Hyundai Motor Company

Kia Motors Corporation

Yomsei University

Kyung Wan Nam

Il Hwan Kim

Jin Ho Park

Kwang Bum Kim

The present invention relates to a method for manufacturing a nano-structured metal oxide electrode, and in particular, to a method for manufacturing a metal oxide electrode having a few tens or hundreds of nanometers in diameter that is well adapted to an electrode of a supercapacitor using an alumina or polymer membrane having nano-sized pores as a template. Preferred methods for manufacturing a nano-structured metal oxide electrode comprises steps of preparing an alumina or polymer template having a plurality of nano-sized pores; sputtering a metal acting as a current collector with a few tens of &#x3bc;m of thickness in one surface of the alumina template; charging the template, after the sputtering step, by submerging it into a precipitation solution having a metal salt dissolved therein, and applying a static current or electrode electric potential thereby electrochemically precipitating a metal oxide in the nano-sized pores of the template; a step in which the composite of the alumina or polymer template and the metal oxide are contacted with a sodium hydroxide solution or other base to remove the alumina or polymer template; and an optional drying step to provide the nano-structured metal oxide electrode.

Method for manufacturing a nano-structured electrode of metal oxide

An apparatus and method are provided for manufacturing an electrode of hydrous ruthenium oxide thin film, consisting of an injector for spraying a precursor solution, a substrate for depositing the precursor solution, a base for supporting the substrate and a halogen lamp for heating the substrate, a DC power supply connected to the injector and base, a space adjuster for adjusting the spraying space between the injector and the base, and temperature controller for controlling the temperature of the base. Because of the strong electric field, the sprayed ruthenium precursor solution atomizes the nano-sized very fine particles. Therefore, the atomized particles are deposited on the substrate to form a very fine porous thin film under the influence of electrically charged molecular actions without the influence of gravitation force. The ruthenium oxide electrode formed the fine porous thin film has excellent property of super capacitor, composite electrode of ruthenium oxide and activated carbon.

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Seoul, South Korea

Kyung Wan Nam