Patent application number | Description | Published |
20090011294 | Hydrogen generator and fuel cell system with the same - A hydrogen generator includes a water storage container for storing water, a reaction container for receiving a solid fuel that is a mixture of a complex metal hydride and catalysts, and a water supplying source that is connected between the water storage container and the reaction container to supply the water to the reaction container. | 01-08-2009 |
20090107662 | EVAPORATOR FOR FUEL CELL SYSTEM - An evaporator for a fuel cell system generating steam used for a steam reforming reaction provides an evaporator including a body having an inner space formed by a hollow for allowing a flow of a fluid, and a plurality of cell barrier members dividing the inner space into a plurality of spaces and having heat conductivity. The spaces include at least one first space for allowing a flow of a flue gas and at least one second space for allowing a flow of water. | 04-30-2009 |
20090110973 | FUEL CELL SYSTEM - A fuel cell system includes a fuel cell stack for generating electricity by a electrochemical reaction of hydrogen and oxygen; a controller for controlling the operation of the system; a hydride storage tank for storing hydride powder as a source of hydrogen for the fuel cell stack; a hydrogen separating chamber for collecting hydrogen gas generated from a reaction of the hydride powder and liquid catalyst; a powder transferring device for transferring the hydride powder to the hydrogen separating chamber; and a residue collector for collecting residues that are generated from the reaction and settled at the bottom of the hydrogen separating chamber. | 04-30-2009 |
20090110974 | FLOW CHANNEL AND FUEL CELL SYSTEM - A fuel cell system includes a fuel cell stack for generating electric energy by an electrochemical reaction of hydrogen and oxygen; a hydride tank for storing a liquid hydride; a liquid catalyst tank for storing a liquid catalyst for promoting a hydrogen gas generation reaction from the liquid hydride; a reaction flow channel for promoting laminar flow of the liquid hydride and the liquid catalyst; and a hydrogen separator for storing the hydrogen gas generated from the reaction flow channel and transferring the hydrogen gas to the fuel cell stack. | 04-30-2009 |
20090169932 | FUEL CELL SYSTEM AND REFORMER - A fuel cell system and a reformer for a fuel cell system prevents backfire and improves efficiency of heat transfer. The fuel cell system includes a reformer generating hydrogen gas from fuel including hydrogen by a catalytic chemical reaction using heat energy, and at least one electricity generating unit generating electrical energy by an electrochemical reaction between the hydrogen gas and oxygen. The reformer includes a case, a heat source, and a reforming reaction part. The case forms an external shape. The heat source is disposed in the case to generate heat energy by an oxidation reaction between fuel and a catalyst, and includes a mesh, an oxidation catalyst layer formed on a surface of the mesh, and at least one fuel injection nozzle supplying the fuel to the oxidation catalyst layer. The reforming reaction part is disposed in the case to generate hydrogen gas from fuel using the heat energy generated from the heat source. | 07-02-2009 |
20110070518 | UNIT CELL OF SOLID OXIDE FUEL CELL AND STACK USING THE SAME - A unit cell of a solid oxide fuel cell (“SOFC”) and a fuel cell stack including the SOFC are disclosed. The SOFC may include a first electrode formed in a hollow cylinder shape, a second electrode formed on an outer surface of the first electrode, an electrolyte layer formed between the first electrode and the second electrode and a cap coupled to an end portion of the first electrode. A seating groove may be formed in the cap such that a conductor may be inserted into the seating groove and be in surface contact with the cap. The cap may include a conductive material and a current collection area of the unit cell may be broad when the fuel cell is included in, a fuel cell stack. | 03-24-2011 |
20110086293 | SOLID OXIDE FUEL CELL HOUSING - A housing for a solid oxide fuel cell, the housing including a plurality of side walls defining a cavity; a first opening in one of the plurality of side walls, the first opening being configured to allow fluid to enter into the cavity; a second opening in one of the plurality of side walls, the second opening being configured to allow the fluid to exit from the cavity; and a flow path extending unit between the first opening and the second opening to increase a length of a flow path between the first opening and the second opening. | 04-14-2011 |
20110117475 | Anode supported solid oxide fuel cell - An anode supported solid oxide fuel cell including a cylinder-type anode, the cylinder-type anode having a hollow part therein; an electrolyte and an air gap sequentially laminated on an outer peripheral surface of the anode; and a plurality of conductors in the hollow part, the conductors being capable of current collecting in the cell. | 05-19-2011 |
Patent application number | Description | Published |
20090110978 | FUEL CELL SYSTEM - A fuel cell system that effectively processes a flue gas generated from a heat source of a fuel reforming apparatus. The fuel reforming apparatus generates a reforming gas containing hydrogen through a reformation reaction of the fuel from a fuel supply, and a fuel cell main body generates electrical energy through an electrochemical reaction of the reforming gas with an oxidizing agent. The fuel reforming apparatus includes a reforming reaction part and a heat source. The reforming reaction part induces a reforming reaction in the fuel, and the heat source provides heat energy to the reforming reaction part. A flue gas postprocessor induces an oxidation-reduction reaction in a flue gas exhausted by a combustion reaction of the heat source to decrease toxic ingredients, such as CO, hydrocarbons, and NO | 04-30-2009 |
20090110979 | FUEL REFORMING DEVICE AND FUEL CELL SYSTEM - A fuel reforming device that prevents a flash-back phenomenon includes a reforming reactor and a heater. The reforming reactor reforms a fuel, and the heater provides thermal energy to the reforming reactor by generating the thermal energy by a catalytic oxidation reaction between a catalytic layer and an oxidation reaction material. The heater includes an inflow pipe that receives the oxidation reaction material, an outflow pipe that outputs a flue gas generated by the catalytic oxidation reaction, and a flue gas retrieving pipe that connects the outflow pipe and the inflow pipe to direct the flue gas to the inflow pipe. | 04-30-2009 |
20110070517 | MANIFOLD AND SOLID OXIDE FUEL CELL MODULE HAVING THE SAME - A manifold for distributing and supplying a fluid to solid oxide fuel cell (SOFC) cells. The manifold may include at least one opening disposed at one side surface of a housing to allow the fluid to flow into the housing therethrough. A plurality of second openings are disposed at another side surface of the housing to allow the fluid to be discharged out from the housing therethrough. A porous member is disposed to partition an internal space of the housing between the first opening and the plurality of second openings. In the manifold, the porous member is formed so that the first opening ratio per unit area at a first portion positioned adjacent to the first opening varies with increasing distance toward a second portion positioned distant from the first opening. | 03-24-2011 |
20120015277 | BUNDLE-TYPE INTERCONNECTOR AND FUEL CELL HAVING THE SAME - A bundle-type interconnector is used in a fuel cell. In one embodiment, a bundle-type interconnector includes an interconnector and a plurality of projections. A plurality of accommodating grooves are formed in the interconnector, and the interconnector has conductive connection members that electrically connect the interiors of the accommodating grooves. Each of the projections is inserted into the accommodating groove, and a conductive material is coated on an outer surface of each of the projections. Accordingly, a cell bundle can be configured regardless of opened and closed interconnectors and the connection structure thereof, and maintenance and repair can be easily performed during the operation of the fuel cell. | 01-19-2012 |
20120015278 | SOLID OXIDE FUEL CELL AND FUEL CELL ASSEMBLY THEREOF - A solid oxide fuel cell assembly includes a unit cell including an anode, an electrolytic layer, and a cathode that are sequentially stacked, and an adapter at one end of the unit cell, the adapter being coupled to the anode or the cathode of the unit cell and configured to collect current. | 01-19-2012 |
20120043820 | FUEL CELL SYSTEM HAVING BYPASS CIRCUIT AND METHOD OF DRIVING THE SAME - Disclosed is a fuel cell system, which bypasses a cell, bundle, or stack. The fuel cell system includes a stack, which includes at least one unit cell including an anode, a cathode, and an electrolyte formed between the anode and the cathode. The unit cell produces electricity via an electrochemical reaction of hydrogen and oxygen provided from the anode and the cathode. The fuel cell system includes switches connected in series for connecting the unit cells in series or for short-circuiting one unit cell with adjacent unit cells, and a bypass switch to connect two unit cells separated by at least one unit cell. The fuel cell system reduces or minimizes influence of a defective cell, bundle, or stack on another normal cell, bundle, or stack, and thus the fuel cell system may operate for a long time and have excellent durability. | 02-23-2012 |
20120183884 | SEPARATOR AND SOFC HAVING THE SAME - Disclosed is a separator to seal a fuel chamber and a solid oxide fuel cell (SOFC) having the same. The separator for the SOFC includes a through hole to accommodate a unit cell and a groove formed in an inside surface of the through hole. According to the present invention, a groove where a sealing material is disposed is formed in a portion to be welded to stably form a filler metal. Further, a slanting part formed on the groove presses the sealing material in a direction to the unit cell to improve sealing efficiency. | 07-19-2012 |
20130022889 | FUEL CELL STACK - Disclosed herein is a fuel cell stack in which the diameter of holes of a separator is formed larger than the diameter of respective unit cells, so that a plurality of unit cells may be easily coupled to the separator. The fuel cell stack may include a plurality of electrically connected unit cells, a separator having a plurality of holes corresponding to the plurality of unit cells. Each hole may have a diameter larger than a respective diameter of the unit cells, which allows one side of the unit cell to pass through the hole. The fuel cell stack may include a plurality of fixing members seated on the separator at one side of the unit cells and surrounding an outside of at least one unit cell. The fuel cell stack may include a sealing agent formed along the outside of the unit cell to close the holes. During operation, the fuel cell stack with the above configuration may prevent damage to the unit cells. | 01-24-2013 |
20130084511 | SOLID OXIDE FUEL CELL STACK - A solid oxide fuel cell stack is disclosed. The solid oxide fuel cell stack may include a first fuel chamber, flow passage pipes, a unit cell, a second fuel chamber, a first oxidizer chamber, a second oxidizer chamber, and a stabilization chamber. The flow passage pipes are fluidly connected to a bottom end of the first fuel chamber. The unit cell, in which a bottom thereof is shielded, is formed to surround the flow passage pipes and forms the flow passage between the flow passage pipes and the unit cell. The second fuel chamber is fluidly connected to a top end of the unit cell and configured to discharge non-reaction gas from the unit cell. The stabilization chamber is formed between the second fuel chamber and the second oxidizer chamber. | 04-04-2013 |
20130089804 | SOLID OXIDE FUEL CELL STACKS AND FUEL CELL MODULE HAVING THE SAME - A solid oxide fuel cell stack is disclosed. The solid oxide fuel cell stack may include a cell array, a pair of planar current collecting members, first and second terminal portions, and a pair of electric insulating members. A plurality of interconnector-type unit cells may be electrically connected in parallel to form a bundle, and a plurality of bundles may be electrically connected in series. The pair of the planar current collecting members may be electrically connected electrically to the plurality of bundles and configured to collect current. The first and second terminal portions contact the current collecting members. The pair of insulating members has first through-holes through which the first and second terminal portions pass, and to the insulating members are formed outside the pair of the current collecting members. | 04-11-2013 |
20130095396 | SOLID OXIDE FUEL CELL STACK - A solid oxide fuel cell (SOFC) stack is disclosed. The SOFC may include an oxidizing agent flow path fluidly connecting a first oxidizing agent chamber and a second oxidizing agent chamber. The first oxidizing agent chamber may include an oxidizing agent supply pipe through which an oxidizing agent is flowed from an outside thereof. The second oxidizing agent chamber may perform a reduction reaction on the oxidizing agent received from the first oxidizing agent chamber. In operation, a fluid flows between the first and second oxidizing agent chambers, and may be provided to an outside of the second oxidizing agent chamber. Further, the structure of the flow path may allow heat to be conducted from the second oxidizing agent chamber. | 04-18-2013 |
20130122400 | FUEL CELL - Disclosed herein is a fuel cell including a unit cell having a electrolytic layer, a first electrode layer formed inside the electrolytic layer, and a second electrode layer formed outside the electrolytic layer. The fuel cell further includes an inner tube positioned inside the unit cell and extending in a longitudinal direction of the unit cell, the inner tube configured to fluidly connect the unit cell with another unit cell, and the inner tube having a variable outer diameter along the longitudinal direction of the unit cell. The fuel cell may be configured to improve fuel or oxidizer flow efficiency. The fuel cell may be configured to maintain flow rate for and improve rection time of fuel or oxidizer during operation of the fuel cell. | 05-16-2013 |
20130137008 | DISTRIBUTOR AND FUEL CELL MODULE HAVING THE SAME - A distributor and a fuel cell module including the distributor are disclosed. The distributor is for supplying a fuel or oxidant from a supply tube to a plurality of distribution portions. The distributor includes a buffer portion and a guide portion. The buffer portion has a center for receiving the fuel or oxidant from the supply tube, and a buffer surface extending away from the center. The guide portion defines a first space with a periphery of the buffer portion. The guide portion is radially connected to the plurality of distribution portions about a center axis of the distributor. | 05-30-2013 |
20130143137 | SOLID OXIDE FUEL CELL STACK - A solid oxide fuel cell stack is disclosed. In one aspect, the solid oxide fuel cell stack includes unit cells, an external collector, a first stack collecting member, a cap, and a suspension member. The external collector contacts an outer periphery of each of the unit cells and electrically connects the unit cells to each other. The first stack collecting member is positioned to collect current from a distal unit cell. A cap is provided in one end of the distal unit cell. The suspension member has one side thereof suspended from the cap and the other side fixed to the first stack collecting member to distribute weight of the first stack collecting member. Structural stability of a stack collector may be maintained even at oxidizing atmosphere of high temperature when driving the fuel cell stack. | 06-06-2013 |
20130216930 | INTERCONNECT-TYPE SOLID OXIDE FUEL CELL AND FUEL CELL STACK HAVING THE SAME - An interconnecting-type solid oxide fuel cell is disclosed. The fuel cell includes a unit cell, a first current collecting member, a first insulating member, and a second current collecting member. The unit cell has a first electrode layer, an electrolyte layer, and a second electrode layer sequentially formed from an inside thereof, and has an interconnector configured for electrical connection to the first electrode layer and exposed to an outside thereof in a state in which the interconnector is insulated from the second electrode layer. The first current collecting member is formed on an outside of the interconnector and configured to collect current. The first insulating member is formed on an outside of the first current collecting member. The second current collecting member is wound around an outer circumferential surface of the second electrode layer and an outside of the first insulating member. | 08-22-2013 |
20130224630 | SOLID OXIDE FUEL CELL AND MANUFACTURING METHOD THEREOF - A solid oxide fuel cell and a manufacturing method thereof includes a unit cell and a cell coupling member. The unit cell includes a first electrode layer, an electrolyte layer surrounding an outer peripheral surface of the first electrode layer, and a second electrode layer surrounding the electrolyte layer so that one end portion of the electrolyte layer is exposed. The cell coupling member is coupled to the unit cell and includes a coupling member. A sealing member including at least two layers having different porosities is coated on at least one portion of the coupling member to seal the unit cell and the cell coupling member. | 08-29-2013 |
20140030626 | SOLID OXIDE FUEL CELL - A solid oxide fuel cell (SOFC) includes a plurality of cylindrical unit cells and a current collecting member. Each unit cell has a first electrode, a second electrode provided to an outside of the second electrode, and an electrolyte interposed between the first and second electrodes. The current collecting member electrically connects the unit cells. In the SOFC, the current collecting member is composed of a plurality of layers, and the layers have different voids from one another. | 01-30-2014 |