EDLC Method for manufacturing electrode of electric double layer capacitor

The present invention relates to a method for manufacturing an electrode of an EDLC, which comprises the steps of: increasing the viscosity of a molten metal by mixing a thickener with the molten metal after melting a first metal powder; forming a mixture by mixing a conductive fiber powder with the...

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Bibliographische Detailangaben
Hauptverfasser: KIM TAE YUN, KIM DOO HWAN, EOM KI CHOON, LEE JAE HAK, AN SIN YOUNG, PARK JONG ON
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention relates to a method for manufacturing an electrode of an EDLC, which comprises the steps of: increasing the viscosity of a molten metal by mixing a thickener with the molten metal after melting a first metal powder; forming a mixture by mixing a conductive fiber powder with the molten metal; foaming the molten metal by mixing a foaming agent in the mixture and then maintaining the same at 600 to 700℃; forming an open-cell foamed metal by cooling the molten metal when the molten metal is foamed; and applying an electrode active material to a surface of the open-cell foamed metal. According to the present invention, calcium (Ca) is used as the thickener, titanium hydroxide (TiH_2) is used as the foaming agent, and a mixture of a second metal powder and carbon nanofibers is used as the conductive fiber powder. Accordingly, the energy density is improved and a product can be lightweight. 본 발명의 EDLC의 전극 제조방법에 관한 것으로, 제1금속 분말을 용융시킨 후 용융 금속에 증점제를 혼합하여 용융 금속의 점도를 증가시키는 단계; 용융 금속에 전도성 섬유 분말을 혼합하여 혼합물을 형성하는 단계; 혼합물에 발포제를 혼합한 후 600 내지 700℃로 유지하여 용융 금속을 발포시키는 하는 단계; 용융 금속이 발포되면 용융 금속을 냉각시켜 개포형 발포 금속을 형성하는 단계; 및 개포형 발포 금속의 표면에 전극 활물질을 도포하는 단계를 포함하며, 증점제는 칼슘(Ca)이 사용되며, 발포제는 수산화 티타늄(TiH2)이 사용되며, 전도성 섬유 분말은 제2금속분말과 카본 나노 섬유(carbon nano fiber)의 혼합물이 사용되는 것을 특징으로 한다.