Abstract: A distributed control method for a fuel cell system is disclosed. An auxiliary power source first provides power for a main control unit and a power management unit during the fuel cell system is turned on. The main control unit repeatedly receives status data of fuel cells from the power management unit or actively inquires of the power management unit to determine whether the fuel cell system is abnormal, and real-time regulates the system to maintain it in an optimal condition. The power management unit detects the status of the fuel cell using sensors, produces a corresponding status datum, and then feeds back the status datum to the main control unit. While the fuel cell system is turned off, fuels residual in flow channels of a fuel cell and un-drained products produced by the electrochemical reaction of a fuel cell are cleaned up, and the last status of the fuel cell before shut off is stored.

Abstract: The present invention is an anode flow field board for fuel cell, which comprises a substrate, and a shunt portion configured on the substrate, an inlet channel structure, at least one slot body, an outlet channel structure, and an outlet hole; wherein, the shunt portion is formed by digging a small area of the substrate as a hollow area; the inlet channel structure is connected between the shunt portion and these slot bodies, and the configured positions for the arrangement of these slot bodies are associated with these configured positions of anodes for each membrane electrode assembly; the outlet channel structure is connected between these slot bodies and the outlet hole; and, the outlet hole is connected to the outlet channel structure, and the outlet hole is formed by digging a small area of the substrate as a hollow area.

Abstract: The present invention is a cathode flow field board for fuel cell, which comprises a substrate, an inlet channel structure configured on the substrate, at least one slot body, an outlet channel structure, a first hollow area, and a second hollow area; wherein, the inlet channel structure is connected between these slot bodies, and the inlet area of the inlet channel structure is a groove structure, and the area of the inlet channel structure connected to these slot bodies employs a hollow structure. The configured positions for the arrangement of these slot bodies are associated with these configured positions of cathodes for each membrane electrode assembly; the outlet channel structure is connected to these slot bodies; and, the first hollow area and the second hollow area are configured associating with the anode flow field board.

Abstract: The present invention discloses an assembly method for assembling plate-type membrane electrode assembly layer and the structure thereof; wherein, the assembly method includes the following steps: providing at least one membrane electrode assembly (MEA); providing a frame, in which the frame is provided with at least one first hole, and the opening area of the first hole is slightly smaller than the area of the MEA; providing a bonding sheet, in which the bonding sheet is provided with at least one second hole, and the opening area of the second hole is slightly smaller than the area of the MEA, and each second hole is corresponding to each first hole respectively; placing these MEAs into these first holes on the frame, and covering these MEAs with the bonding sheet; and, pressing the pressing areas on the bonding sheet surrounding these second holes, so the bonding sheet, these MEAs, and the frame stacked sequentially could be joined as a plate-type MEA layer, in which these pressing areas are corresponding

Abstract: The present invention is to provide a measurement apparatus of measuring fuel capacity used in fuel cell system; the measurement apparatus comprises a sensor device, a resistor, an A/D converter and a controller. The sensor device comprises a first electrode and a second electrode and accommodated in fuel storage and/or fuel flow layer to detect the fuel capacity of the anode, the second electrode connects to a low level voltage, one terminal of the resistor connects to the first electrode, the other terminal electrically connects to a high level voltage. The input terminal of the A/D converter connects to the first electrode and the first terminal of the resistor to input a measuring analog voltage, and also converts into a measuring digital voltage, the controller connects to the A/D converter to input measuring digital voltage and converts into the liquid level of the anode fuel in the fuel storage and/or fuel flow layer.

Abstract: A fuel flow board for a fuel cell includes a body, at least fuel supply portion and at least a dissipating component. The fuel supply portions are disposed on the surface of the body. The dissipating component is disposed within the body. A part of the dissipating component protrudes from the body. The dissipating component is averagely deployed on the whole area of the fuel supply portion.

Abstract: A modular fuel cell is disclosed, which can be assembled with various modular components including a fuel cell module, a control module and a fuel supply module, if desired. The fuel cell module is fabricated by a printed circuit board (PCB) process, and is used to perform an electrochemical reaction and generate power. The control module comprises a PCB and an electric circuit disposed on the PCB. The electric circuit comprises at least an electrical device. The fuel supply module comprises a fuel tank, and at least a pump and/or at least a valve. The pump and/or the valve are controlled by the control module, and at least a pump and/or at least a valve are connected to the fuel cell module.

Abstract: The present invention provides a liquid level detection device for detecting the liquid level height of liquid fuel in a chamber, which has an inner space connected with the chamber. The liquid level detection device comprises: a heater, which is configured in the inner space of the liquid level detection device, and is used to heat the liquid fuel in the inner space; at least one temperature sensors, which are configured in the inner space of the liquid level detection device, and is used to measure the temperature of the liquid fuel in the inner space; and, a liquid level calculation device, which receives the temperature signals of the liquid fuel measured by these temperature sensors, and calculates the temperature variation rate of the liquid fuel, and converts into the liquid level height of the liquid fuel in the chamber according to the temperature variation rate.

Abstract: A fuel cell device adapted to a slim-type CD-ROM drive is disclosed. A fuel cell module comprises at least a fuel cell board fabricated by a printed circuit board process. A circuit unit comprises a circuit board and at least a circuit component. The circuit components are disposed on the circuit board and are electrically connected to the fuel cell module. A connecting interface used as a output end for outputting power of the fuel cell module and connecting with an electrical device. The fuel cell module, the circuit unit and the connecting interface constitute an exterior adapted to the exterior of the slim-type CD-ROM drive.

Abstract: A method of manufacturing an anticorrosive bipolar fuel cell board is disclosed and comprises the following steps. Step (a) is to provide a first printed circuit substrate with at least a first predetermined region and etch metal on the regions. Step is to provide a second printed circuit substrate with at least a second predetermined region and etch metal on the regions. Step (c) is to respectively cover an anticorrosive conductive material onto the first predetermined regions of the first printed circuit substrate after step (a) such that an anode current collection board is fabricated. Step (d) is to respectively cover an anticorrosive conductive material onto the second predetermined region of the second printed circuit substrate after step (b) such that a cathode current collection board is fabricated.

Abstract: A method of forming serial or parallel fuel cell units is provided and comprises the following steps. A step is to provide a cathode substrate, an anode substrate and at least a membrane electrode assembly (MEA). A step is to form at least a cathode current collection circuitry and at least a first contact on the same surface of the cathode substrate, wherein the cathode current collection circuitry is disposed corresponding to a cathode of the MEA, and the first contact electrically is connected to the cathode current collection circuitry, thereby a cathode current collection plate is fabricated. A step is to form at least an anode current collection circuitry and at least a second contact on the same surface of the anode substrate, wherein the anode current collection circuitry is disposed corresponding to an anode of the MEA, and the second contact is electrically connected to the anode current collection circuit.

Abstract: A flat panel direct methanol fuel cell (DMFC) includes an integrated cathode electrode sheet; a membrane electrode assembly (MEA) unit; an intermediate bonding layer; an integrated anode electrode sheet; and a fuel container. The fabrication of the integrated cathode/anode electrode sheets is compatible with printed circuit board (PCB) processes.

Abstract: The present invention is a fuel cell device, which at least comprises: at least one membrane electrode assembly, in which the membrane electrode assembly at least comprises: an anode electrode, a proton exchange membrane, and a cathode electrode; and, at least one double-sided flow board, which is configured on one side of the membrane electrode assembly, and the double-sided flow board employs a wave structure.

Abstract: A concentration detector is disclosed, which is adapted to sense the concentration of a liquid fuel and includes an internal compartment for containing the liquid fuel. The concentration detector comprises a heater, one or more temperature sensors and a concentration calculator. The heater is disposed in the internal compartment of the concentration detector to warm up the liquid fuel. The temperature sensors are disposed in the internal compartment of the concentration detector to measure the temperature of the liquid fuel. The concentration calculator is used to receive the temperature of the liquid fuel measured by the temperature sensors, to calculate a rate of change in the temperature of the liquid fuel, and then to compute a corresponding concentration of the liquid fuel based on the rate of change in the temperature of the liquid fuel.

Abstract: A composite flow board for a fuel cell is disclosed, which includes a first substrate, a second substrate and at least one third substrate. The first substrate is made of plasticized material in the form of a plate. The first substrate includes one or more concave portions spaced apart from one another. The concave portions are formed on a surface of the first substrate. The second substrate is made of well-adhesive material in the form of a framework. The second substrate includes four frames and a hollow portion. The space inside the hollow portion is used to contain the first substrate, and the first substrate is connected with the four frames. The third substrate is made of metal in the form of a thin layer. The third substrate is shaped to the concave portions, and is attached to the concave portions.

Abstract: A concentration detector is disclosed, which is adapted to detect a concentration of a liquid fuel in a container. The concentration detector includes a rotating means positioned underneath a level of a liquid fuel and rotatable at an angle ? on a X-Y plane. The rotating means includes at least three floating objects connected with each other. Each floating object has a specific gravity less than a specific gravity of the liquid fuel ?. The floating objects are balanced according to a torque equation, F(?,?)=0, such that the rotating means is still under the level of the liquid fuel. While a concentration of the liquid fuel is changed and the angle ? of the rotating means is detected, the specific gravity of the liquid fuel ? is obtained from the torque equation, F(?,?)=0, and thereby computing the concentration of the liquid fuel.

Abstract: A flat panel DMFC (direct methanol fuel cell) includes an integrated cathode electrode sheet; a membrane electrode assembly (MBA) unit; an intermediate bonding layer; an integrated anode electrode sheet; and a fuel container. The integrated cathode/anode electrode sheets are manufactured by using printed circuit board (PCB) compatible processes.

Abstract: The present invention is a double-electrode plate with electrical circuitry laminate and comprises a first electrode layer, a second electrode layer and a electrical circuitry layer. The first electrode layer comprises a first substrate and a first metal foil covering upon the first substrate surface. The second electrode layer comprises a second substrate and a second metal foil covering upon the second substrate surface. The electrical circuitry layer is laminated between the first electrode layer and the second electrode layer. The double-electrode plate is laminated to form a compact structure in sequence from the top to bottom of the first metal foil, the first substrate, the electrical circuitry layer, the second substrate and the second metal foil.

Abstract: A two-sided fuel flow board structure is disclosed, which includes a plate, at least one top concave portion, at least one bottom concave potion, at least one injection flow channel, and at least one exhaust flow channel. The top and the bottom concave portions separately formed on an upper surface and a lower surface of the plate, and each of them is disposed corresponding to each membrane electrode assembly of a fuel cell board. The injection flow channels are formed on the upper surface and the lower surface of the plate, and connected to each of the top and the bottom concave portions, respectively. The exhaust flow channels are formed on the upper surface and the lower surface of the plate, and separately connected to each of the top and the bottom concave portions.

Abstract: The present invention is a fuel cell apparatus of feedback module which comprises at least one fuel cell unit and energy management unit.