Surfactant-free nonaqueous synthesis of lithium titanium oxide (LTO) nanostructures for lithium ion battery applications
authors Yu, SH; Pucci, A; Herntrich, T; Willinger, MG; Baek, SH; Sung, YE; Pinna, N
nationality International
journal JOURNAL OF MATERIALS CHEMISTRY
keywords SOL-GEL ROUTES; ELECTROCHEMICAL PROPERTIES; NANOCRYSTALLINE LI4TI5O12; NEGATIVE ELECTRODE; ANODE MATERIAL; LI-INSERTION; SPINEL; NANOPARTICLES; NANOMATERIALS; PERFORMANCE
abstract A one-pot template-free solvothermal synthesis of crystalline Li(4)Ti(5)O(12) nanostructures based on the "benzyl alcohol route'' is introduced. The 1-2 mu m sized nanostructured spherical particles are constituted of nanocrystallites in the size range of a few nm. This is the first report showing that crystalline Li(4)Ti(5)O(12) 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 degrees C improves the performance, which approaches the theoretical capacity of Li(4)Ti(5)O(12) with no noticeable (less than 5%) capacity loss after 200 cycles.
publisher ROYAL SOC CHEMISTRY
issn 0959-9428
year published 2011
volume 21
issue 3
beginning page 806
ending page 810
digital object identifier (doi) 10.1039/c0jm03064c
web of science category Chemistry, Physical; Materials Science, Multidisciplinary
subject category Chemistry; Materials Science
unique article identifier WOS:000285749900030

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