Microstructural and spectroscopic investigations into the effect of CeO2 additions on the performance of a MnO2 aqueous rechargeable battery

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dc.contributor.authorMinakshi, Men_AU
dc.contributor.authorMitchell, DRGen_AU
dc.contributor.authorCarter, MLen_AU
dc.contributor.authorAppadoo, Den_AU
dc.contributor.authorNallathamby, Ken_AU
dc.date.accessioned2010-04-07T06:04:32Zen_AU
dc.date.accessioned2010-04-30T05:08:15Zen_AU
dc.date.available2010-04-07T06:04:32Zen_AU
dc.date.available2010-04-30T05:08:15Zen_AU
dc.date.issued2009-04-30en_AU
dc.date.statistics2009-04-30en_AU
dc.description.abstractThe influence of CeO2 additions on the electrochemical behaviour of the MnO2 cathode in a Zn–MnO2 battery using lithium hydroxide (LiOH) as an electrolyte is investigated using microscopy and spectroscopic techniques. The results showed that such additions greatly improve the discharge capacity of the battery (from 155 to 190 mAh g−1) but only from the second discharge cycle onwards. Capacity fade with subsequent cycling is also greatly reduced. With an aim to understand the role of CeO2 on the discharge–charge characteristics of MnO2 and its mechanism, we have used a range of microscopy, spectroscopy and diffraction-based techniques to study the process. The CeO2 is not modified by multiple discharged and charged cycles. The CeO2 may enhance the discharge–charge performance of the battery by raising the oxygen evolution potential during charging but does not take part directly in the redox reaction. © 2009, Elsevier Ltd.en_AU
dc.identifier.citationMinakshi, M., Mitchell, D. R. G., Carter, M. L., Appadoo, D., & Nallathamby, K. (2009). Microstructural and spectroscopic investigations into the effect of CeO2 additions on the performance of a MnO2 aqueous rechargeable battery. Electrochimica Acta, 54(12), 3244-3249. doi:10.1149/1.3561764en_AU
dc.identifier.govdoc1530en_AU
dc.identifier.issn0013-4686en_AU
dc.identifier.issue12en_AU
dc.identifier.journaltitleElectrochimica Actaen_AU
dc.identifier.pagination3244-3249en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.electacta.2008.12.029en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3086en_AU
dc.identifier.volume54en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCerium oxidesen_AU
dc.subjectManganeseen_AU
dc.subjectBattery chargingen_AU
dc.subjectLithium hydroxidesen_AU
dc.subjectBattery charge stateen_AU
dc.subjectMicroscopyen_AU
dc.titleMicrostructural and spectroscopic investigations into the effect of CeO2 additions on the performance of a MnO2 aqueous rechargeable batteryen_AU
dc.typeJournal Articleen_AU
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