Non-equilibrium structural evolution of the lithium-rich Li1+yMn2O4 cathode within a battery

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dc.contributor.authorSharma, Nen_AU
dc.contributor.authorYu, DHen_AU
dc.contributor.authorZhu, Yen_AU
dc.contributor.authorWu, Yen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2013-09-19T00:44:09Zen_AU
dc.date.available2013-09-19T00:44:09Zen_AU
dc.date.issued2013-03-12en_AU
dc.date.statistics2013-09-19en_AU
dc.description.abstractLithium-ion batteries are undergoing rapid development to meet the energy demands of the transportation and renewable energy-generation sectors. The capacity of a lithium-ion battery is dependent on the amount of lithium that can be reversibly incorporated into the cathode. This work directly quantifies the time- and current-dependent lithium transfer within a cathode functioning under conventional charge?discharge cycling. We examine Li1+yMn2O4 under real working conditions using in situ neutron powder diffraction and link the atomic-scale structure to the battery performance. The lithium location and content, oxygen positional parameter, and lattice parameter of the cathode are measured and linked to the battery?s charge/discharge characteristics. Lithium insertion (discharge) differs from extraction (charge), a feature that may explain the relative ease of discharge (compared with charge) of this material. An atomic-scale understanding of cathode functionality, such as revealed here, will direct improvements in battery performance at both the practical and the fundamental level. © 2013, American Chemical Society.en_AU
dc.identifier.citationSharma, N., Yu, D., Zhu, Y., Wu, Y., & Peterson, V. K. (2013). Non-equilibrium structural evolution of the lithium-rich Li1+yMn2O4 cathode within a battery. Chemistry of Materials, 25 (5), 754-760. doi:10.1021/cm303851wen_AU
dc.identifier.govdoc5165en_AU
dc.identifier.issn0897-4756en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleChemistry of Materialsen_AU
dc.identifier.pagination754-760en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/cm303851wen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4720en_AU
dc.identifier.volume25en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Society.en_AU
dc.subjectDiffractometersen_AU
dc.subjectLithiumen_AU
dc.subjectCathodesen_AU
dc.subjectManganeseen_AU
dc.subjectNeutronsen_AU
dc.subjectPowdersen_AU
dc.titleNon-equilibrium structural evolution of the lithium-rich Li1+yMn2O4 cathode within a batteryen_AU
dc.typeJournal Articleen_AU
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