Effects of MWNT and GNF on the Performance of Sulfur Electrode for Li/S Battery

Abstract:

We investigated the effects of multi-walled carbon nanotubes (MWNT) and graphitic nanofibers (GNF) on the performance of sulfur electrode for the lithium/sulfur battery. MWNT and GNF were manufactured by a thermal chemical vapor deposition (CVD) method, and then they were added as an additive in the sulfur electrode. The added sulfur electrodes were composed of 60wt% elemental sulfur (Aldrich), 20wt% acetylene black, 5wt% MWNT or GNF, and 15wt% poly ethylene oxide (PEO) dissolved in acetonitrile. No-added sulfur electrodes were prepared by mixing 60wt% elemental sulfur, 25wt% acetylene black, and 15wt% PEO. The addition of MWNT and GNF was found to give good electrochemical effects in sulfur electrode.

• Periodical: Materials Science Forum (Volumes 486-487)
• Pages: 598-601
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.486-487.598
• Online since: June 2005
• Authors: Jong-Hwa Kim, Young Jin Choi, Sang Sik Jeong, Kwon Koo Cho, Ki Won Kim
• Keywords: Additive, GNF, Lithium/Sulfur Battery, MWNT, Polysulfide, Sulfide

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