| Patent application number | Description | Published |
|---|
| 20080251971 | Electrode for supercapacitor having metal oxide deposited on ultrafine carbon fiber and the fabrication method thereof - The present invention discloses an improved electrode for a supercapacitor and a method of preparation thereof. The inventive electrode comprises a collector, a carbon substrate disposed on the collector comprising ultrafine carbon fibers having a specific surface area of at least 200 m | 10-16-2008 |
| 20090056808 | DYE-SENSITIZED SOLAR CELL WITH METAL OXIDE LAYER CONTAINING METAL OXIDE NANOPARTICLES PRODUCED BY ELECTROSPNNING AND METHOD FOR MANUFACTURING SAME - A dye-sensitized solar cell having improved photoelectric conversion characteristic includes a metal oxide layer having dye-adsorbed metal oxide nanoparticles, wherein the metal oxide nanoparticles are formed by electrospinning a mixed solution of a metal oxide precursor and a polymer into ultrafine composite fibers, and thermally compressing and sintering the ultrafine composite fibers. | 03-05-2009 |
| 20090212695 | White and color photoexcitation light emitting sheet and method for the fabrication thereof - The present invention relates to a white and color photoexcitation light emitting sheet comprising a substrate, a light source formed on the substrate, and a white and color photoexcitation light emitting layer capable of converting a light emitted from the light source into a light having a different wavelength, where the white and color photoexcitation light emitting layer is fabricated by mixing a matrix polymer, white and color photoexcitation light emitting materials and a solvent, spinning the resulting mixture to prepare an ultrafine composite fiber layer of the matrix polymer/photoexcitation light emitting materials, and thermocompressing the ultrafine composite fiber layer; and a method for fabrication thereof. The white and color photoexcitation light emitting sheet according to the present invention has uniform brightness and color coordinates and exhibits high color reproducibility. | 08-27-2009 |
| 20100002357 | CONDUCTIVE ELECTRODE USING METAL OXIDE FILM WITH NETWORK STRUCTURE OF NANOGRAINS AND NANOPARTICLES, PREPARATION METHOD THEREOF AND SUPERCAPACITOR USING THE SAME - The present invention relates to a porous conducting metal oxide electrode prepared by depositing a porous conducting metal oxide film comprising a conducting metal oxide film layer having a network structure of nanofibers, comprising nanograins or nanoparticles, on at least one surface of a current collector, and a conducting metal oxide coating layer on the network layer of the porous conducting metal oxide through the constant current method or the cyclic voltammetric method, and a high-speed charge/discharge and ultrahigh-capacity supercapacitor using the porous conducting a metal oxide electrode. | 01-07-2010 |
| 20100084007 | MODIFIED CARBON NANOTUBE GRAFTED BY LIVING POLYMER, CARBON NANOTUBE ELECTRODE AND DYE-SENSITIZED SOLAR CELL USING THE SAME, AND EACH PREPARATION METHOD THEREOF - Disclosed are to provide a modified carbon nanotube obtained by reacting a polymer to a carbon nanotube by a radical graft method, capable of minimizing lowering of a physical property of a carbon nanotube caused when being modified, and capable of enhancing dispersibility of the carbon nanotube and an adhesion strength between carbon nanotubes, the polymer having a molecular weight controlled by a living radical polymerization and still having a living radical end group. | 04-08-2010 |
| 20100084008 | DYE-SENSITIZED SOLAR CELL COMPRISING METAL OXIDE NANOBALL LAYER AND PREPARATION METHOD THEREOF - A dye-sensitized solar cell comprising a semiconductor electrode prepared by spraying a metal oxide nanoparticle dispersion on a conductive substrate using an electric field to form a metal oxide nanoball layer which is composed of agglomerated metal oxide nanoparticles and has a high porosity and specific surface area, exhibits improved photoelectric properties even when a gel or solid electrolyte is used. | 04-08-2010 |
| 20100206361 | PREPARATION METHOD OF OXIDE ELECTRODE FOR SENSITIZED SOLAR CELL AND SENSITIZED SOLAR CELL USING THE SAME - The present invention relates to a method of manufacturing an oxide electrode for a dye-sensitized solar cell including metal oxide nanoparticles by using a miller, and a dye-sensitized solar cell manufactured by using the same. More particularly, the present invention provides a method of manufacturing an oxide electrode for a dye-sensitized solar cell. The method includes (a) mixing metal oxide nanoparticles, a binder resin, and a solvent to prepare a metal oxide paste, (b) coating the metal oxide paste to a miller and pulverizing the metal oxide nanoparticles to prepare a paste including the metal oxide nanoparticles uniformly dispersed therein, and (c) coating the paste including the metal oxide nanoparticles dispersed therein on a conductive transparent substrate, performing a heat treatment of the resulting substrate, and adsorbing a dye thereon to manufacture the conductive electrode. | 08-19-2010 |
| 20100221863 | DYE-SENSITIZED SOLAR CELL BASED ON ELECTROSPUN ULTRA-FINE TITANIUM DIOXIDE FIBERS AND FABRICATION METHOD THEREOF - A dye-sensitized solar cell comprising a semiconductor electrode comprising electrospun ultra-fine titanium dioxide fibers and fabrication method thereof are disclosed. The dye-sensitized solar cell comprises a semiconductor electrode comprising an electrospun ultra-fine fibrous titanium dioxide layer, a counter electrode and electrolyte interposed therebetween. A non-liquid electrolyte such as polymer gel electrolyte or the like having low fluidity, as well as the liquid electrolyte, can be easily infiltrated thereinto. In addition, electrons can be effectively transferred since titanium dioxide crystals are one-dimensionally arranged. | 09-02-2010 |
| 20100233523 | HEAT RESISTING ULTRAFINE FIBROUS SEPARATOR AND SECONDARY BATTERY USING THE SAME - A heat-resisting ultrafine fibrous separator of the present invention is prepared by an electrospinning process, formed of ultrafine fibers of heat-resisting polymer resin having a melting point more than 1800 C or not having the melting point, or ultrafine fibers of polymer resin capable of swelling in an electrolyte, together with the ultrafine fibers of heat-resisting polymer resin. Also, polyolefine fine particles providing a shutdown function are dispersed in the heat-resisting resin or the polymer resin capable of swelling in the electrolyte. The heat-resisting ultrafine fibrous separator of the present invention has the shutdown function, low thermal contraction, thermal endurance, excellent ionic conductivity and excellent adhesive property with an electrode, so a battery having excellent cycling characteristics, and having high-energy density and high capacity can be prepared. | 09-16-2010 |
| 20100304205 | HEAT RESISTING SEPARATOR HAVING ULTRAFINE FIBROUS LAYER AND SECONDARY BATTERY HAVING THE SAME - A polyolefin separator having an heat-resistant ultrafine fibrous layer and a secondary battery using the same, in which the separator has a shutdown function, low thermal contraction characteristics, thermal endurance, excellent ionic conductivity, excellent cycling characteristics at the time of battery construction, and excellent adhesion with an electrode. The present N invention adopts a very simple and easy process to form an ultrafine fibrous layer through an electrospinning process, and at the same time, to remove solvent and to form pores. Accordingly, the separator of the present invention is useful particularly for electrochemical devices used in a hybrid electric automobile, an electric automobile, and a fuel cell automobile, requiring high thermal endurance and thermal stability. | 12-02-2010 |
| 20100317790 | GRAPHENE COMPOSITE NANOFIBER AND PREPARATION METHOD THEREOF - Disclosed are a graphene composite nanofiber and a preparation method thereof. The graphene composite nanofiber is produced by dispersing graphenes to at least one of a surface and inside of a polymer nanofiber or a carbon nanofiber having a diameter of 1˜1000 nm, and the graphenes include at least one type of monolayer graphenes, and multilayer graphenes having a thickness of 10 nm or less. The graphene composite nanofiber can be applied to various industrial fields, e.g., a light emitting display, a micro resonator, a transistor, a sensor, a transparent electrode, a fuel cell, a solar cell, a secondary cell, and a composite material, owing to a unique structure and property of graphene. | 12-16-2010 |
| 20110072460 | BROADCAST RECEIVER AND CHANNEL CHANGING METHOD THEREOF - A broadcast receiver and a channel changing method are provided. The broadcast receiver includes a first receiver which receives broadcast data of a plurality of channels; a second receiver which receives a plurality of keys input sequentially to select one of the plurality of channels; and a controller which processes a changeable channel among a plurality of channels corresponding to at least one key input first among the plurality of keys input before a completion of the input of the plurality of keys from the second receiver. | 03-24-2011 |
