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

73 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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