Patent application number | Description | Published |
20090233137 | Cell unit for a fuel cell and method for manufacturing the same - A cell unit for a fuel cell and a method for manufacturing the cell unit for a fuel cell are disclosed. The cell unit for a fuel cell can include an electrolyte membrane, an electrode unit that includes an anode formed on one side of the electrolyte membrane and a cathode formed on the other side of the electrolyte membrane, and a porous current collector formed by coating a conductive material onto the porous surfaces of the electrode unit. | 09-17-2009 |
20090263693 | HYDROGEN GENERATING APPARATUS AND FUEL CELL GENERATION SYSTEM - A hydrogen generating apparatus and a fuel cell power generation system having the hydrogen generating apparatus are disclosed. The hydrogen generating apparatus can include an electrolyte bath configured to contain an electrolyte solution, an anode placed inside the electrolyte bath and configured to generate electrons, a cathode placed inside the electrolyte bath and configured to receive the electrons from the anode to generate hydrogen, a condensation plate disposed on a transfer path of the hydrogen such that moisture carried in the hydrogen is condensed and the hydrogen is separated, and a heat exchanger configured to cool down the condensation plate heated by the moisture carried in the hydrogen. The hydrogen generating apparatus of the present invention can increase the efficiency of hydrogen generation by removing the moisture carried in the hydrogen while generating the hydrogen and reusing the moisture circulated through the electrolyte solution. | 10-22-2009 |
20090269648 | Fuel cell - A fuel cell is disclosed. The fuel cell can include a membrane electrode assembly (MEA), converting a chemical energy to an electrical energy; a first end plate, stacked on one surface of the MEA and formed with a first coupling hole; a second end plate, stacked on the other surface of the MEA; and a protrusion, formed on the second end plate such that the protrusion penetrates the first coupling hole and an end part of the protrusion protrudes a surface of the first end plate, and the end part being transformed such that the end part couples the first end plate and the second end plate. With the present invention, the fuel cell can reduce contact resistance between elements and its overall size and prevent a leak of fuel. In the manufacturing process, the end plates and the MEA can be arranged, improving reproducibility and repetition for mass production. | 10-29-2009 |
20090286127 | Cell unit for a fuel cell and method for manufacturing the same - Disclosed are a cell unit for a fuel cell and a method for manufacturing the same. The cell unit for a fuel cell can include an electrolyte membrane; an electrode unit, comprising an anode being formed on one surface of the electrolyte membrane and a cathode being formed on the other surface of the electrolyte membrane; a current collector, being stacked on the electrode unit to be electrically connected to the electrode unit; and a conductive layer, being interposed between the electrode unit and the current collector to reduce a contact resistance between the electrode unit and the current collector. With the present invention, the cell unit for a fuel cell can reduce contact resistance between the anode and the cathode and the current collector. Accordingly, it can be possible to reduce the overall size of the fuel cell by reducing the required thickness of the end plate. | 11-19-2009 |
20090291331 | Cell unit for a fuel cell - A cell unit for a fuel cell can include an electrolyte membrane, an electrode unit that includes an anode formed on one side of the electrolyte membrane and a cathode formed on the other side of the electrolyte membrane, and a porous current collector formed by coating a conductive material onto the porous surfaces of the electrode unit. It can be possible to reduce the contact resistance between the electrodes (the anode and the cathode), and their respective current collector, to thereby increase current collection efficiency and it can also be possible to make the thickness of the end plates thinner than a conventional design without sacrificing performance, to thereby decrease the overall size of a fuel cell. | 11-26-2009 |
20090325009 | Electric power supply apparatus and portable electronic device having the same - An electric power supply apparatus and a portable electronic device equipped with the electric power supply apparatus are disclosed. The electric power supply apparatus can include: a replaceable cartridge that supplies hydrogen or electrical power; a housing that forms a cavity, in which the cartridge may be inserted; a stack connected with the cartridge and configured, if the cartridge is supplying hydrogen, to receive the hydrogen from the cartridge and generate electrical power; and a circuit unit electrically connected with the cartridge and the stack that determines the type of the cartridge and supplies electrical power to the electronic device. With certain embodiments of the invention, a device can be recharged using replaceable cartridges. Also, various types of cartridges can be used in a single system, allowing a higher level of compatibility. | 12-31-2009 |
Patent application number | Description | Published |
20090317673 | Current collector, fuel cell stack, and fuel cell power generation system - A current collector, a method of manufacturing the current collector, a fuel cell stack, and a fuel cell power generation system are disclosed. The current collector for collecting an electric current generated in a fuel cell can include: a substrate; a collector pattern, which contains a conductive material, formed on one side of the substrate; and a corrosion-resistant metal layer, which is coated over all of the surfaces of the collector pattern, including the surface facing the substrate. This current collector can be utilized to prevent corrosion during the operation of the fuel cell, as well as to increase the life span of the fuel cell, without forming the entire configuration with an expensive corrosion-resistant metal. | 12-24-2009 |
20100009231 | STACK AND FUEL CELL POWER GENERATION SYSTEM HAVING THE SAME - A stack and a fuel cell power generation system equipped with the stack are disclosed. In accordance with an embodiment of the present invention, the stack, which generates electrical energy by reacting hydrogen with oxygen and in which the hydrogen is supplied as a fuel and the oxygen is in the air, includes: a membrane electrode assembly (MEA), which includes an electrolyte membrane and a pair of electrodes coupled to either surface of the electrolyte membrane; and a pair of current collectors, which is formed on either surface of the membrane electrode assembly, in which the current collector includes: an insulating polymer film; and a conductive adhesive layer, which is interposed between the insulating polymer film and the membrane electrode assembly. | 01-14-2010 |
20100062300 | FUEL CELL POWER GENERATION SYSTEM - A fuel cell power generation system is disclosed. The fuel cell power generation system in accordance with an embodiment of the present invention includes: a stack, which produces electrical energy by reacting hydrogen with oxygen and in which the hydrogen is supplied as fuel and the oxygen is in the air; a hydrogen tank, which supplies fuel comprising hydrogen to the stack; and a heat transfer tape, which transfers heat generated from the stack to the hydrogen tank. The fuel cell power generation system can improve the efficiency of supplying hydrogen by supplying waste heat generated from the stack to the hydrogen tank through the use of the heat transfer tape without a heat supplying device and be applied to a mobile device due to the reduced volume of the fuel cell power generation system. | 03-11-2010 |