Permselective Graphene Oxide Membrane for Highly Stable and Anti-Self-Discharge Lithium–Sulfur Batteries
Tsinghua University · Institute of Coal Chemistry · +1 more institution
Abstract
Lithium-sulfur batteries hold great promise for serving as next generation high energy density batteries. However, the shuttle of polysulfide induces rapid capacity degradation and poor cycling stability of lithium-sulfur cells. Herein, we proposed a unique lithium-sulfur battery configuration with an ultrathin graphene oxide (GO) membrane for high stability. The oxygen electronegative atoms modified GO into a polar plane, and the carboxyl groups acted as ion-hopping sites of positively charged species (Li(+)) and rejected the transportation of negatively charged species (Sn(2-)) due to the electrostatic interactions. Such electrostatic repulsion and physical inhibition largely decreased the transference of…
Citation impact
- FWCI
- 57.01
- Percentile
- 100%
- References
- 65
Authors
6Topics & keywords
- Graphene
- Materials science
- Oxide
- Membrane
- Lithium–sulfur battery
- Lithium (medication)
- Sulfur
- Nanotechnology