Royal Society of Chemistry, Chemical Communications, 43(49), p. 4905, 2013
DOI: 10.1039/c3cc41518j
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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. Here, 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.