Nanocrystalline rutile TiO2 electrode for high-capacity and high-rate lithium storage

Chunhai Jiang, Itaru Honma, Tetsuichi Kudo, Haoshen Zhou

Research output: Contribution to journalArticle

121 Citations (Scopus)

Abstract

A remarkably high lithium storage capability, high rate performance, and cyclability were observed in nanometer-sized rutile Ti O2 electrode at room temperature. The Li insertion ratio, LiTi, can be well above 1 in rutile nano-electrode at the first discharge cycled at 0.05 Ag, and about 0.6-0.7 Li can be reversibly cycled. After 100 cycles the discharge capacities of an ultrafine rutile electrode are still of 132 and 118 mAhg when being cycled at 5 and 10 Ag, respectively. Our results suggest that nanometer-sized rutile can be a promising anode material for lithium-ion batteries, especially for high power and high energy density use.

Original languageEnglish
Pages (from-to)127-129
Number of pages3
JournalElectrochemical and Solid-State Letters
Volume10
Issue number5
DOIs
Publication statusPublished - 2007 Mar 23
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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