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Behavior of MnO2 containing TiS2 additive as a cathode in aqueous lithium hydroxide electrolyte battery

Minakshi, M.ORCID: 0000-0001-6558-8317, Singh, P. and Mitchell, D. (2007) Behavior of MnO2 containing TiS2 additive as a cathode in aqueous lithium hydroxide electrolyte battery. In: TMS 2007: Linking Science and Technology for Global Solutions, February 25 - March 1, 2007, Orlando, Florida

Abstract

The redox behavior and surface characterization of manganese dioxide (MnO2) containing titanium disulphide (TiS2) as a cathode in aqueous lithium hydroxide (LiOH) electrolyte battery have been investigated. The electrode reaction of MnO2 in this electrolyte is shown to be lithium insertion rather than the usual protonation. MnO2 shows acceptable rechargeability as the battery cathode. The influence of TiS 2 (1,3 and 5 wt. %) additive on the performance of MnO2 as a cathode has been determined. The products formed on reduction of the cathode material have been characterized by scanning electron microscopy (SEM), x-ray photoelectron spectroscopy (XPS), secondary ion mass spectrometry (SIMS) and transmission electron microscopy (TEM). It is found that the presence of TiS2 to ≤ 3 wt. % improves the discharge capacity of MnO 2. However, increasing the additive content above this amount causes a decrease in its discharge capacity.

Item Type: Conference Paper
Murdoch Affiliation: School of Chemical and Mathematical Science
Publisher: The Minerals, Metals & Materials Society
Conference Website: http://www.tms.org/Meetings/Annual-07/AnnMtg07Home...
URI: http://researchrepository.murdoch.edu.au/id/eprint/10429
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