The fuel cell includes a power generation unit, a plurality of storage containers that are detachable and house hydrogen absorbing alloy, a heat medium passage through which a heat medium flows, and a temperature control unit for heating the storage containers by controlling the temperature of the heat medium and causing the heat medium to flow. The temperature control unit can carry out a first temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a first temperature, and a second temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a second temperature. The temperature control unit determines whether the second temperature mode is to be carried out or not based on the pressure or the temperature of an attached storage container when a new storage container is attached.

In aspects of the disclosure, a fuel cartridge wherein the fuel is in a powdered form is admixed with inert materials such as alumina or other ceramics to improve thermal conductivity. Said cartridge having fuel zones, heating zones, and controllers to selectively heat fuel zones and thereby generate hydrogen via decomposition of fuel is disclosed.

A device includes a case having a surface with a perforation and a first cavity containing a gas generating fuel. A first membrane is supported by the case inside the first cavity. The first membrane has an impermeable valve plate positioned proximate the perforation. The first membrane is water vapor permeable and gas impermeable and flexes responsive to a difference in pressure between the cavity and outside the cavity to selectively allow water vapor to pass through the perforation to the fuel as a function of the difference in pressure. A second membrane that is water vapor permeable gas impermeable is coupled between an outside of the case exposed to ambient atmospheric gas and the valve plate creating a reference pressure second cavity configured to reduce the effects of ambient pressure transients on the difference in pressure. A fuel cell membrane may be included in the device to produce electricity.

Disclosed is a hydrogen generator with a door that can be opened to replace a fuel unit and closed to seal the door. A lock responds directly to pressure within the chamber to prevent opening when the pressure exceeds a threshold value. The lock includes a locking member with a lug that engages a retainer to seal the door when the door is locked and is disengaged from the retainer when the door is unlocked. An opening mechanism moves the locking member to lock and unlock the door. A movable key is engaged with the opening mechanism and the locking member when the pressure in the chamber is at or below the threshold value and disengaged from one of the opening mechanism and the locking member by an actuator (e.g., a flexible diaphragm) so the door cannot be unlocked and opened when the pressure is above the threshold value.

A saddle-ride type vehicle includes an air-cooled fuel cell unit that is mounted on a body frame behind a head pipe and in front of a pivot frame and uses taken-in outside air for supplying oxygen and cooling a unit. The fuel cell unit includes an outside air intake open forward below the head pipe and an exhaust port open rearward above a pivot. A seat frame has a monocoque structure also having a configuration of an exhaust duct for guiding exhaust gas from the fuel cell unit to a back of an occupant's seat. Accordingly, in the saddle-ride type vehicle, it is possible to realize more efficient ventilation in utilizing a fuel cell.

A fuel cell oxygen delivery system, method, and apparatus for full-scale clean fuel electric-powered vehicle having a fuel cell module including a plurality of fuel cells working together that augments gaseous oxygen from ambient air and gaseous hydrogen extracted from liquid hydrogen by pressure change or heat exchangers, with fuel cells containing electrical circuits configured to collect electrons from the plurality of hydrogen fuel cells to supply voltage and current to motor controllers commanded by control units configured to control an amount and distribution of electrical voltage and torque or current for each of one or more motor and propeller or rotor assembly, wherein electrons returning from the electrical circuits combine with both oxygen derived from air and onboard oxygen from the delivery system to form oxygen ions, then protons combine with oxygen ions to form H.sub.2O molecules and heat.

A wrist-mountable portable electronic device comprises an electronic device which is incorporated into a housing and a strap, coupled to the housing and configured to retain the wrist-mountable portable electronic device on the wrist of a user. The strap incorporates at least one fuel cell coupled to provide power to the portable electronic device. The portable electronic device may be a watch or a personal communication device or a personal health and/or activity monitor. The strap may further include an integral fuel source coupled to the at least one fuel cell, and the fuel source may be a replaceable cartridge. High power devices to be worn on the wrist may therefore be powered for extended periods of time.

A system comprising: (a) a liquid natural gas compression module having a compressed liquid natural gas conduit; (b) an active magnetic regenerative refrigerator H.sub.2 liquefier module; (c) at least one H.sub.2 gas source fluidly coupled to the active magnetic regenerative refrigerator H.sub.2 liquefier module via an H.sub.2 gas conduit; and (d) a heat exchanger that receives the compressed liquid natural gas conduit and the H.sub.2 gas conduit.

This invention relates to a cartridge structure (100, 200, 300) designed for generation of hydrogen gas by means of generating hydrogen using hydride solutions (sodium hydride, lithium borohydride, potassium borohydride, ammonium borane, etc.) in presence of a catalyser. The objective of this invention is to provide a cartridge structure (100, 200, 300) designed for generation of hydrogen gas by means of generating hydrogen using continuously fed hydride solutions in presence of a catalyser.

A fuel cell-based power system comprises a fuel cell configured for continuously receiving a first reactant and a second reactant to produce chemical reactions that generate electrical power, water, and heat, a coolant subsystem configured for circulating a primary coolant in association with the fuel cell, thereby absorbing the generated heat, a tank configured for storing a reactant, and a reactant distribution subsystem configured for conveying the reactant from the tank to an independent system, the fuel cell as the first reactant, and the coolant subsystem as a secondary coolant to remove the absorbed heat from the primary coolant and/or a water accumulator. The secondary coolant may be conveyed to a gas thruster as a gas after the absorbed heat has been removed from the secondary coolant. The reactant may be boil off of a cryogenic liquid or vapor or gas transformed from a cryogenic liquid via a heater.