Solution-Combustion Synthesized Nanocrystalline Li4Ti5O12 As High-Rate Performance Li-Ion Battery Anode
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
Solution-Combustion Synthesized Nanocrystalline Li4Ti5O12 As
High-Rate Performance Li-Ion Battery Anode
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| Creator |
Prakash, A.S.
Manikandan, P. Ramesha, K. Sathiya, M. Tarascon, J.M. Shukla, A.K. |
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| Subject |
Lithium batteries
Electrochemical Power Sources |
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| Description |
Nanocrystalline Li4Ti5O12 (LTO) crystallizing in cubic spinel-phase has been synthesized by
single-step-solution-combustion method in less than one minute. LTO particles thus synthesized are
flaky and highly porous in nature with a surface area of 12 m2/g. Transmission electron micrographs
indicate the primary particles to be agglomerated crystallites of varying size between 20 and 50 nm
with a 3-dimensional interconnected porous network. During their galvanostatic charge-discharge
at varying rates, LTO electrodes yield a capacity value close to the theoretical value of 175 mA h/g at
C/2 rate. The electrodes also exhibit promising capacity retention with little capacity loss over
100 cycles at varying discharge rates together with attractive discharge-rate capabilities yielding
capacity values of 140 mA h/g and 70 mA h/g at 10 and 100 C discharge rates, respectively. The
ameliorated electrode-performance is ascribed to nano and highly porous morphology of the
electrodes that provide short diffusion-paths for Li in conjunction with electrolyte percolation
through the electrode pores ensuring a high flux of Li.
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| Publisher |
American Chemical Society
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| Date |
2010
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/180/1/2010-018_%282%29.pdf
Prakash, A.S. and Manikandan, P. and Ramesha, K. and Sathiya, M. and Tarascon, J.M. and Shukla, A.K. (2010) Solution-Combustion Synthesized Nanocrystalline Li4Ti5O12 As High-Rate Performance Li-Ion Battery Anode. Chemistry of Materials, 22. pp. 2857-2863. ISSN 0897-4756 |
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| Relation |
http://cecri.csircentral.net/180/
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