The storage degradation of an 18650 commercial cell studied using neutron powder diffraction

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dc.contributor.authorLee, PHen_AU
dc.contributor.authorWu, SHen_AU
dc.contributor.authorPang, WKen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2021-08-25T04:16:06Zen_AU
dc.date.available2021-08-25T04:16:06Zen_AU
dc.date.issued2018-01-15en_AU
dc.date.statistics2021-08-24en_AU
dc.description.abstractCommercial 18650 lithium ion cells containing a blended positive electrode of layered LiNi0.5Mn0.3Co0.2O2 and spinel Li1.1Mn1.9O4 alongside a graphite negative electrode were stored at various depth-of-discharge (DoD) at 60 °C for 1, 2, 4, and 6 months. After storage, the cells were cycled at C/25 at 25 °C between 2.75 and 4.2 V for capacity determination and incremental capacity analysis (ICA). In addition to ICA analysis, the mechanism for capacity fade was investigated by combining the results of neutron powder diffraction under in-situ and operando conditions, in conjunction with post-mortem studies of the electrodes using synchrotron X-ray powder diffraction and inductively-coupled plasma optical emission spectroscopy. Among the cells, those stored at 25% DoD suffered the highest capacity fade due to their higher losses of active Li, NMC, and LMO than cells stored at other DoD. The cells stored at 0% DoD shows second high capacity fade because they exhibit the highest of active LMO and graphite anode among the stored cells and higher losses of active Li and NMC than cells stored at 50% DoD. © 2017 Elsevier B.Ven_AU
dc.identifier.citationLee, P.-H., Wu, S.-H., Pang, W. K., & Peterson, V. K. (2018). The storage degradation of an 18650 commercial cell studied using neutron powder diffraction. Journal of Power Sources, 374, 31-39. doi:10.1016/j.jpowsour.2017.11.021en_AU
dc.identifier.issn0378-7753en_AU
dc.identifier.journaltitleJournal of Power Sourcesen_AU
dc.identifier.pagination31-39en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2017.11.021en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11498en_AU
dc.identifier.volume374en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCapacityen_AU
dc.subjectEnergy lossesen_AU
dc.subjectLithiumen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectElectrodesen_AU
dc.subjectElectric batteriesen_AU
dc.titleThe storage degradation of an 18650 commercial cell studied using neutron powder diffractionen_AU
dc.typeJournal Articleen_AU
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