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: A flat panel direct methanol fuel cell (DMFC) includes an integrated cathode electrode plate, a set of membrane electrode assemblies, an intermediate bonding layer, an integrated anode electrode plate, and a fuel container base. The integrated cathode/anode electrode plates are conducive to mass production, and are manufactured by using PCB compatible processes.

Abstract: A structure of a fuel cell stack is disclosed in the present invention, comprising: a first cathode plate; a first fuel cell module; an anode channel plate; a second fuel cell module; and a second cathode plate stacked from top to bottom. Each of the fuel cell modules respectively includes: a cathode collector sheet; at least more than one membrane electrode assembly; an adhesive strip having at least one receiving space for respectively receiving the membrane electrode assemblies; a positioning plate having at least more than one receiving space; at least more than one collector sheet being respectively disposed in the receiving space of the positioning plate.

Abstract: A fuel cell device with a compound power supply is disclosed, which comprises a bipolar fuel cell board and an auxiliary power supply. The bipolar fuel cell board includes at least one fuel cell unit. The auxiliary power supply is disposed on the bipolar fuel cell board and/or on an intermediate substrate sandwiched within the fuel cell device, and is connected to the fuel cell units. Stable power is output due to the combination of power from the fuel cell units and the auxiliary power supply.

Abstract: A concentration detector is adapted to detect the concentration of a liquid fuel in a container. The concentration detector comprises a rotating mechanism positioned underneath the level of the liquid fuel and having a rotational center. A first float having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “M”. The distance between the mass center of the first float and the rotational center is “L”. A second float connected with the first float and having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “r*M”. The distance between the mass center of the second float and the rotational center is “L. The mass center of the second float, the rotational center and the mass center of the first float constitute an included angle of 120°.

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: The present invention provides a fuel cell device, which at least comprises: at least one membrane electrode assembly, at least one fuel flow board, and at least one permeability membrane; wherein, the membrane electrode assembly is provided with an anode electrode, a cathode electrode, and an electrolyte membrane; and, the permeability membrane is configured between the membrane electrode assembly and the fuel flow board, so that the liquid fuel flowing into the fuel flow board could permeate into the permeability membrane, and reducing the density of liquid fuel permeating from the permeability membrane; and, the liquid fuel permeating from the permeability membrane is the liquid fuel with lower density, and is supplied to the anode electrode of the membrane electrode assembly for electrochemical reaction.

Abstract: The present invention discloses a fuel cell device with charger function, which comprises a base, a fuel cell stack, a system fan, a wind cover, a display, a circuit board, a condenser structure, a condensing fan, a mixing tank and a pump. The fuel cell device could not only supply the power to various electronic products for usage and provide with the charger function, but also could charge different electronic products anytime and anywhere to realize the mobile charging idea.

Abstract: A fuel cartridge for a fuel cell comprises a fuel tank, an outlet and an electric unit. The fuel tank includes a sealed space constructed by a hollow case. The outlet is disposed on the case of the fuel tank, and fuel inside the fuel tank flows out from the outlet. The electric unit includes an electrical I/O interface and at least an electric component, and the electrical I/O interface is connected to the electric components.

Abstract: A method of calculating a fuel concentration in a direct methanol fuel cell is disclosed, and comprises the following steps. A direct methanol fuel cell is provided. One or more fuels with different known concentrations are separately provided for the direct methanol fuel cell such that the direct methanol fuel cell performs electrochemical reactions and generates power on the conditions of different known concentrations of fuels. A plurality of physical parameters produced when the direct methanol fuel cell is operated with fuels having known concentrations are respectively measured and recorded, and three of the physical parameters are selected to construct a corresponding three-dimensional measuring space. An interpolation means is generated based on the three-dimensional measuring space.

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 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: The present invention provides a concentration detection device, which is used to detect the concentration of liquid fuel within a container.

Abstract: The present invention provides a fuel cell electric power sensing methodology and the applications thereof.

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 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 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 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: This invention comprises a fuel cell power generation control methodology and the applications thereof, comprising the step of providing a DC converter and a fuel cell and then electrically connecting an input side of the DC converter to an output side of the fuel cell; converting output electricity of the fuel cell of the DC converter into a constant voltage output; the DC converter converts the output current of the fuel cell into a constant voltage (CV); and the DC converter keeps the DC converter input side within the planned limit of a constant current (CC). In other words, the output current of the fuel cell is kept within the planned limit of a constant current, wherein the planned limit of the constant current (CC) is the current limit determined by the quantity of MEAs in the fuel cell and the current limit below the optimum power interval generated by the MEA.

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.