.