Affiliation:
1. School of Mechanical and Manufacturing Engineering University of New South Wales Sydney NSW 2052 Australia
2. School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
3. Platforms Division Defence Science and Technology Group Melbourne VIC 3207 Australia
Abstract
AbstractTernary electrodes represent an exciting strategy to substantially enhance the performance of supercapacitors beyond what binary electrodes offer. However, the interplays among ternary constituents and their possible synergies remain poorly understood. This study investigates a ternary electrode design, wherein ferric oxyhydroxide (FeOOH) and magnesium dioxide (MnO2) are co‐deposited onto carbon nanotube (CNT) mats. The results reveal that the ternary electrode demonstrates a 33.3% reduction in internal resistance and a 59% increase in areal capacitance compared to its binary MnO2/CNT counterpart. Furthermore, the ternary electrode achieves a 25% increase in capacitance compared to the combined capacitances of separate MnO2/CNT and FeOOH/CNT electrodes. These findings demonstrate that combining FeOOH and MnO2 can synergistically enhance electrical conductivity and pseudocapacitance beyond their binary counterparts. This design yields a surface capacitance exceeding 3500 mF cm−2 at an active material loading up to 15 mg cm−2. By pairing with a binary FeOOH/CNT electrode, the resulting asymmetric supercapacitor exhibits an operational voltage window to 1.6 V. To demonstrate the potential of the new design, ternary electrodes are integrated into wearable and structural supercapacitors. The new synergistic ternary electrode approach provides a promising avenue for enhancing energy storage capacitance and expanding the scope of energy storage structure applications.
Funder
Australian Research Council
Reference61 articles.
1. Biomorphic structural batteries for robotics
2. Structural batteries take a load off
3. Energy Storage Structural Composites with Integrated Lithium‐Ion Batteries: A Review
4. Charging up Stationary Energy Storage
5. “Iceland's Flygildi emerges from stealth with a birdlike drone and a $2.2 M Seed round ” can be found underhttps://tech.eu/2023/09/26/iceland‐s‐flygildi‐birdlike‐drone‐and‐a‐2‐2m‐seed‐round/(accessed: September 2023).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献