Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/11382
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dc.contributor.authorGoonetilleke, D-
dc.contributor.authorSharma, N-
dc.contributor.authorPang, WK-
dc.contributor.authorPeterson, VK-
dc.contributor.authorPetibon, R-
dc.contributor.authorLi, J-
dc.contributor.authorDahn, JR-
dc.date.accessioned2021-08-17T03:42:44Z-
dc.date.available2021-08-17T03:42:44Z-
dc.date.issued2018-12-17-
dc.identifier.citationGoonetilleke, D., Sharma, N., Pang, W. K., Peterson, V. K., Petibon, R., Li, J., & Dahn, J. R. (2018). Structural evolution and high-voltage structural stability of Li(NixMnyCoz) O2 electrodes. Chemistry of Materials, 31(2), 376-386. doi:10.1021/acs.chemmater.8b03525en_US
dc.identifier.issn1520-5002-
dc.identifier.urihttps://doi.org/10.1021/acs.chemmater.8b03525en_US
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11382-
dc.description.abstractPositive electrode materials remain a limiting factor for the energy density of lithium-ion batteries (LIBs). Improving the structural stability of these materials over a wider potential window presents an opportune path to higher energy density LIBs. Herein, operando neutron diffraction is used to elucidate the relationship between the structural evolution and electrochemical behavior for a series of Li-ion pouch cells containing Li(NixMnyCoz)O2 (x + y + z = 1) electrode chemistries. The structural stability of these electrodes during charge and discharge cycling across a wide potential window is found to be influenced by the ratio of transition-metal atoms in the material. Of the electrodes investigated in this study, the Li(Ni0.4Mn0.4Co0.2)O2 composition exhibits the smallest magnitude of structural expansion and contraction during cycling while also providing favorable structural stability at high voltage. Greater structural change was observed in electrodes with a higher Ni content, while decreasing inversely to the Ni and Co content in the positive electrode. The combination of structural and electrochemical characterization of a wide range of NMC compositions provides useful insight for the design and application of ideal electrode compositions for long-term cycling and structural stability during storage at the charged state. © 2018 American Chemical Societyen_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.subjectCrystal latticesen_US
dc.subjectElectrodesen_US
dc.subjectElectrochemical cellsen_US
dc.subjectTransition elementsen_US
dc.subjectMaterialsen_US
dc.subjectElectric potentialen_US
dc.titleStructural evolution and high-voltage structural stability of Li(NixMnyCoz)O2 electrodesen_US
dc.typeJournal Articleen_US
dc.date.statistics2021-08-12-
Appears in Collections:Journal Articles

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