Abstract
The characteristics of electric double-layer capacitors (EDLCs) with activated carbon powder (ACP), pulverized activated carbon fiber (ACF), and ACF-cloth have been compared. The BET surface areas of the ACP and ACF were estimated to be 1740 and 1970 m2 g−1, respectively. In the pore-size distribution curve of the ACP and ACF, the most dominant pore diameter was 1.8 and 1.1 nm for the ACP and ACF, respectively. Disc- and cloth-type of electrodes were fabricated using ACP and ACF. The electrical resistance of the ACF-disc and ACF-cloth electrodes was four orders of magnitudes lower than that of the ACP-disc electrodes. In accordance with the lower electrical resistance of the ACF-disc and ACF-cloth, the d.c. resistance of the EDLC with the ACF-disc and with ACF-cloth was lower than that of the EDLC with the ACP-disc. The highest specific volume capacitance of 28.3 F cm−3 (capacitance / volume of total ACF in the EDLC) was achieved with the ACF-disc. In the cyclic voltammograms of the ACF-disc, the stable electric double-layer charging and discharging behavior was observed.
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Okamura M., Hasuike H., Yamagishi M., Arai S., (2001) Electrochemistry 69: 414
Asakura R., Kondo T., Morita M., Hatori H., Yamada Y., (2004) TANSO No. 215: 231
Nagasawa H., Shudo A., Miura K., (2000) J. Electrochem. Soc. 147: 38
Choi Y.O., Yang K.S., Kim J.H., (2001) Electrochemistry 69: 837
Shiraishi S., Kurihara H., Oya A., (2001) Electrochemistry 69: 440
Hwang S.R., Teng H., (2002) J. Electrochem. Soc. 149: A591
Mayer S.T., Pekala R.W., Kaschmitter J.L., (1993) J. Electrochem. Soc. 140: 446
Endo M., Maeda T., Takeda T., Kim Y.J., Koshiba K., Hara H., Dresselhaus M.S., (2001) J. Electrochem. Soc. 148: A910
Tanahashi I., Yoshida A., Nishino A., (1988) Denki Kagaku (Electrochemistry) 56: 892
Tanahashi I., Yoshida A., Nishino A., (1990) J. Electrochem. Soc. 137: 3052
Tanahashi I., Yoshida A., Nishino A., (1991) Carbon 29: 1033
Tanahashi I., Yoshida A., Nishino A., (1991) J. Appl. Electrochem. 21: 28
Dollimore D., Heal G.R., (1964) J. Appl. Chem. Soc. 14: 109
Sing K.S.W., (1985) Pure Appl. Chem. 57: 603
Gagnon E.G., (1975) J. Electrochem. Soc. 122: 521
Koresh J., Soffer A., (1977) J. Electrochem. Soc. 124: 1379
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TANAHASHI, I. Comparison of the characteristics of electric double-layer capacitors with an activated carbon powder and an activated carbon fiber. J Appl Electrochem 35, 1067–1072 (2005). https://doi.org/10.1007/s10800-005-9002-1
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DOI: https://doi.org/10.1007/s10800-005-9002-1