Graphene Oxide as a Sulfur Immobilizer in High Performance Lithium/Sulfur Cells
Citations Over TimeTop 1% of 2011 papers
Abstract
The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Here, we use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach enabled us to obtain a uniform and thin (around tens of nanometers) sulfur coating on graphene oxide sheets by a simple chemical reaction-deposition strategy and a subsequent low-temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides enabled us to demonstrate lithium/sulfur cells with a high reversible capacity of 950-1400 mA h g(-1), and stable cycling for more than 50 deep cycles at 0.1C (1C = 1675 mA g(-1)).
Related Papers
- → Hollow carbon spheres with TiO2 encapsulated sulfur and polysulfides for long-cycle lithium-sulfur batteries(2017)67 cited
- → Polysulfide as a possible substrate for sulfur-reducing bacteria(1993)86 cited
- → Vapor Growth Carbon Fiber Felt as an Efficient Interlayer for Trapping Polysulfide in Lithium-Sulfur Battery(2018)7 cited
- Chemistry of Carbonate-Sulfur Flux(1994)
- → Liquid Metal as a Self-Healing and Polysulfide Trapping Binder for Lithium Sulfur Battery(2021)