Specific Mass and Energy-Storage Properties of Carbon Electrodes Based on NORIT DLC SUPRA 50 Activated Carbon
V. V. Chernyavina, A. G. Berezhnaya
Российский электрохимический журнал
https://doi.org/10.1134/S1023193518110022
The effect of the carbon-material specific mass on the electrochemical parameters of electrodes for supercapacitors on neutral aqueous electrolytes is studied. It is shown that the highest specific capacitance of 11 F/g is observed for electrodes with the specific mass of 1 mg/cm2. These electrodes are stable at the potential scan rate from 2 to 600 mV/s, in contrast to electrodes with the specific mass of 6 mg/cm2. As the power increases, the decrease in the specific energy of the electrode with the mass of 1 mg/cm2 is less pronounced as compared with the electrode with the mass of 6 mg/cm2. The specific energy of the former electrode is 8 W h/kg for the specific power of 20000 W/kg, whereas for the specific energy of the latter electrode is 5 W h/kg for the specific power of 2000 W/kg.
- Southern Federal University, Rostov-on-Don, 344000, RussiaV. V. Chernyavina & A. G. Berezhnaya
- Bonnefoia, L., Simona, P., Fauvarquea, J.F., Sarrazinb, C., Sarraub, J.F., and Dugasta, A., Electrode compositions for carbon power supercapacitors, J. Power Sources, 1999, vol. 80, p. 149.
- Rychagov, A.Yu., Volfkovich, Yu.M., Vorotyntsev, M. A., Kvacheva, L.D., Konev D.V., Krestinin N.V., Kryazhev, Yu.G., Kuznetsov, V.L., Kukushkina, Yu.A., Mukhin, V.M., Sokolov, V.V., and Chernobrodov, S.P., Prospective electrode materials for super-capacitors, Elektrokhim. Energ., 2012, vol. 12, no. 4, p. 167.
- Salitra, G., Soffer, A., Eliad, L., Cohen, Y., and Aurbach, D., Carbon electrodes for double-layer capacitors. I. Relations between ion and pore dimensions, J. Electrochem. Soc., 2000, vol. 147, p. 2486.
- Atamanyuk, I.N., Vervikishko, D.E., Grigorenko, A.V., Sametov, A.A., Shkol’nikov, E.I., and Yanilkin, I.V., Study of the influence of the electrodes production technological features on the electrochemical characteristics of super-capacitor with the aqueous electrolyte, Elektrokhim. Energ., 2014, vol. 14, no. 1, p. 3.
- Frackowiak, E. and Béguin, F., Carbon materials for the electrochemical storage of energy in capacitors, Carbon, 2001, vol. 39, p. 937.
- Gamby, J., Taberna, P.L., Simon, P., Fauvarque, J.F., and Chesneau, M., Studies and charactersations of various activated carbons used for carbon/carbon supercapacitors, J. Power Sources, 2001, vol. 101, p. 109.
- Burke, A.F. and Miller, J.R., Electrochemical capacitors: challenges and opportunities for real-world applications, Proc. Advanced Capacitor Word Summit, USA, San Diego, 2009, p. 5.
- Radeke, K.H., Backhaus, K.O., and Swiatkowski, A., Electrical conductivity of activated carbons, Carbon, 1991, vol. 29, p. 122.
- Beidaghi, M., Wang, Z., Gu, L., and Wang, C., Electrostatic spray deposition of graphene nanoplatelets for high-power thin-film supercapacitor electrodes, J. Solid State Electrochem., 2012, vol. 16, p. 3341.
- Xing, W., Qiao, S.Z., Ding, R.G., Li, F., Lu, G.Q., and Yan, Z.F., Superior electric double layer capacitors using ordered mesoporous carbons, Carbon, 2006, vol. 44, p. 216.
- Conway, B.E., Electrochemical Supercapacitors—Scientific Fundamentals and Technological Applications, NewYork: Kluwer Academic/Plenum, 1999.