In situ neutron diffraction monitoring of Li7La3Zr2O12 formation: towards a rational synthesis of garnet solid electrolytes

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dc.contributor.authorRao, RPen_AU
dc.contributor.authorGu, Wen_AU
dc.contributor.authorSharma, Nen_AU
dc.contributor.authorPeterson, VKen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorAdams, Sen_AU
dc.date.accessioned2020-12-01T03:23:12Zen_AU
dc.date.available2020-12-01T03:23:12Zen_AU
dc.date.issued2015-04-01en_AU
dc.date.statistics2020-11-10en_AU
dc.description.abstractThe favorable combination of fast-ionic conductivity and high electrochemical stability of Li-stuffed garnet type Li7La3Zr2O12 (LLZ) makes this material a promising candidate for applications as a solid-state electrolyte in high-energy-density batteries. However, a widespread technical use of LLZ is impeded by difficulty in reliable formation and densification of the pure fast-ion conducting phase. The present study of the phase-formation process enables rational fabrication procedures to be devised based on a thorough understanding of the complex phase formation of LLZ. In situ neutron powder diffraction monitoring of the phase formation revealed an influence of the partial melting of precursors on the formation of the fast-ion conducting phase, indicating that in the typical synthesis route LLZ is not formed in a solid-state reaction but from a partial carbonate melt that decomposes on further heating. The cooling rate critically influences lithium ordering and ionic conductivity. © 2015 American Chemical Societyen_AU
dc.identifier.citationRao, R. P., Gu, W., Sharma, N., Peterson, V. K., Avdeev, M., & Adams, S. (2015). In situ neutron diffraction monitoring of Li7La3Zr2O12 formation: towards a rational synthesis of garnet solid electrolytes. Chemistry of Materials, 27(8), 2903–2910. doi:10.1021/acs.chemmater.5b00149en_AU
dc.identifier.issn1520-5126en_AU
dc.identifier.issue8en_AU
dc.identifier.journaltitleChemistry of Materialsen_AU
dc.identifier.pagination2903-2910en_AU
dc.identifier.urihttps://doi.org/10.1021/acs.chemmater.5b00149en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10045en_AU
dc.identifier.volume27en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectPhase transformationsen_AU
dc.subjectLithiumen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectElectric conductivityen_AU
dc.subjectRadioisotope batteriesen_AU
dc.subjectIonic conductivityen_AU
dc.subjectCarbonatesen_AU
dc.titleIn situ neutron diffraction monitoring of Li7La3Zr2O12 formation: towards a rational synthesis of garnet solid electrolytesen_AU
dc.typeJournal Articleen_AU
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