Zinc-Reduced Mesoporous TiO<inf>x</inf> Li-Ion Battery Anodes with Exceptional Rate Capability and Cycling Stability

Song, WJ; Yoo, S; Lee, JI; Han, JG; Son, Y; Kim, SI; Shin, M; Choi, S; Jang, JH; Cho, J; Choi, NS; Park, S

Zinc-Reduced Mesoporous TiO<inf>x</inf> Li-Ion Battery Anodes with Exceptional Rate Capability and Cycling Stability

Song, WJ Yoo, S Lee, JI Han, JG Son, Y Kim, SI Shin, M Choi, S Jang, JH Cho, J Choi, NS Park, S

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Publication Type:: Journal Article
Citation:: Chemistry - An Asian Journal, 2016, 11 (23), pp. 3382 - 3388
Issue Date:: 2016-12-06

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Field	Value	Language
dc.contributor.author	Song, WJ	en_US
dc.contributor.author	Yoo, S	en_US
dc.contributor.author	Lee, JI	en_US
dc.contributor.author	Han, JG	en_US
dc.contributor.author	Son, Y	en_US
dc.contributor.author	Kim, SI	en_US
dc.contributor.author	Shin, M	en_US
dc.contributor.author	Choi, S	en_US
dc.contributor.author	Jang, JH	en_US
dc.contributor.author	Cho, J	en_US
dc.contributor.author	Choi, NS	en_US
dc.contributor.author	Park, S	en_US
dc.date.issued	2016-12-06	en_US
dc.identifier.citation	Chemistry - An Asian Journal, 2016, 11 (23), pp. 3382 - 3388	en_US
dc.identifier.issn	1861-4728	en_US
dc.identifier.uri	http://hdl.handle.net/10453/103611
dc.description.abstract	© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim We demonstrate a unique synthetic route for oxygen-deficient mesoporous TiOx by a redox–transmetalation process by using Zn metal as the reducing agent. The as-obtained materials have significantly enhanced electronic conductivity; 20 times higher than that of as-synthesized TiO2 material. Moreover, electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT) measurements are performed to validate the low charge carrier resistance of the oxygen-deficient TiOx. The resulting oxygen-deficient TiOx battery anode exhibits a high reversible capacity (∼180 mA h g−1 at a discharge/charge rate of 1 C/1 C after 400 cycles) and an excellent rate capability (∼90 mA h g−1 even at a rate of 10 C). Also, the full cell, which is coupled with a LiCoO2 cathode material, exhibits an outstanding rate capability (>75 mA h g−1 at a rate of 3.0 C) and maintains a reversible capacity of over 100 mA h g−1 at a discharge/charge of 1 C/1 C for 300 cycles.	en_US
dc.relation.ispartof	Chemistry - An Asian Journal	en_US
dc.relation.isbasedon	10.1002/asia.201601061	en_US
dc.subject.classification	General Chemistry	en_US
dc.title	Zinc-Reduced Mesoporous TiO<inf>x</inf> Li-Ion Battery Anodes with Exceptional Rate Capability and Cycling Stability	en_US
dc.type	Journal Article
utslib.citation.volume	23	en_US
utslib.citation.volume	11	en_US
utslib.for	0302 Inorganic Chemistry	en_US
utslib.for	03 Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access
pubs.issue	23	en_US
pubs.publication-status	Published	en_US
pubs.volume	11	en_US

Abstract:

© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim We demonstrate a unique synthetic route for oxygen-deficient mesoporous TiOx by a redox–transmetalation process by using Zn metal as the reducing agent. The as-obtained materials have significantly enhanced electronic conductivity; 20 times higher than that of as-synthesized TiO2 material. Moreover, electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT) measurements are performed to validate the low charge carrier resistance of the oxygen-deficient TiOx. The resulting oxygen-deficient TiOx battery anode exhibits a high reversible capacity (∼180 mA h g−1 at a discharge/charge rate of 1 C/1 C after 400 cycles) and an excellent rate capability (∼90 mA h g−1 even at a rate of 10 C). Also, the full cell, which is coupled with a LiCoO2 cathode material, exhibits an outstanding rate capability (>75 mA h g−1 at a rate of 3.0 C) and maintains a reversible capacity of over 100 mA h g−1 at a discharge/charge of 1 C/1 C for 300 cycles.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/103611