Time-dependent in-situ neutron diffraction investigation of a Li(Co0.16Mn1.84)O4 cathode

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dc.contributor.authorSharma, Nen_AU
dc.contributor.authorReddy, MVen_AU
dc.contributor.authorDu, GDen_AU
dc.contributor.authorAdams, Sen_AU
dc.contributor.authorChowdari, BVRen_AU
dc.contributor.authorGuo, ZPen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2012-01-11T23:11:10Zen_AU
dc.date.available2012-01-11T23:11:10Zen_AU
dc.date.issued2011-11-03en_AU
dc.date.statistics2012-01-12en_AU
dc.description.abstractReal-time in-situ neutron diffraction data reveal for the first time that the Li(Co0.16Mn1.84)O4 cathode undergoes current-free discharge. We find that current-free discharge occurs in a partially charged Li(Co0.16Mn1.84)O4 cathode during its first charge cycle over a period of 11 h resulting in a 44(2)% expansion of the crystal lattice. The rate of change in the lattice parameter during the current-free discharge process is half the rate and more linear than for an applied-current discharge of ?0.5 mA. The origins of current-free discharge are discussed along with the implications of nonequilibrium relaxation processes in in-situ neutron and X-ray diffraction studies. We show that the lattice does not return to the predischarge values after either current-applied or current-free discharge, indicating a limited ability for Li reinsertion (capacity loss) in partially charged Li(Co0.16Mn1.84)O4 batteries. © 2011, American Chemical Societyen_AU
dc.identifier.citationSharma, N., Reddy, M. V., Du, G.D., Adams, S., Chowdari, B. V .R., Guo, Z. P., & Peterson, V. K. (2011). Time-dependent in-situ neutron diffraction investigation of a Li(Co0.16Mn1.84)O4 cathode. Journal of Physical Chemistry C, 115(43), 21473-21480. doi:10.1021/jp2026237en_AU
dc.identifier.govdoc3840en_AU
dc.identifier.issn1932-7447en_AU
dc.identifier.issue43en_AU
dc.identifier.journaltitleJournal of Physical Chemistry Cen_AU
dc.identifier.pagination21473-21480en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/jp2026237en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3981en_AU
dc.identifier.volume115en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectCathodesen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectLattice parametersen_AU
dc.subjectRadioisotope batteriesen_AU
dc.subjectDiffractometersen_AU
dc.titleTime-dependent in-situ neutron diffraction investigation of a Li(Co0.16Mn1.84)O4 cathodeen_AU
dc.typeJournal Articleen_AU
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