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Novel microporous carbon prepared from discarded clothes as host materials for high performance lithium-sulfur battery
- Source :
- Materials Letters. 232:122-125
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Novel microporous carbon materials (DCMC) with excellent electron conductivity and ultrahigh surface area (1896.9 m 2 g −1 ) are successfully prepared from discarded clothes. The porous carbon-encapsulated sulfur composites were synthesized by a feasible melting process and used as host materials for lithium sulfur batteries. Because of the unique microporous, ultrahigh surface area and irregular wrinkled surface coexisting structure, the resulting microporous carbon/sulfur (DCMC/S) composite cathode possesses a good rate capability and long-term cycling performance. The initial discharge capacity of the DCMC2/S composite electrode with 74.3 wt% sulfur content is 1082.6 mAh g −1 at a current rate of 0.2 C. At a higher current rate of 1 C, it possesses excellent cyclic performance and retained a capacity of 422.8 mAh g −1 after 500 cycles with a low capacity fading rate of 0.11% per cycle. The coulombic efficiency remains over 98% during cycling.
- Subjects :
- Materials science
Mechanical Engineering
chemistry.chemical_element
Lithium–sulfur battery
02 engineering and technology
Microporous material
Conductivity
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Sulfur
0104 chemical sciences
Chemical engineering
chemistry
Mechanics of Materials
Composite electrode
General Materials Science
0210 nano-technology
Porosity
Carbon
Faraday efficiency
Subjects
Details
- ISSN :
- 0167577X
- Volume :
- 232
- Database :
- OpenAIRE
- Journal :
- Materials Letters
- Accession number :
- edsair.doi...........0dae247fc1fc9df3b6ba4b8ebb3fae94