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

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

A one-pot template-free solvothermal synthesis of crystalline Li 4Ti5O12 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 Li 4Ti5O12 with no noticeable (less than 5%) capacity loss after 200 cycles.

Original languageEnglish
Pages (from-to)806-810
Number of pages5
JournalJournal of Materials Chemistry
Volume21
Issue number3
DOIs
Publication statusPublished - 2011 Jan 21
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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