Please use this identifier to cite or link to this item: https://doi.org/10.1021/cm301432w
Title: Improving the performance of high capacity Li-ion anode materials by lithium titanate surface coating
Authors: Ji, G.
Ma, Y.
Ding, B.
Lee, J.Y. 
Keywords: core?shell
Li ion batteries
lithium titanate
tin oxide
Issue Date: 11-Sep-2012
Citation: Ji, G., Ma, Y., Ding, B., Lee, J.Y. (2012-09-11). Improving the performance of high capacity Li-ion anode materials by lithium titanate surface coating. Chemistry of Materials 24 (17) : 3329-3334. ScholarBank@NUS Repository. https://doi.org/10.1021/cm301432w
Abstract: Current methods for improving the electrochemical performance of lithium-ion battery electrode materials mostly depend on materials design and synthesis. We propose that the unique electrochemical properties of spinel lithium titanate (Li 4Ti 5O 12, LTO) make it suitable as a protective coating to improve the performance of high capacity anode materials. In this study, tin oxide was coated with LTO to reduce the initial irreversible capacity loss because of solid electrolyte interface (SEI) formation and to improve the reversibility (capacity and rate performance) of tin oxide for Li + storage. The LTO coating was applied to porous hollow tin oxide particles by a two-step process. Experimental measurements showed that the LTO coating shielded most of the direct contact between tin oxide and the electrolyte and hence the ICL due to SEI formation was reduced to mostly that of LTO, which is much lower than tin oxide. In addition the coated tin oxide also showed notable improvements in material cyclability and rate performance. © 2012 American Chemical Society.
Source Title: Chemistry of Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/89191
ISSN: 08974756
DOI: 10.1021/cm301432w
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

32
checked on Dec 11, 2018

WEB OF SCIENCETM
Citations

31
checked on Dec 11, 2018

Page view(s)

36
checked on Nov 9, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.