EDLC의 전기화학적 성능에 대한 메조기공 구조의 효과

• 영문명: Effect of pore structure on electrochemical performance of EDLC
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 이명숙(Myung Suk Lee) 신윤성(Yun Sung Shin) 이종대(Jong Dae Lee)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제27권 제3호, 310~317쪽, 전체 8쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2009.09.30

영문 초록

The electrochemical properties of electric double layer capacitor(EDLC) was studied by controlling pore size distribution and specific surface area of the activated carbon fiber(ACF). The mesoporous ACF, which was prepared by the iron exchange method, showed the tendency of increasing average pore size and decreasing total surface area. The mesoporous ACF (surface area = 2225 m2/g, pore size=1.93 nm) showed increased mesopore(pore size=1~3nm) volume from 0.055 cc/g to 0.408 cc/g compared to its raw ACF. The charging capacity of the EDLC which uses the prepared mesoporous ACF also increased from 0.39 F/cm2 to 0.55 F/cm2. From these results, it can be known that the electrochemical properties of EDLC are mainly dependent on the specific surface area, but above the surface area 2200 m2/g, it is the mesopore volume that affects the performance of the capacitor considerably. Because the increased mesopore volume results in a decreased ion mobility resistance, the charge capacitance is enhanced.

목차

1. 서 론

2. 실 험

3. 결과 및 고찰

4. 결 론

참고문헌

키워드

mesopore ACF ion exchange EDLC specific surface area