Specific Capacitance Characteristics of Electric Double Layer Capacitors with Phenol Based Activated Carbon Fiber Electrodes and Organic Electrolytes

페놀계 활성탄소섬유 전극과 유기성 전해질을 사용하는 전기이중층 캐패시터의 비축전용량 특성

  • Received : 1998.04.13
  • Accepted : 1999.09.13
  • Published : 1999.10.10


The specific capacitance characteristics which were of the electric double layer capacitors(ELDC) made of phenol based activated carbon fiber(ACF) electrodes and organic electrolytes has been investigated with respect to different specific surface area of electrodes and different kinds of organic electrolytes. Throughout charge-discharge cell tests, it has been found that larger surface area and larger pore diameter of electrodes contribute to increase the specific capacitance. Binary mixture of organic solvent with propylene cabonate(PC) and tetrahydrofuran(THF) for 1 M-$LiClO_4$ electrolyte has a higher specific capacitance than single solvent of PC or mixed solvent with PC and diethyl cabonate(DEC). Also, even though 1 M-tetraethylamonium perchlorate(TEAPC) of organic electrolyte shows higher specific capacitance, it has longer charge time because of its lower ion mobility.


activated carbon fiber;carbon electrode;electric double layer capacitor;organic electrolytes;supercapacitor


  1. J. Electrochem. Soc. v.2 S. T. Mayer;R. W. Pekala;J. L. Kaschmitter
  2. Lithium Batteries G. E. Blomgren;J. P. Gabano(ed.)
  3. NEC技報 v.46 T. Saito;J. Tabuchi;Y. Kibi;K. Sato
  4. 電氣化學(Denkikagaku) v.66 吉田沼彦
  5. IEEE Trans. v.CHMT-10 A. Yoshida;I. Tanahashi;A. Nishino
  6. Chem. Mater. v.8 H. Tamai;T. Kakii;Y. Hirota;T. Kumamoto;H. Yasuda
  7. Proc. intern. Symp. on Electrochemical Capacitors K. C. Liu;M. A. Anderson
  8. 第23會 日本炭素材料學會 年會要旨集 遠膜守信;牛尾洋介
  9. NEC技報 v.47 T. Saito;Y. Kibi;M. Kurata;Y. Yokono
  10. J. Electrochem. Soc. v.137 I. Tanahashi;A. Yoshida;A. Nishino
  11. Proc. 6th Intern. Symp. on Double Layer Capacitors and Similar Energy Storage Devices D. Zogbi
  12. Carbon v.35 R. Torregrosa;J. M. Martin;M. C. Mittelmeijer
  13. Proc. Intern. Symp. on Fundamentals and applications of Electrochemical Capacitors B. E. Conway
  14. 공업화학 김종휘;안계혁;김정덕;김태환