Patent application number | Description | Published |
20090068518 | PASSIVE FUEL CELL SYSTEM - A passive fuel cell system including at least one cell unit, an anode fuel supplying unit, a cathode fuel supplying unit, and a heat-conductive material layer is provided. The cell unit includes a cathode current collector, an anode current collector, and a membrane electrode assembly disposed between them. The anode fuel supplying unit is disposed on a side of the anode current collector, and the cathode fuel supplying unit is disposed on a side of the cathode current collector. The heat-conductive material layer is disposed between the cathode current collector and the cathode fuel supplying unit and/or between the anode current collector and the anode fuel supplying unit. And, a portion of the heat-conductive material layer extends to the outside of a cell system reaction area defined by the cell unit, the anode fuel supplying unit, and the cathode fuel supplying unit along a direction parallel to the cell unit. | 03-12-2009 |
20090134879 | METHOD OF MEASURING CONCENTRATION OF FUEL - A method of measuring concentration of a fuel is provided. First, a fuel cell unit having at least an anode, a cathode, and a membrane electrode assembly (MEA) is provided. Next, a fuel is supplied to the anode, while a reactive gas is supplied to the cathode. Then, the amount of the reactive gas supplied to the cathode is adjusted and the concentration of the fuel is estimated in accordance with the consumption rate of the reactive gas in the fuel cell unit. | 05-28-2009 |
20090136792 | METHOD OF MEASURING CONCENTRATION OF FUEL - A method of measuring concentration of a fuel is provided. First, a fuel cell unit having at least an anode, a cathode, and a membrane electrode assembly (MEA) is provided. Next, a fuel is supplied to the anode, while a reactive gas is supplied to the cathode. Then, the amount of the reactive gas supplied to the cathode is adjusted and the concentration of the fuel is estimated in accordance with the consumption rate of the reactive gas in the fuel cell unit, wherein a method of estimating the concentration of the fuel in accordance with a consumption rate of the reactive gas in the cathode includes measuring a concentration of the reactive gas supplied to the cathode and estimating the concentration of the fuel in accordance with a relationship between the concentration of the reactive gas supplied to the cathode and time. | 05-28-2009 |
20100068584 | FLAT FUEL CELL ASSEMBLY - A flat fuel cell assembly including a MEA, a cathode porous current collector, an anode porous current collector, a gas barrier material layer, a case, and at least one air baffle is provided. The cathode porous current collector and the anode porous current collector are disposed at two opposite sides of the MEA. The gas barrier material layer is disposed at a side of the cathode porous current collector and has at least one opening for exposing a surface of the cathode porous current collector. The case is disposed at a side of the MEA, the gas barrier material layer is disposed between the case and the MEA, and an air channel is located between the gas barrier material layer and the case. Additionally, the air baffle disposed within the air channel. | 03-18-2010 |
20100136697 | APPARATUS AND METHOD OF MEASURING CONCENTRATION OF FUEL - An apparatus of measuring concentration of fuel including a catalyst layer, a diffusion layer, a fuel chamber, a reactive gas chamber, and a sensor is provided. The diffusion layer is connected to the catalyst layer. The fuel chamber is suitable for containing a fuel. The diffusion layer is between the fuel chamber and the catalyst layer. The reactive gas chamber is suitable for containing a reactive gas. The catalyst layer is between the reactive gas chamber and the diffusion layer. The fuel diffuses to the catalyst layer via the diffusion layer such that a combustion reaction of the fuel and the reactive gas is conducted in the catalyst layer to consume the reactive gas and generate a gaseous product. The sensor is disposed on the reactive gas chamber for measuring the concentration of the reactive gas or the concentration of the gaseous product in the reactive gas chamber. | 06-03-2010 |
20100159299 | PASSIVE FUEL CELL ASSEMBLY - A passive fuel cell assembly including a membrane electrode assembly, an anode current collector, a cathode current collector, a hydrophilic and gas-impermeable layer, and a gas-liquid separation layer is provided. The anode current collector and the cathode current collector are disposed at two opposite sides of the membrane electrode assembly. The hydrophilic and gas-impermeable layer is disposed on the anode current collector. The gas-liquid separation layer is disposed on the hydrophilic and gas-impermeable layer, such that the hydrophilic and gas-impermeable layer is disposed between the gas-liquid separation layer and the anode current collector. | 06-24-2010 |
20120156586 | FUEL DISTRIBUTION STRUCTURE AND FUEL CELL HAVING THE SAME - A fuel distribution structure including a first material layer, a second material layer, a flow channel layer and a filler is provided. The first material layer has a fuel inlet, the second material layer has a plurality of fuel outlets, the flow channel layer has a patterned flow channel, wherein the fuel inlet and the fuel outlets are covered by a distribution range of the patterned flow channel, and the filler is disposed in the patterned flow channel. In addition, a fuel cell having the above-mentioned fuel distribution structure is also provided. | 06-21-2012 |
20130029239 | SHUTDOWN AND SELF-MAINTENANCE OPERATION PROCESS OF LIQUID FUEL CELL SYSTEM - A shutdown and self-maintenance operation process of a liquid fuel cell system is introduced. The liquid fuel cell system gives out a shutdown signal and a liquid fuel cell of the liquid fuel cell system stops discharging when receiving the shutdown signal. Thereafter, a self-maintenance operation consisting of the following four steps will be performed: (a) Supply of the cathode gas is stopped in the liquid fuel cell system. (b) After a first duration, the supply of the cathode gas is started. (c) The liquid fuel cell discharges until the output power of the liquid fuel cell is less than or equal to a first predetermined value. (d) The liquid fuel cell stops discharging and the supply of the cathode gas is stopped again. The (a) to (d) four steps are repeated several times before the liquid fuel cell system is completely stopped. | 01-31-2013 |
20140030622 | CONTROL METHOD OF REPLENISHING ANODE FUEL FOR DMFC SYSTEM - A control method of replenishing anode fuel for DMFC system is provided. The DMFC system includes at least a fuel cell, a cathode humidity-holding layer, a fuel distribution unit, a control unit, a liquid fuel replenishment device, a fuel storage region, and a temperature detecting device. The temperature detecting device is for detecting an actual temperature of the fuel cell. The control method of replenishing anode fuel includes utilizing the control unit to adjust a fuel replenishment amount supplied from the liquid fuel replenishment device. The fuel replenishment amount is the sum of a basic replenishment amount and a replenishment amount for temperature correction. The basic replenishment amount is a function of actual discharge current of the fuel cell. The replenishment amount for temperature correction is a function of the difference between the actual temperature of the fuel cell and the target temperature. | 01-30-2014 |
20140131340 | HEATING METHOD OF HEATING APPARATUS - A heating method of a heating apparatus is provided. The heating apparatus includes a fuel cell, a power storage device, a heat-electricity conversion element, and a switching unit. The fuel cell is adapted for charging the power storage device. The power storage device is adapted for supplying electricity to the heat-electricity conversion element. The switching unit is adapted for switching the heating apparatus between a first mode and a second mode. The method includes a first heating process in which the fuel cell charges the power storage device and generates heat during a charging process, and a second heating process in which the power storage device supplies electricity to the heat-electricity conversion element and the heat-electricity conversion element generates heat. The first heating process and the second heating process are performed alternatively or simultaneously when the heating apparatus is switched to the first mode or the second mode, respectively. | 05-15-2014 |
20140212781 | STACKED TYPE FUEL CELL - A stacked type fuel cell includes electricity generating modules, at least two cathode flow field plates, and at least one common anode flow field plate. Each electricity generating module includes an anode collector, a cathode collector, a membrane electrode assembly (MEA) between the anode collector and the cathode collector, a fuel diffusion layer, and a cathode moisture layer. The fuel diffusion layer and the cathode moisture layer are respectively located at two sides of the MEA. The anode collector is between the fuel diffusion layer and the MEA, and the cathode collector is between the cathode moisture layer and the MEA. The common anode flow field plate is between two fuel diffusion layers in two adjacent electricity generating modules. The common anode flow field plate and two electricity generating modules located at two sides of the common anode flow field plate are sandwiched between the cathode flow field plates. | 07-31-2014 |