An electron energy loss spectroscopy and electron diffraction study of the Pmnb polymorph of Li2MnSiO4

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dc.contributor.authorGummow, RJen_AU
dc.contributor.authorBlackford, MGen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorHe, Yen_AU
dc.date.accessioned2015-09-30T01:39:20Zen_AU
dc.date.available2015-09-30T01:39:20Zen_AU
dc.date.issued2013-02-25en_AU
dc.date.statistics2015-09-24en_AU
dc.description.abstractThe Mn valency and the crystallinity of Li2MnSiO4 cathodes (Pmnb form) were examined with electron energy-loss spectroscopy (EELS) and selected area electron diffraction (SAED) both before and after electrochemical lithium extraction. A decrease in the crystallinity of the delithiated charged cathode particles compared to the as-prepared material was observed. The decrease in crystallinity varied from particle to particle. EELS analysis showed that the non-uniform decrease in crystallinity was due to a non-uniform extraction of lithium from the particles. The observed decrease in discharge capacity of the Pmnb polymorph of Li2MnSiO4 with cycling was attributed to the progressive loss of crystallinity and the structural collapse of Li diffusion pathways. © 2012, Elsevier B.V.en_AU
dc.identifier.citationGummow, R. J., Blackford, M. G., Lumpkin, G. R., & He, Y. (2013). An electron energy loss spectroscopy and electron diffraction study of the Pmnb polymorph of Li2MnSiO4. Journal of Alloys and Compounds, 551, 521-526. doi:10.1016/j.jallcom.2012.11.013en_AU
dc.identifier.govdoc6113en_AU
dc.identifier.issn0925-8388en_AU
dc.identifier.journaltitleJournal of Alloys and Compoundsen_AU
dc.identifier.pagination521-526en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jallcom.2012.11.013en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6274en_AU
dc.identifier.volume551en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCrystal structureen_AU
dc.subjectManganeseen_AU
dc.subjectElectron diffractionen_AU
dc.subjectLithiumen_AU
dc.subjectElectric potentialen_AU
dc.subjectCathodesen_AU
dc.titleAn electron energy loss spectroscopy and electron diffraction study of the Pmnb polymorph of Li2MnSiO4en_AU
dc.typeJournal Articleen_AU
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