Synthesis, structure, and electrochemical properties of Li 4Ti5O12

Chintalapalle V. Ramana, Satoshi Utsunomiya, Rodney C. Ewing, Udo Becker, Karim Zaghib, Christian M. Julien

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Lithium titanium oxide (Li4Ti5O12) spinels are promising negative electrode materials for application in energy technology. In this work, we have synthesized Li4Ti5O 12 and investigated its structure, electronic properties, and electrochemical features using several analytical spectroscopy and microscopy-based techniques. The equally spaced fringe pattern indicated by the high-resolution transmission electron microscopy (HRTEM) along with electron diffraction revealed that the grown Li4Ti5O12 is well crystallized in the spinel structure without any indication of crystallographic defects such as dislocations or misfits. The electronic structure determination using high-resolution X-ray photoelectron spectroscopy (XPS) coupled with compositional studies using energy dispersive X-ray spectrometry (EDS) indicated the excellent chemical quality of the Li 4Ti5O12. Under the optimal synthetic condition, the sample delivers a discharge capacity of 161 mAh/g at C/12. The good cyclability of Li4Ti5O12 is attributed to the small expansion (ΔV≈%) of the elementary unit-cell.

Original languageEnglish
Title of host publicationMobile Energy
PublisherMaterials Research Society
Pages37-42
Number of pages6
ISBN (Print)9781604234213
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume973
ISSN (Print)0272-9172

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/27/0612/1/06

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Synthesis, structure, and electrochemical properties of Li <sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>'. Together they form a unique fingerprint.

Cite this