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Title: Na2Ti3O7: An intercalation based anode for sodium-ion battery applications
Authors: Rudola, A.
Saravanan, K. 
Mason, C.W.
Balaya, P. 
Issue Date: 21-Feb-2013
Citation: Rudola, A., Saravanan, K., Mason, C.W., Balaya, P. (2013-02-21). Na2Ti3O7: An intercalation based anode for sodium-ion battery applications. Journal of Materials Chemistry A 1 (7) : 2653-2662. ScholarBank@NUS Repository.
Abstract: We report here the electrochemical properties of Na2Ti 3O7, a potential non-carbon based, low-voltage anode material for room temperature sodium ion battery applications. A solid-state route was used to prepare Na2Ti3O7. Further, XRD, SEM, TEM, HRTEM, SAED, XPS and EDX techniques were used to characterize the material. The Na/Na2Ti3O7 cell displayed a charge capacity of 177 mA h g-1 at 0.1 C rate. High rate and long term cyclic performance at different rates showed relatively stable storage capacities. Surprisingly, if the lower cut-off voltage is altered, the appearance of a new charge plateau is seen, with no apparent change in the discharge behaviour. The kinetics of sodium insertion and extraction are discussed utilizing CV and EIS techniques. We also report the sodium chemical diffusion coefficient of the Na2Ti3O7/CB electrode estimated using GITT. © 2013 The Royal Society of Chemistry.
Source Title: Journal of Materials Chemistry A
ISSN: 20507488
DOI: 10.1039/c2ta01057g
Appears in Collections:Staff Publications

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