Direct evidence of concurrent solid-solution and two-phase reactions and the nonequilibrium structural eEvolution of LiFePO(4)

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dc.contributor.authorSharma, Nen_AU
dc.contributor.authorGuo, XWen_AU
dc.contributor.authorDu, GDen_AU
dc.contributor.authorGuo, ZPen_AU
dc.contributor.authorWang, JZen_AU
dc.contributor.authorWang, ZXen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2014-04-11T06:11:03Zen_AU
dc.date.available2014-04-11T06:11:03Zen_AU
dc.date.issued2012-05-09en_AU
dc.date.statistics2014-04-11en_AU
dc.description.abstractLithium-ion batteries power many portable devices and in the future are likely to play a significant role in sustainable-energy systems for transportation and the electrical grid. LiFePO(4) is a candidate cathode material for second-generation lithium-ion batteries, bringing a high rate capability to this technology. LiFePO(4) functions as a cathode where delithiation occurs via either a solid-solution or a two-phase mechanism, the pathway taken being influenced by sample preparation and electrochemical conditions. The details of the delithiation pathway and the relationship between the two-phase and solid-solution reactions remain controversial. Here we report, using real-time in situ neutron powder diffraction, the simultaneous occurrence of solid-solution and two-phase reactions after deep discharge in nonequilibrium conditions. This work is an example of the experimental investigation of nonequilibrium states in a commercially available LiFePO(4) cathode and reveals the concurrent occurrence of and transition between the solid-solution and two-phase reactions. © 2012, American Chemical Society.en_AU
dc.identifier.citationSharma, N., Guo, X. W., Du, G. D., Guo, Z. P., Wang. J. Z., Wang, Z. X., & Peterson, V. K. (2012). Direct evidence of concurrent solid-solution and two-phase reactions and the nonequilibrium structural eEvolution of LiFePO(4). Journal of the American Chemical Society, 134(18), 7867-7873. doi:10.1021/ja301187uen_AU
dc.identifier.govdoc4455en_AU
dc.identifier.issn0002-7863en_AU
dc.identifier.issue18en_AU
dc.identifier.journaltitleJournal of the American Chemical Societyen_AU
dc.identifier.pagination7867-7873en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/ja301187uen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5425en_AU
dc.identifier.volume134en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectLithiumen_AU
dc.subjectElectric batteriesen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectElectrodesen_AU
dc.subjectAmbient temperatureen_AU
dc.subjectX-ray lasersen_AU
dc.titleDirect evidence of concurrent solid-solution and two-phase reactions and the nonequilibrium structural eEvolution of LiFePO(4)en_AU
dc.typeJournal Articleen_AU
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