Surfactant-free nonaqueous synthesis of lithium titanium oxide (LTO) nanostructures for lithium ion battery applications

Seung-Ho Yu; Andrea Pucci; Tobias Herntrich; Marc-Georg Willinger; Seung-Hwan Baek; Yung-Eun Sung; Nicola Pinna

doi:10.1039/C0JM03064C

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Journal of Materials Chemistry

Issue 3, 2011

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Surfactant-free nonaqueous synthesis of lithium titanium oxide (LTO) nanostructures for lithium ion battery applications

Seung-Ho Yu , Andrea Pucci , Tobias Herntrich , Marc-Georg Willinger , Seung-Hwan Baek , Yung-Eun Sung and Nicola Pinna

J. Mater. Chem., 2011, 21, 806-810

DOI: 10.1039/C0JM03064C
Received 13 May 2010, Accepted 19 Oct 2010
First published on the web 15 Nov 2010

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A one-pot template-free solvothermal synthesis of crystalline Li₄Ti₅O₁₂ nanostructures based on the “benzyl alcohol route” is introduced. The 1–2 µm sized nanostructured spherical particles are constituted of nanocrystallites in the size range of a few nm. This is the first report showing that crystalline Li₄Ti₅O₁₂ can be directly obtained by soft chemistry solution routes. The as-synthesized crystalline nanostructures show good lithium intercalation/deintercalation performances at high rates (up to 30 C) and good cycling stabilities. Annealing the nanostructures at 750 °C improves the performance, which approaches the theoretical capacity of Li₄Ti₅O₁₂ with no noticeable (less than 5%) capacity loss after 200 cycles.

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Seung-Ho Yu
Andrea Pucci
Tobias Herntrich
Marc-Georg Willinger
Seung-Hwan Baek
Yung-Eun Sung
Nicola Pinna

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Journal of Materials Chemistry

Surfactant-free nonaqueous synthesis of lithium titanium oxide (LTO) nanostructures for lithium ion battery applications

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