Electrochemical Parameters of Supercapacitors on a Neutral Aqueous Electrolyte with Various Electrode Materials

Russian Journal of Electrochemistry - Activated carbon Norit Supra DLS 30 and carbon fabrics L-03 and T-040 were studied as electrode materials for supercapacitors with aqueous sodium sulfate. The...     

Nanoparticles of Nickel Hexacyanoferrate Derivatives as the Components of Electrode Materials for Electrochemical Capacitors

Russian Journal of Electrochemistry - Nickel–potassium hexacyanoferrate (KNiHCF) and its analogues (NaKNiHCF) with different Na : K ratio are synthesized by chemical coprecipitation....     

Specific Mass and Energy-Storage Properties of Carbon Electrodes Based on NORIT DLC SUPRA 50 Activated Carbon

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.