Enhanced performance of SnO2 xerogel electrochemical capacitor prepared by novel crystallization process
Journal
Journal of Power Sources
Journal Volume
109
Journal Issue
2
Pages
418-421
Date Issued
2002
Author(s)
Abstract
The performance of both blank and RuO2-impregnated SnO2 (Sb-6 mol%) xerogel electrodes are enhanced significantly by improved crystallinity via a novel crystallization process, which effectively suppresses grain coarsening and hence allows the xerogel to be crystallized at high temperatures while maintaining a high surface area. The improved SnO2 electrodes show maximum specific capacitances which exceed 10 F g-1 in 1 M KOHaq at 200 mV s-1 after firing at 800 °C. The enhancement becomes increasingly pronounced with increasing charge-discharge rate due to improved oxide conductivity. © 2002 Elsevier Science B.V. All rights reserved.
SDGs
Type
journal article