Combustion synthesis of high-performance Li4Ti5O12 for secondary Li-ion battery

Yuan, Tao, Cai, Rui, Wang, Ke, Ran, Ran, Liu, Shaomin and Shao, Zongping (2009) Combustion synthesis of high-performance Li4Ti5O12 for secondary Li-ion battery. Ceramics International, 35 5: 1757-1768. doi:10.1016/j.ceramint.2008.10.010


Author Yuan, Tao
Cai, Rui
Wang, Ke
Ran, Ran
Liu, Shaomin
Shao, Zongping
Title Combustion synthesis of high-performance Li4Ti5O12 for secondary Li-ion battery
Formatted title Combustion synthesis of high-performance Li4Ti5O12 for secondary Li-ion battery
Journal name Ceramics International   Check publisher's open access policy
ISSN 0272-8842
1873-3956
Publication date 2009-07
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.ceramint.2008.10.010
Volume 35
Issue 5
Start page 1757
End page 1768
Total pages 12
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Formatted abstract Spinel Li4Ti5O12 was synthesized by a simple glycine-nitrate auto-combustion by applying aqueous medium and constricting the reactions in the pores of cellulose fibers. The products from the auto-combustion and further calcination at various temperatures were characterized by XRD, SEM, BET surface area and TEM examinations. Pure phase and well-crystallized nano-Li4Ti5O12 oxides were obtained at a calcination temperature of 700 °C or higher. The 700 °C calcined one shows the best and high electrochemical performance, which reached a capacity of ∼125 mAh/g at 10 C discharge rate with fairly stable cycling performance even at 40 °C. Electrochemical impedance spectroscopy tests demonstrated that the surface reaction kinetics of Li4Ti5O12 was improved significantly with the increase of its electronic conductivity.
Keyword Li4Ti5O12
Combustion synthesis
Cellulose
Rate capacity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Available online 21 October 2008

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Engineering Publications
 
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Created: Thu, 03 Sep 2009, 08:03:07 EST by Mr Andrew Martlew on behalf of School of Engineering