Characterisation of chemically lithiated heat-treated electrolytic manganese dioxide

Dose, WM; Lehr, J; Donne, SW

Abstract

Heat treated manganese dioxide is partially lithiated using butyl-lithium to determine the changes in crystal structure, chemical composition and morphology upon reduction, as a means of simulating its discharge behaviour in a non-aqueous battery cathode. As reduction proceeds, and lithium ions are inserted into the heat treated electrolytic manganese dioxide (EMD) structure, the material undergoes a phase transition to LiMn2O4. This new phase is further reduced to Li2Mn2O4. Reduction initially results in a 56% decrease in the surface area of the material; however, at higher degrees of reduction a slight increase in this value is observed, as a consequence of the strain placed on the lattice through continued lithium insertion.

Citation

Dose, W., Lehr, J., & Donne, S. (2012). Characterisation of chemically lithiated heat-treated electrolytic manganese dioxide. Materials Research Bulletin, 47(7), 1827-1834. https://doi.org/10.1016/j.materresbull.2011.05.027

• Journal Article Type: Article
• Acceptance Date: May 18, 2011
• Online Publication Date: May 26, 2011
• Publication Date: Jul 1, 2012
• Deposit Date: Aug 11, 2021
• Journal: Materials Research Bulletin
• Print ISSN: 0025-5408
• Publisher: Elsevier
• Volume: 47
• Issue: 7
• Pages: 1827-1834
• DOI: https://doi.org/10.1016/j.materresbull.2011.05.027
• Publisher URL: https://doi.org/10.1016/j.materresbull.2011.05.027
• Related Public URLs: http://www.journals.elsevier.com/materials-research-bulletin/