Highly dispersed sulfur in a porous aromatic framework as a cathode for lithium–sulfur batteries

Journal Article · Mon Apr 08 00:00:00 EDT 2013 · ChemComm

DOI:https://doi.org/10.1039/c3cc41518j· OSTI ID:1089251

Guo, Bingkun ^[1]; Ben, Teng ^[2]; Bi, Zhonghe ^[1]; Veith, Gabriel M. ^[3]; Sun, Xiao-Guang ^[1]; Qiu, Shilun ^[2]; Dai, Sheng ^[4]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
2. Jilin Univ., Changchun (China). Dept. of Chemistry
3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry

Lithium–sulfur (Li–S) batteries are attractive candidates for transportation applications because of their high energy density (2600 W h kg^$$-$$1). However, Li–S batteries have failed to achieve commercial success, due to the rapid capacity fading with cycling caused mainly by the “shuttle” phenomenon. In this paper, we report a feasible approach to mitigate this issue using a porous aromatic framework (PAF) as a hosting substrate in Li–S batteries. As a cathode material, the composite of PAF with sulfur exhibits high capacity and excellent cycling stability in both a sulfone electrolyte, 1.0 M LiPF6–MiPS, and an ionic liquid electrolyte, 0.5 M LiTFSI–MPPY·TFSI.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1089251
• Journal Information: ChemComm, Vol. 49, Issue 43; ISSN 1359-7345
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English

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