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Lean-electrolyte lithium-sulfur electrochemical cells with high-loading carbon nanotube/nanofiber-polysulfide
1Department of Materials Science and Engineering, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan. SHChung@gs.ncku.edu.tw.
Abstract:
A carbon nanotube/nanofiber (CNT/CNF) composite is applied as a cathode substrate to develop a high-loading polysulfide cathode (8.64 mg cm-2, 68 wt% sulfur). The high-loading CNT/CNF-polysulfide cathode demonstrates high energy densities (11.4-15.7 mW h cm-2) and long-term cyclability (200 cycles) with low electrolyte-to-sulfur (E/S) ratios of 4-7 μL mg-1.

