Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

TEM characterization of MnO2 cathode in an aqueous lithium secondary battery

Minakshi, M.ORCID: 0000-0001-6558-8317, Mitchell, D., Singh, P. and Thurgate, S. (2006) TEM characterization of MnO2 cathode in an aqueous lithium secondary battery. In: Australian Institute of Physics 17th National Congress, 3 - 8 December, Brisbane, Australia



The discharge characteristics of manganese dioxide cathode in the presence of small amounts (1, 3 and 5 wt. %) of titanium disulphide (TiS2) additive has been investigated in an alkaline cell using aqueous lithium hydroxide as the electrolyte. The incorporation of small amounts of TiS2 additives into manganese dioxide (MnO2) was found to improve the battery discharge capacity from 150 to 270 mAh/g. However, increasing the additive from 3 to 5 wt. % causes a decrease in the discharge capacity. Hence, the objective is to gain insight into the role of TiS2 in MnO2 and its mechanism. For this purpose, we have used transmission electron microscopy (TEM), electron energy loss spectroscopy (EELS) and secondary ion mass spectrometry (SIMS). The valence state determination and the depth profile analysis of the discharged MnO2 were performed using EELS and SIMS techniques.

Item Type: Conference Paper
Murdoch Affiliation: School of Chemical and Mathematical Science
Item Control Page Item Control Page


Downloads per month over past year