Abstract: A solution vessel 4 freely changeable in volume is provided inside a reaction chamber 2. As a reactant solution 11 stored in the solution vessel 4 is supplied to a workpiece 3 placed in the reaction chamber 2, the volume of the solution vessel 4 is decreased, and the capacity of the reaction chamber 2 is increased. Thus, a region where hydrogen is generated is increased within a small space.

Abstract: A power supply apparatus comprises a combined power source composed of a plurality of power cells configured electrically independently, a switch for arbitrarily connecting each of the power cells by selectively connecting terminals of the power cells through switching elements, a voltage detector for respectively detecting differences in potentials between the terminals of the power cells, a voltage regulator for stabilizing a voltage supplied to a load, a current detector for detecting a load current supplied to the load, and a controller for controlling ON-OFF states of the switching elements by controlling the switch by a control signal generated based on voltage signals on the voltages detected by the voltage detector, a power consumption of the load, and an output power of the combined power source.

Abstract: After hydrogen fed from the side part of the bottom plate 13 along the face direction through the fluid supply plate 15 is dispersed in the flow space 14 and is then dispersed in the paths 26 in the block group 25, hydrogen is transferred into the small openings for uniformly feeding hydrogen to each cell unit.

Abstract: After hydrogen fed from introduction hole 22 is dispersed in a first space 15 as a first buffer part, the hydrogen is further dispersed in a first recess part 28 and a second recess part 30 as a second buffer part, which is then uniformly dispersed in individual paths 26 between block groups 25 to make the volume of hydrogen flowing in the paths 26 uniform, and is then transferred at a sufficient feed pressure into small openings 24 through the second recess part 29 for uniformly feeding hydrogen to each cell unit.

Abstract: Hydrogen supplied from an introduction port (22) is diffused in a first space (15), which is a first buffer section. Thereafter, it is sent to a first space (15), which is a second buffer section, through a communication port (23), and is radially diffused in the first space (15) so that the flow rate is made uniform. Then, it is sent to small-openings (24) formed on a same circumference (S), so that the hydrogen can be supplied to each of the cell units evenly.

Abstract: Hydrogen supplied from an introduction port 22 is diffused in a first space 15, a first buffer section, is then further diffused in a first recessed section 30, a second buffer section, and is uniformly dispersed to channels 26 of a block group 25. Thus, the amounts of the hydrogen flowing through the channels 26 are uniformized, and the hydrogen is sent to fine openings 24, and uniformly supplied to each cell.

Abstract: A hydrogen production apparatus 1 is constructed in which when work 3 is close to a supply hole 7, a strut 22 is pushed to open the supply hole 7, and when erosion of the work 3 progresses to cause the strut 22 to protrude, the supply hole 7 is closed with a seal member 24, so that products do not stay on the work 3, a reaction solution 12 is not fed to portions other than the work 3, and even if the attitude of the apparatus is changed, a hydrogen production reaction can be controlled appropriately.

Abstract: An electrochemical cell is provided which facilitates the reduction in size and thickness. An electrochemical cell is configured of a base member made of a resin material and formed in a box shape, a conductive terminal made of a metallic material and fixed and penetrated from the inside to the outside of the base member, a frame member made of a metallic material and fixed to the base member, and a cover member welded with the frame member.

Abstract: An electrochemical cell has a container housing a separator and a pair of electrodes impregnated with an electrolyte. The container has a base member having a bottom part and a side part disposed on a top surface of the bottom part along an outer rim of the bottom part. A metallic conductive terminal has first and second opposite surfaces penetrating through inner and outer sides of the base member. The first surface of the conductive terminal is disposed on the top surface of the bottom part of the base member. The second surface of the conductive terminal is disposed in contact with one of the pair of the electrodes. A metallic frame member has first and second opposite surfaces, with the first surface being joined to an entire rim of a top surface of the side part of the base member. A metallic cover member is joined to an entire rim of the second surface of the frame member.

Abstract: This invention provides a fuel battery comprising a solid polymer electrolyte membrane, an anode-side catalyst body and a cathode-side catalyst body disposed respectively on both sides of the solid polymer electrolyte membrane, and a fuel guide part in which the anode-side catalyst body is disposed opposite to the anode-side catalyst body on the opposite side where the anode-side catalyst body faces the solid polymer electrolyte membrane and which guides a fuel which has been externally supplied toward the center of the face of the anode-side catalyst body.

Abstract: Hydrogen generation materials are a complex hydride which generates hydrogen upon hydrolysis, and an aqueous solution comprising water for causing the hydrolysis, and an accelerator dissolved therein for accelerating a hydrogen generation reaction. A method of hydrogen generation by a hydrogen generator comprises a first step S1 of detecting that the internal pressure of a reactor is lower than a reference pressure, and supplying the aqueous accelerator solution to the reactor; a second step S2 of dissolving the complex hydride in the aqueous accelerator solution to cause a hydrogen generation reaction; and a third step S3 of detecting that the internal pressure of the reactor is higher than the reference pressure, and stopping the supply of the aqueous accelerator solution, and repeats the flow from the first step S1 to the third step S3.

Abstract: In a fuel cell power source system comprising a fuel cell, a fuel supplier for supplying a fuel to the fuel cell, an electricity storing member capable of charging and discharging an energy, and a control circuit for controlling outputs of the fuel cell and the electricity storing member and the fuel supplier for supplying a power to an external load, there are provided a method of operating the fuel cell power source system and a fuel cell system promoting safety of the fuel cell system and reducing a deterioration in the fuel cell by removing the fuel remaining at inside of the fuel cell after stopping the fuel supplier. At an initial stage of supplying the power to the external load and inside of the fuel cell system, the power is supplied from the electricity storing member, and the electricity storing member is charged by using an output outputted from the fuel cell by generating the power by the fuel cell by using the fuel remaining at inside of the fuel cell system after stopping the external load.

Abstract: To provide a small-sized fuel cell system capable of providing a mode having a simple constitution preventing power generation of a fuel cell in an overload state, preventing a deterioration in the fuel cell system and providing a stable output from the fuel cell in the fuel cell system constituting a power source by the fuel cell. Overload states of all of single cells constituting a fuel cell are detected and an output of the fuel cell is controlled such that when the overload state is detected, the output of the fuel cell is cut or a cell in the overload state is recovered to a normal power generating state.

Abstract: An electrochemical cell is provided which facilitates the reduction in size and thickness. An electrochemical cell is configured of a base member made of a resin material and formed in a box shape, a conductive terminal made of a metallic material and fixed and penetrated from the inside to the outside of the base member, a frame member made of a metallic material and fixed to the base member, and a cover member welded with the frame member.