Novel nanosized adsorbing sulfur composite cathode materials for the advanced secondary lithium batteries

• Published in: Electrochimica acta Vol. 51; no. 7; pp. 1330 - 1335
• Main Authors: Zheng, W., Liu, Y.W., Hu, X.G., Zhang, C.F.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 05-01-2006; Elsevier
• Subjects: Applied sciences; Cathode material; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Lithium battery; Multi-walled carbon nanotubes; Nanocomposite; Sublimed sulfur; Sublimed sulfur; Lithium battery; Cathode material; Nanocomposite; Multi-walled carbon nanotubes; Pore structure; Carbon nanotubes; Secondary cell; Polysulfides; Electrode material; Discharge charge cycle; Lithium sulfur batteries; Multiwalled nanotube; Organic electrolyte storage battery; Composite electrode; Surface properties; Surface area; Specific capacity; Electrical characteristic
• ISSN: 0013-4686; 1873-3859
• DOI: 10.1016/j.electacta.2005.06.021

A novel conductive sulfur-containing nanocomposite cathode material was synthesized by heating the mixture of sublimed sulfur and multi-walled carbon nanotubes (MWNTs) in certain conditions. The cathode with MWNTs–sulfur nanocomposite (MSN) material shows the improvement of not only the charge–discharge capacity but also cycle durability. From the results, it is confirmed that the MWNTs shows a vital role on adsorbing sublimed sulfur and the polysulfides within the cathode and is an excellent electric conductor for the lithium–sulfur rechargeable system. It can effectively prevent the shuttle behavior of the lithium–sulfur battery.