Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electric Properties of Carbon Aerogel for Super Capacitors

카본 에어로겔을 이용한 초고용량 커패시터의 전기적 특성

  • 한정우 (삼화콘덴서공업(주) 부설연구소) ;
  • 이경민 (삼화콘덴서공업(주) 부설연구소) ;
  • 이두희 (삼화콘덴서공업(주) 부설연구소) ;
  • 이상원 (삼화콘덴서공업(주) 부설연구소) ;
  • 윤중락 (삼화콘덴서공업(주) 부설연구소)
  • Received : 2010.06.18
  • Accepted : 2010.07.23
  • Published : 2010.08.01
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Abstract

Carbon aerogels are promising materials as electrodes for electrical double layer capacitors (EDLCs). An optimum process is presented for synthesis of nanoporous carbon aerogels via pyrolyzing resorcinol-formaldehyde (RF) organic aerogels, which could be cost-effectively manufactured from RF wet gels. The major reactions between resorcinol and formaldehyde include an addition reaction to form hydroxymethyl derivatives ($-CH_2OH$), and then a condensation reaction of the hydroxymethyl derivatives ($-CH_2-$)- and methylene ether ($-CH_2OCH_2-$) bridged compounds. The textural properties of carbon aerogels obtained were characterized by nitrogen adsorption/desorption analysis and SEM and TEM. The application of the resultant carbon for electrodes of electric double layers capacitor (EDLC) in organic TEABF4/ACN electrolyte indicated that the ESR, as low as 55 $m{\Omega}$, was smaller than for commercially activated carbons. And EDLC with carbon Aerogel electrodes has an excellent stable more than for commercially activated carbons.

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