Patent application number | Description | Published |
20100164932 | Address Driving Circuit and Plasma Display Device Having the Same - An address driving circuit includes a driving device unit and an energy recovery circuit. The driving device unit drives an address electrode to an address voltage or a reference voltage in response to driving control signals during an address period. The energy recovery circuit recovers a voltage charged to the address electrode in response to switching control signals such that a voltage of the address electrode transitions to the address voltage or the reference voltage via at least two intermediate voltages including first and second intermediate voltages during the address period. | 07-01-2010 |
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 |
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 |
20120237852 | SOLID OXIDE FUEL CELL - A solid oxide fuel cell includes: a first electrode having a first side and a second side substantially parallel to the first side; a plurality of walls partitioning an interior of the first electrode into a plurality of flow channels extending through the first electrode, wherein a first wall of the walls extends from the first side to a center portion of the second side and a second wall of the walls extends from the first side to the center portion of the second side; a current collector adjacent a center portion of the first side or the center portion of the second side; a second electrode partially surrounding the first electrode; and an electrolyte between the first electrode and the second electrode. | 09-20-2012 |
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 |
20130045435 | SOLID OXIDE FUEL CELL STACK - A solid oxide fuel cell stack includes a cell array in which M interconnector unit solid oxide fuel cells are connected in parallel to form a bundle, and N bundles are connected in series; a first plate-shaped current collecting member connected to a first bundle of the N bundles, the first current collecting member including a first terminal, and a second plate-shaped current collecting member connected to an N | 02-21-2013 |
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 |
20130130147 | FUEL CELL STACK - A fuel cell stack providing a connection between a current collector and a plurality of unit cells. The fuel cell stack includes a plurality of unit cells deposed to extend in parallel along a first direction and to be electrically connected to each other; a support arranged to extend along a second direction crossing the first direction; and a current collector connected to the support via a fastener, the fastener comprising a metal layer and a metal oxide layer. Here, the metal oxide layer is formed to have a set or predetermined thickness on the surface of a metal layer of the fastener to provide an improved connection of the unit cells and the current collector. | 05-23-2013 |
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 |
20150079428 | BATTERY MODULE - A battery module including a plurality of battery cells aligned in one direction, the plurality of battery cells each having a vent on a top surface thereof; and at least one vent cover covering the vent and covering side surfaces of the plurality of battery cells, wherein one vent cover covers outer side surfaces of outermost battery cells among the aligned plurality of battery cells, or a plurality of vent covers cover side surfaces of a battery cell of the plurality of battery cells. | 03-19-2015 |