Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/130360
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Type: Journal article
Title: Mass production of Li₄Ti₅O₁₂ with a conductive network via in situ spray pyrolysis as a long cycle life, high rate anode material for lithium ion batteries
Other Titles: Mass production of Li(4)Ti(5)O(12) with a conductive network via in situ spray pyrolysis as a long cycle life, high rate anode material for lithium ion batteries
Author: Du, G.
Winton, B.R.
Hashim, I.M.
Sharma, N.
Konstantinov, K.
Reddy, M.V.
Guo, Z.
Citation: RSC Advances: an international journal to further the chemical sciences, 2014; 4(73):38568-38574
Publisher: Royal Society of Chemistry
Issue Date: 2014
ISSN: 2046-2069
2046-2069
Statement of
Responsibility: 
Guodong Du, Brad R. Winton, Israa M. Hashim, Neeraj Sharma, Konstantin Konstantinov, M. V. Reddy and Zaiping Guo
Abstract: Nanocrystalline Li4Ti5O12 with in situ incorporation of carbon and Ti3+ was synthesized by industry scalable in situ spray pyrolysis, producing crystal sizes ranging from 10 to 30 nm. Subsequent annealing in N2 preserved a proportion of the carbon from the precursor organic salts, predominantly on the Li4Ti5O12 grain boundaries, where it formed a conductive network. Such a situation would be expected to inhibit the growth of the primary Li4Ti5O12 crystals. The molecular-level uniformity of the precursor allows synthesis of Li4Ti5O12 with a significantly shorter heat treatment compared to conventional solid state reaction, which in turn saves energy during large-scale production. Notably, both the nanosized particles and the in situ incorporation of carbon and Ti3+ improve the rate capability. In rate capability measurements, stable and high capacity retention was observed from 0.5 C to 30 C. Spray pyrolyzed Li4Ti5O12 delivered a discharge capacity of 145.8 mA h g−1 at 10 C for up to 500 cycles. In the full battery tests with Li(Co0.16Mn1.84)O4 as cathode, it also showed excellent capacity and cycling stability, further indicating that spray pyrolyzed Li4Ti5O12 is a promising anode material for high power batteries.
Rights: Copyright status unknown
DOI: 10.1039/c4ra05178e
Grant ID: http://purl.org/au-research/grants/arc/DP1094261
http://purl.org/au-research/grants/arc/DP1093952
Published version: http://dx.doi.org/10.1039/c4ra05178e
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Chemistry publications

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