| Patent application number | Description | Published |
|---|
| 20080252299 | Cell or stack for evaluating performance of fuel cell and method of evaluating performance of fuel cell using the same - The present invention provides a cell or stack for evaluating the performance of a fuel cell and a method of evaluating the performance of the fuel cell using the cell or stack, in which a semiconductor thermoelectric device, attached to the side surface of the unit cell or stack of the fuel cell, is provided so as to evaluate the performance of the fuel cell in an environment in which temperature is maintained at a uniform temperature. | 10-16-2008 |
| 20090186252 | ORGANIC-INORGANIC COMPOSITE POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELLS AND ITS PREPARATION METHOD - The present invention relates to a preparing process an organic-inorganic composite polymer membrane for fuel cell by using sol-gel process. At this time, it is characterized in that when a sulfonated hydrocarbons polymer having ion conductivity is cast with film shape, sol-gel process which enables to distribute an inorganic matter having an excellent cation exchange and moisture holding capacity homogeneously is used. With homogeneous introduction of an inorganic matter into a polymer matrix by sol-gel process according to the present invention, it is possible to improve a phenomenon that an inorganic matter is partially concentrated at some position, thereby enabling to obtain an ion conducting organic-inorganic composite polymer membrane having an excellent ion conductivity. | 07-23-2009 |
| 20100236335 | INTEGRATED MULTI-MEASUREMENT SYSTEM FOR MEASURING PHYSICAL PROPERTIES OF GAS DIFFUSION LAYER FOR POLYMER ELECTROLYTE FUEL CELL WITH RESPECT TO COMPRESSION - Disclosed is an integrated multi-measurement system for measuring physical properties including thickness, electrical resistance and differential pressure of a gas diffusion layer for a polymer electrolyte fuel cell with respect to compression. The integrated multi-measurement system simultaneously measures changes in the physical properties of the gas diffusion layer depending on pressure upon measurement of the physical properties of the gas diffusion layer of the fuel cell and also measures through-plane permeability in which a gas is passed through a sample in a direction perpendicular to the sample and in-plane permeability in which a gas is passed through a sample in a direction parallel to the sample. | 09-23-2010 |
| 20110059387 | HIGHLY PROTON CONDUCTIVE CROSSLINKED VINYLSULFONIC ACID POLYMER ELECTROLYTE COMPOSITE MEMBRANES AND ITS PREPARATION METHOD FOR POLYMER ELECTROLYTE FUEL CELLS - A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane. | 03-10-2011 |
