Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.electacta.2006.07.014
DC FieldValue
dc.titleProperties of nano-crystalline LiMn2O4 thin films deposited by pulsed laser deposition
dc.contributor.authorTang, S.B.
dc.contributor.authorLai, M.O.
dc.contributor.authorLu, L.
dc.date.accessioned2014-10-07T09:09:42Z
dc.date.available2014-10-07T09:09:42Z
dc.date.issued2006-11-12
dc.identifier.citationTang, S.B., Lai, M.O., Lu, L. (2006-11-12). Properties of nano-crystalline LiMn2O4 thin films deposited by pulsed laser deposition. Electrochimica Acta 52 (3) : 1161-1168. ScholarBank@NUS Repository. https://doi.org/10.1016/j.electacta.2006.07.014
dc.identifier.issn00134686
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/85583
dc.description.abstractProperties of LiMn2O4 thin films deposited on polished stainless steel substrates at 400 °C and 200 mTorr of oxygen by pulsed laser deposition have been characterized by electrochemical measurements and physical analyses. The film was mainly composed of nano-crystals less than 100 nm. A maximum specific capacity of 141.9 mAh/g cycled between 3.0 and 4.5 V with a current density of 20 μAh/cm2 has been achieved. The film exhibited an excellent cycling stability up to 500 cycles. The low charge-transfer resistance at high potentials as revealed by AC impedance resulted in high charge/discharge potential and more capacity. The effect of overdischarge was limited and Jahn-Teller effect was overcome to a significant extent in this nano-crystalline film. Ex situ XRD, Raman and XPS provided supporting evidence in the changes in structure, reactivity and cycling stability of nano-crystalline LiMn2O4 film cathodes under different charge/discharge states and cycling tests. SEM images also revealed the stability of the surface topography after a long-term cycling test. © 2006 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.electacta.2006.07.014
dc.sourceScopus
dc.subjectCharge/discharge
dc.subjectCycling stability
dc.subjectNano-crystalline LiMn2O4 thin films
dc.subjectPulsed laser deposition
dc.subjectSpecific capacity
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.electacta.2006.07.014
dc.description.sourcetitleElectrochimica Acta
dc.description.volume52
dc.description.issue3
dc.description.page1161-1168
dc.description.codenELCAA
dc.identifier.isiut000242616100053
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