| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
E-27: Strategies for the Viability of Li-S Rechargeable Batteries by Using Nanotechnology |
| Author(s) |
Eunho Cha, Sanket Bhoyate, Wonbong Choi |
| On-Site Speaker (Planned) |
Sanket Bhoyate |
| Abstract Scope |
Li-S batteries have a noticeable advantage in terms of energy density over Li-ion batteries. Despite the advantages of Li-S batteries, the useful energy density and the commercial progress of Li-S batteries are still far from satisfactory. This work discusses the method to prepare the electrode materials (both cathodes and anodes) by using three-dimensional carbon nanotubes-sulfur (3D CNTs-S) composite structure and by protecting the Li anode with two-dimensional molybdenum disulfide (2D MoS2) layer. As a result, high areal and specific capacities of 8.8 mAh cm−2 and 1068 mAh g−1, respectively, with the sulfur loading of ~7 mg cm−2 are demonstrated; furthermore, the cells operated at a current density of ~6 mA cm−2 (0.5 C) for over 500 cycles with the minimum about of electrolyte (< 6 μL mg−1). This translates to the specific energy and power densities of ~550 Wh kg−1 and ~300 W kg−1, respectively. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |