You-Mee
You-Mee Kim, Yongin-Si KR
Patent application number | Description | Published |
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20100081028 | Binder for a fuel cell catalyst composition, a membrane electrode assembly for a fuel cell using the binder and a method for preparing a membrane electrode assembly - A membrane-electrode assembly includes a polymer electrolyte membrane with an anode and a cathode on opposite sides. Each of the anode and the cathode includes an electrode substrate, and a catalyst layer is formed on at least one of the electrode substrates and includes at least one proton conductive crosslinked polymer. The membrane-electrode assembly may include catalyst layers that are positioned on opposite sides of a polymer electrolyte membrane, either of which includes at least one crosslinked proton conductive polymer. | 04-01-2010 |
You-Mee Kim, Suwon-Si KR
Patent application number | Description | Published |
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20090081526 | ELECTRODE FOR FUEL CELL AND FUEL CELL SYSTEM INCLUDING SAME - An electrode for a fuel cell and a fuel cell system including the electrode. The electrode includes an electrode substrate including carbon fiber and a hydrophobic polymer fiber, and a catalyst layer on the electrode substrate. As such, the electrode uniformly includes the hydrophobic polymer fiber thereon, and therefore can uniformly release and maintain water generated during operation of the fuel cell, thereby improving fuel cell characteristics. | 03-26-2009 |
20130252128 | Membrane-electrode assembly for fuel cell with binder layer having inorganic additive and fuel cell system using the same - The present invention relates to a membrane-electrode assembly for a fuel cell and a fuel cell system comprising the same. The membrane-electrode assembly includes an anode and a cathode facing each other and a polymer electrolyte membrane positioned therebetween. The polymer electrolyte membrane adheres to the anode through a binder disposed between the polymer electrolyte membrane and the anode, and adheres to the cathode through a binder disposed between the polymer electrolyte membrane and the cathode. The binder and the polymer electrolyte membrane can include a cation exchange resin and an inorganic additive. | 09-26-2013 |
You-Mee Na, Seoul KR
Patent application number | Description | Published |
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20140190908 | CONTINUOUS CIRCULATION SAND FILTER AND CONTINUOUS CIRCULATION SAND FILTERING METHOD - Provided is a continuous circulation sand filter including a filtering barrel filled with a sand filtering layer, an inflow tube for introducing raw water into the filtering barrel, a treated water discharge part for discharging treated water purified by passing the raw water through the sand filtering layer from a lower end of the sand filtering layer to an upper end thereof, an air lift tube for transferring contaminated sand, located in the lower end of the sand filtering layer, from a lower part of the filtering barrel to an upper part thereof, a transfer water discharge filter contacting the air lift tube to discharge transfer water moved upward together with sand through the air lift tube and trap the sand and a foreign substance, a descent guide tube downwardly moving the sand and the foreign substance moved to the upper part of the filtering barrel through the air lift tube, and a foreign substance separation tube suctioning the downwardly moving foreign substance to remove the foreign substance from the downwardly moving sand, and discharging the foreign substance. | 07-10-2014 |