Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jpowsour.2006.04.050
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dc.titleAnodic properties of tin oxides with pyrochlore structure for lithium ion batteries
dc.contributor.authorSharma, N.
dc.contributor.authorSubba Rao, G.V.
dc.contributor.authorChowdari, B.V.R.
dc.date.accessioned2014-10-16T09:15:55Z
dc.date.available2014-10-16T09:15:55Z
dc.date.issued2006-09-13
dc.identifier.citationSharma, N., Subba Rao, G.V., Chowdari, B.V.R. (2006-09-13). Anodic properties of tin oxides with pyrochlore structure for lithium ion batteries. Journal of Power Sources 159 (1 SPEC. ISS.) : 340-344. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jpowsour.2006.04.050
dc.identifier.issn03787753
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/95796
dc.description.abstractMixed tin oxides, M2Sn2O7 (M = Y, Nd), with cubic pyrochlore structure were synthesized and characterized by X-ray diffraction and SEM. Galvanostatic cycling versus Li metal in the voltage range, 0.005-1.0 V at the current density of 60 mA g-1 showed that the first-discharge capacities are 913 and 722 mA hg-1 whereas the first-charge capacities are 350 and 265 (±3) mA hg-1, for M = Y and Nd, respectively. The corresponding number of moles of recyclable Li are 3.4 and 3.2 for M = Y and Nd. Crystal structure destruction occurs during the first-discharge leading to the formation of nano-particles of Sn-metal and finally Li4.4Sn in a matrix of Li-M-O. After 50 cycles, both compounds showed a capacity-retention of 89 (±1)% of the 10th cycle reversible capacity. The coulombic efficiency is ∼98%. The average charge and discharge voltages in both compounds are 0.5 and 0.25 V, respectively. Cyclic voltammograms complement the galvanostatic results and showed that a good operating voltage range is 0.005-1.0 V. The electrodic performances of M2Sn2O7 have been compared with those exhibited by other crystalline ternary tin oxides. © 2006 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jpowsour.2006.04.050
dc.sourceScopus
dc.subjectElectrochemical properties
dc.subjectLi-ion batteries
dc.subjectPyrochlores
dc.subjectTin oxides
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1016/j.jpowsour.2006.04.050
dc.description.sourcetitleJournal of Power Sources
dc.description.volume159
dc.description.issue1 SPEC. ISS.
dc.description.page340-344
dc.description.codenJPSOD
dc.identifier.isiut000241012000067
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