Enhanced performance of sulfur-infiltrated bimodal mesoporous carbon foam by chemical solution deposition as cathode materials for lithium sulfur batteries
SCIE
SCOPUS
- Title
- Enhanced performance of sulfur-infiltrated bimodal mesoporous carbon foam by chemical solution deposition as cathode materials for lithium sulfur batteries
- Authors
- Jeong, T.-G.; Chun, J.; Cho, B.-W.; Lee, J.; KIM, YONG TAE
- Date Issued
- 2017-02
- Publisher
- Nature Publishing Group
- Abstract
- The porous carbon matrix is widely recognized to be a promising sulfur reservoir to improve the cycle life by suppressing the polysulfide dissolution in lithium sulfur batteries (LSB). Herein, we synthesized mesocellular carbon foam (MSUF-C) with bimodal mesopore (4 and 30 nm) and large pore volume (1.72 cm 2 /g) using MSUF silica as a template and employed it as both the sulfur reservoir and the conductive agent in the sulfur cathode. Sulfur was uniformly infiltrated into MSUF-C pores by a chemical solution deposition method (MSUF-C/S CSD) and the amount of sulfur loading was achieved as high as 73% thanks to the large pore volume with the CSD approach. MSUF-C/S CSD showed a high capacity (889 mAh/g after 100 cycles at 0.2 C), an improved rate capability (879 mAh/g at 1C and 420 mAh/g at 2C), and a good capacity retention with a fade rate of 0.16% per cycle over 100 cycles.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/92132
- DOI
- 10.1038/srep42238
- ISSN
- 2045-2322
- Article Type
- Article
- Citation
- Scientific Reports, vol. 7, 2017-02
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