Method for Preparing Supercapacitor Electrode by Using Nanoparticles with Improved Dispersibility Electrode Prepared Thereby and Transparent Supercapacitor Using Same

The present invention relates to a method for preparing a supercapacitor electrode by using nanoparticles with improved dispersibility, an electrode prepared thereby, and a transparent supercapacitor using the same. According to the present invention, the problem of agglomeration of metal oxide nano...

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Bibliographische Detailangaben
Hauptverfasser: HONG DAJUNG, RYU ILHWAN, YIM SANGGYU, CHOE GEUN PYO
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention relates to a method for preparing a supercapacitor electrode by using nanoparticles with improved dispersibility, an electrode prepared thereby, and a transparent supercapacitor using the same. According to the present invention, the problem of agglomeration of metal oxide nanoparticles can be solved by improving dispersibility of the metal oxide nanoparticles through surface treatment using an organic acid, thereby forming a homogeneous coating. In addition, since the organic acid can be efficiently removed while maintaining homogeneity of the coating through the heat treatment when preparing the electrode, the problems of increasing electrical resistance of the electrode due to the organic acid and inhibition of an interaction with an electrolyte can be solved. Therefore, a supercapacitor with high performance and excellent transparency can be prepared using the present invention. 본 발명은 분산성이 개선된 나노입자를 이용한 슈퍼커패시터용 전극 제조방법, 이에 의해 제조된 전극 및 이를 이용한 투명 슈퍼커패시터에 관한 것이다. 본 발명에서는 유기산을 이용한 표면처리를 통해 금속산화물 나노입자의 분산성을 개선함으로써, 금속산화물 나노입자의 응집 문제를 해결하여 균질한 코팅을 형성할 수 있다. 또한, 전극 제조 시 열처리 공정을 통해 코팅의 균질성은 유지하면서 유기산을 효율적으로 제거할 수 있으므로, 유기산에 의해 전극의 전기저항이 상승하는 문제 및 전해액과의 상호작용 저해 문제를 해결할 수 있다. 따라서, 본 발명을 이용하면 투명성이 우수한 고성능의 슈퍼커패시터를 제조할 수 있다.