Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.jpowsour.2006.04.050
Title: | Anodic properties of tin oxides with pyrochlore structure for lithium ion batteries | Authors: | Sharma, N. Subba Rao, G.V. Chowdari, B.V.R. |
Keywords: | Electrochemical properties Li-ion batteries Pyrochlores Tin oxides |
Issue Date: | 13-Sep-2006 | Citation: | Sharma, 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 | Abstract: | Mixed 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. | Source Title: | Journal of Power Sources | URI: | http://scholarbank.nus.edu.sg/handle/10635/95796 | ISSN: | 03787753 | DOI: | 10.1016/j.jpowsour.2006.04.050 |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
SCOPUSTM
Citations
24
checked on Mar 2, 2021
WEB OF SCIENCETM
Citations
25
checked on Mar 2, 2021
Page view(s)
92
checked on Feb 28, 2021
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.