- Title
- Characterisation of chemically lithiated heat-treated electrolytic manganese dioxide
- Creator
- Dose, Wesley; Lehr, Joshua; Donne, Scott W.
- Relation
- Materials Research Bulletin Vol. 47, Issue 7, p. 1827-1834
- Publisher Link
- http://dx.doi.org/10.1016/j.materresbull.2011.05.027
- Publisher
- Pergamon Press
- Resource Type
- journal article
- Date
- 2012
- Description
- 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.
- Subject
- lithiated; heat-treated; electrolytic manganese dioxide; lithium insertion
- Identifier
- http://hdl.handle.net/1959.13/1305803
- Identifier
- uon:21102
- Identifier
- ISSN:0025-5408
- Language
- eng
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