Safety characteristics of the Li4Ti5Ou/LiMn 2O4 Li-ion battery

Ilias Belharouak, Wenquan Lu, Khalil Amine

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

1 Citation (Scopus)

Abstract

The Li4Ti5O12/LiMn2O 4 cell holds promise for safer operation of lithium-ion batteries. In this study, Li4+xTi5[Ai]O12 anode powder was prepared by chemical lithiation of Li1-yTi5O12 in the presence of an excess of butylithium (LiC4H9) in hexane solution, and Li1-yMn2O4 cathode powder was prepared by chemical delithiation of LiMn2O4 spinel using NO2BF4 oxidizer in an acetonitrile medium. Thermal gravimetric analysis showed that the Li1-yMn2O4 releases oxygen starting at 200°C with an overall oxygen loss of 6 wt% at 500°C, whereas the Li4+xTi5O12 gains oxygen starting at 200°C with an overall oxygen gain of 4 wt% at 500°C. The reactivity of Li4+xTi5O12 and Li 1-yMn2O4 powders in the presence of electrolyte was also investigated by differential scanning calorimetry between room temperature and 375°C. The results suggest that the Li4+xTi 5O12 anode is thermally more stable compared with the conventional lithiated graphite anode.

Original languageEnglish
Title of host publicationSolid-State Ionics-2006
Pages339-344
Number of pages6
Publication statusPublished - 29 Jun 2007
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: 27 Nov 20061 Dec 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume972
ISSN (Print)0272-9172

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period27/11/061/12/06

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ASJC Scopus subject areas

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

Cite this

Belharouak, I., Lu, W., & Amine, K. (2007). Safety characteristics of the Li4Ti5Ou/LiMn 2O4 Li-ion battery. In Solid-State Ionics-2006 (pp. 339-344). (Materials Research Society Symposium Proceedings; Vol. 972).