| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials
|
| Presentation Title |
High-Endurance Zinc Ion Supercapacitors With Wide Temperature Tolerance |
| Author(s) |
Tse Nga Ng |
| On-Site Speaker (Planned) |
Tse Nga Ng |
| Abstract Scope |
Metal ion capacitors are electrochemical cells that bridge the divide between batteries and electrochemical capacitors, providing high energy densities at rapid charging or discharging rates. The first metal ion capacitors were based on lithium and sodium ions, but potential safety hazards prompted the search for other alternatives. Zinc ion supercapacitors (ZICs) emerge as an appealing choice with advantages of environmental safety, a high theoretical capacity, and an abundance of zinc reserves. However, ZICs are currently limited by the imbalance in the utilization ratio between the anode and the cathode. This study presents a new scalable approach to tackle the dendritic issue at the anode and increase the capacity of the cathode by redox polymers, to achieve anode-free supercapacitors with more balanced utilization ratios and a wide temperature tolerance. The mechanistic findings in this report provide the design guidelines for ZICs with high cumulative capacities and extended cycle lifetime.
|
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Polymers, Sustainability |