High-Entropy MXene as Bifunctional Mediator toward Advanced Li–S Full Batteries
Shaanxi University of Science and Technology · University of Electronic Science and Technology of China · +3 more institutions
Abstract
The development of high-energy-density Li–S batteries (LSBs) is still hindered by the disturbing polysulfide shuttle effect. Herein, with clever combination between “high entropy” and MXene, an HE-MXene doped graphene composite containing multiple element quasi-atoms as bifunctional mediator for separator modification (HE-MXene/G@PP) in LSBs is proposed. The HE-MXene/G@PP offers high electrical conductivity for fast lithium polysulfide (LiPS) redox conversion kinetics, abundant metal active sites for efficient chemisorption with LiPSs, and strong lipophilic characteristics for uniform Li+ deposition on lithium metal surface. As demonstrated by DFT theoretical calculations, in situ Raman, and DRT results…
Citation impact
- FWCI
- 40.99
- Percentile
- 100%
- References
- 49
Authors
11- QLQi Liang
Shaanxi University of Science and Technology
- SWSizhe WangCorresponding
University of Electronic Science and Technology of China, Quzhou University, Shaanxi University of Science and Technology
- XLXiaomeng Lü
Shanghai University
- XJXiaohua Jia
Shaanxi University of Science and Technology
- JYJin Yang
Shaanxi University of Science and Technology
Topics & keywords
- Polysulfide
- Materials science
- Bifunctional
- Chemisorption
- Overpotential
- Chemical engineering
- Cathode
- Graphene
- Affordable and clean energy