A heat generating device includes: a sealed container; a tubular body provided in a hollow portion of the sealed container; a heat generating element provided on an outer surface of the tubular body and configured to generate heat by occluding and discharging hydrogen supplied to the hollow portion; and a flow path formed by an inner surface of the tubular body and through which configured to allow a fluid that exchanges heat with the heat generating element to flow. The heat generating element includes a base made of a hydrogen storage metal, and a multilayer film provided on the base. The multilayer film has a first layer made of a hydrogen storage metal and having a thickness of less than 1000 nm, and a second layer made of a hydrogen storage metal, which is different from that of the first layer, and having a thickness of less than 1000 nm.

A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are also provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.

The invention relates to a hydrogen compressor with metal hydride comprising: a pressure chamber, comprising an inner space, defined by a first inner surface; a shell with a thickness E, the shell comprising a first outer surface facing the first inner surface, the shell comprising an insulating material with first thermal conductivity; and a hydrogen storage element, contained in the shell, comprising a storage material suitable for storing or releasing hydrogen as a function of a temperature that is imposed on same, and having a second thermal conductivity higher than the first thermal conductivity.

A hydrogen compression system includes an inner container made of a non-magnetic element and having a hydrogen inlet/outlet portion through which hydrogen flows in or out of the inner container, a metal hydride material accommodated in the inner container, an outer container configured to surround the inner container and having an inlet/outlet port through which hydrogen flows in or out of the outer container, and an induction heating unit disposed between the inner container and the outer container and configured to heat the metal hydride material by induction heating, thereby obtaining an advantageous effect of simplifying a structure and process for heating the metal hydride material and quickly heating the metal hydride material to an accurate temperature.

The present invention relates to a composite material for hydrogen storage based on metal hydrides and to a method of operating a hydrogen storage system based on metal hydrides capable of releasing and absorbing hydrogen. Such hydrogen storage systems based on metal hydrides may be applicable as a fuel source for a fuel cell. The composite material for hydrogen storage comprises a powder or pellets of a hydride and a phase changing material (PCM), wherein the PCM is an encapsulated phase changing material (EPCM) which is homogeneously dispersed within the powder or pellets of the hydride.

The present invention relates to a composite material for hydrogen storage based on metal hydrides and to a method of operating a hydrogen storage system based on metal hydrides capable of releasing and absorbing hydrogen. Such hydrogen storage systems based on metal hydrides may be applicable as a fuel source for a fuel cell. The composite material for hydrogen storage comprises a powder or pellets of a hydride and a phase changing material (PCM), wherein the PCM is an encapsulated phase changing material (EPCM) which is homogeneously dispersed within the powder or pellets of the hydride.

A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.

A storage system for storing solid hydrogen includes: a plurality of storages including two or more types of solid hydrogen storage materials having different magnetic intensities; a storage container configured to accommodate the storages; and a coil disposed inside the storage container and configured to apply a variable magnetic field to the storages accommodated in the storage container.

A hydrogen storage device is described. The hydrogen storage device comprises a heater/cooler module (6) and a pressure containment vessel (1) defining an interior volume and having within it: a thermally conducting network (4) having a face in thermal contact with the heater/cooler module (6), the shape of the thermally conducting network (4) being a fractal geometry in two or three dimensions; optionally a metal foam in thermal contact with the thermally conducting network (4); and a hydrogen storage material (5) in thermal contact with the thermally conducting network (4).

The present invention relates to a composite material for hydrogen storage based on metal hydrides and to a method of operating a hydrogen storage system based on metal hydrides capable of releasing and absorbing hydrogen. Such hydrogen storage systems based on metal hydrides may be applicable as a fuel source for a fuel cell. The composite material for hydrogen storage comprises a powder or pellets of a hydride and a phase changing material (PCM), wherein the PCM is an encapsulated phase changing material (EPCM) which is homogeneously dispersed within the powder or pellets of the hydride.