Abstract: A fuel cell comprises at least two current collectors, an electrically insulating separator element and solid electrolyte. Each current collector comprises at least one transverse passage passing through it from a first surface to a second surface and the separator element comprising opposite first and second faces is arranged between the current collectors. A plurality of transverse channels pass through the separator element from the first face to the second face and the ionically conducting solid electrolyte occupies the volume bounded by the channels of the separator element and by the passages of the current collectors. The separator element is formed by a thermoplastic polymer material and hard particles are arranged in the transverse channels.

Abstract: Water produced in a fuel cell is managed and/or regulated by an assembly comprising at least one hydrophobic element and a hydrophilic element. The hydrophilic element is in contact with at least one first area of an outer surface of the cathode. The hydrophobic element covers the whole of a face of the hydrophilic element opposite the outer surface of the cathode and comprises at least one through opening releasing an area of said face of the hydrophilic element.

Abstract: A device for generating hydrogen by hydrolysis of a hydride comprising a reactor containing the hydride in solid form, in the divided state or not, and comprising at least one orifice for removing the hydrogen produced; means for releasing the water required for the hydrolysis reaction; and at least one envelope suitable for isolating the hydride from the water required for the hydrolysis reaction, the envelope being made from a consumable material. According to the present invention, the envelope is suitable for contacting the water with the hydride in a site capable of serving as the seat of the hydrolysis reaction and of moving in the reactor as the material constituting the envelope is consumed by the hydrolysis reaction products.

Abstract: A fuel cell comprises at least two current collectors, an electrically insulating separator element and solid electrolyte. Each current collector comprises at least one transverse passage passing through it from a first surface to a second surface and the separator element comprising opposite first and second faces is arranged between the current collectors. A plurality of transverse channels pass through the separator element from the first face to the second face and the ionically conducting solid electrolyte occupies the volume bounded by the channels of the separator element and by the passages of the current collectors. The separator element is formed by a thermoplastic polymer material and hard particles are arranged in the transverse channels.

Abstract: Water produced in a fuel cell is managed and/or regulated by an assembly comprising at least one hydrophobic element and a hydrophilic element. The hydrophilic element is in contact with at least one first area of an outer surface of the cathode. The hydrophobic element covers the whole of a face of the hydrophilic element opposite the outer surface of the cathode and comprises at least one through opening releasing an area of said face of the hydrophilic element.

Abstract: A device for generating hydrogen by hydrolysis of a hydride comprising a reactor containing the hydride in solid form, in the divided state or not, and comprising at least one orifice for removing the hydrogen produced; means for releasing the water required for the hydrolysis reaction; and at least one envelope suitable for isolating the hydride from the water required for the hydrolysis reaction, the envelope being made from a consumable material. According to the present invention, the envelope is suitable for contacting the water with the hydride in a site capable of serving as the seat of the hydrolysis reaction and of moving in the reactor as the material constituting the envelope is consumed by the hydrolysis reaction products.