Journal article
One-step synthesis of carbon nanosheet-decorated carbon nanofibers as a 3D interconnected porous carbon scaffold for lithium–sulfur batteries
Journal of materials chemistry. A, Materials for energy and sustainability, Vol.5(45), pp.23737-23743
2017
Handle:
https://hdl.handle.net/2376/107384
Abstract
Among the emerging energy storage methods, lithium–sulfur (LIS) batteries have drawn plenty of attention due to their high theoretical energy density, low cost and environmental benignity. Nevertheless, the insulating nature of sulfur and notorious polysulfide shuttling result in low sulfur utilization and short cycling life. In recent years, various carbon structures have been reported as effective sulfur hosts to tolerate volume expansion, prevent polysulfide dissolution and enhance electrical conductivity. It is hard for carbon materials, however, to satisfy all these aspects with a simple structural design. Thus, developing hierarchical carbon structures that serve as a multi-functional host is necessary for high-performance LIS batteries. Herein, we reported a facile method to prepare a three-dimensional carbon nanofiber (3DCNF) through a hydrothermal reaction. With the structural advantages, the 3DCNF and sulfur composite delivered a capacity as high as 1266 and 977 mA h g−1at 0.1 and 0.5 C, respectively. After 500 cycles at 0.5 C, it still retains a capacity of 607 mA h g−1(0.07% capacity fading per cycle), exhibiting excellent cycling capability.
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Details
- Title
- One-step synthesis of carbon nanosheet-decorated carbon nanofibers as a 3D interconnected porous carbon scaffold for lithium–sulfur batteries
- Creators
- Shuo Feng - School of Mechanical and Materials Engineering, Washington State University, Pullman, USAJunhua Song - School of Mechanical and Materials Engineering, Washington State University, Pullman, USAShaofang Fu - School of Mechanical and Materials Engineering, Washington State University, Pullman, USAChengzhou Zhu - Washington State UniversityQiurong Shi - School of Mechanical and Materials Engineering, Washington State University, Pullman, USAMin-Kyu Song - School of Mechanical and Materials Engineering, Washington State University, Pullman, USADan Du - School of Mechanical and Materials Engineering, Washington State University, Pullman, USA, Key Laboratory of Pesticides and Chemical BiologyYuehe Lin - School of Mechanical and Materials Engineering, Washington State University, Pullman, USA
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, Vol.5(45), pp.23737-23743
- Academic Unit
- School of Mechanical and Materials Engineering; Department of Chemistry
- Identifiers
- 99900547370501842
- Language
- English
- Resource Type
- Journal article