About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2023
|
Presentation Title |
D-13: Surface Engineered TiO2 Nanostructures as Effective Cathode Host Materials in Li-S Batteries |
Author(s) |
John Z. Barlow, Ruigang Wang |
On-Site Speaker (Planned) |
John Z. Barlow |
Abstract Scope |
One of the greatest challenges facing our world today is the storage and distribution of electrical energy. To address this issue, we are investigating the use of titanium oxide nanotubes as a polar host material to stabilize lithium-sulfur batteries. Lithium sulfur batteries boast a theoretical energy density much greater than current lithium-ion batteries (1675 mAh/g vs 372 mAh/g). They are currently limited by phase instability of the sulfur cathode, leading to capacity loss due to the shuttling effect. Using titanium oxide nanotubes to confine the cathode chemically and physically has shown to be an effective solution. Testing of these cells is still underway, however initial results at high charge rates have shown promising results, an average energy density of 555 mAh/g at a charging rate of 1C (3.216 mA), with an energy density of 524 mAh/g after 300 cycles, showing an only 0.019% capacity loss per cycle. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Nanotechnology, Electronic Materials |