In operando neutron diffraction study of the temperature and current rate-dependent phase evolution of LiFePO4 in a commercial 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.accessioned2021-08-26T22:36:27Zen_AU
dc.date.available2021-08-26T22:36:27Zen_AU
dc.date.issued2017-02-28en_AU
dc.date.statistics2021-08-26en_AU
dc.description.abstractIn operando NPD data of electrodes in lithium-ion batteries reveal unusual LiFePO4 phase evolution after the application of a thermal step and at high current. At low current under ambient conditions the LiFePO4 to FePO4 two-phase reaction occurs during the charge process, however, following a thermal step and at higher current this reaction appears at the end of charge and continues into the next electrochemical step. The same behavior is observed for the FePO4 to LiFePO4 transition, occurring at the end of discharge and continuing into the following electrochemical step. This suggests that the bulk (or the majority of the) electrode transformation is dependent on the battery's history, current, or temperature. Such information concerning the non-equilibrium evolution of an electrode allows a direct link between the electrode's functional mechanism that underpins lithium-ion battery behavior and the real-life operating conditions of the battery, such as variable temperature and current, to be made. Crown Copyright©2016 Published by Elsevier B.Ven_AU
dc.identifier.citationSharma, N., Yu, D. H., Zhu, Y., Wu, Y., & Peterson, V. K. (2017). In operando neutron diffraction study of the temperature and current rate-dependent phase evolution of LiFePO4 in a commercial battery. Journal of Power Sources, 342, 562-569. doi:10.1016/j.jpowsour.2016.12.048en_AU
dc.identifier.issn0378-7753en_AU
dc.identifier.journaltitleJournal of Power Sourcesen_AU
dc.identifier.pagination562-569en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2016.12.048en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11521en_AU
dc.identifier.volume342en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectElectrodesen_AU
dc.subjectReaction kineticsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectElectric batteriesen_AU
dc.subjectPhase transformationsen_AU
dc.subjectElectrochemistryen_AU
dc.titleIn operando neutron diffraction study of the temperature and current rate-dependent phase evolution of LiFePO4 in a commercial batteryen_AU
dc.typeJournal Articleen_AU
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