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 publicationMaterials Research Society Symposium Proceedings
Pages339-344
Number of pages6
Volume972
Publication statusPublished - 29 Jun 2007
Externally publishedYes
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: 27 Nov 20061 Dec 2006

Other

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

Fingerprint

Powders
Oxygen
Anodes
Graphite
Gravimetric analysis
Hexanes
Hexane
Acetonitrile
Electrolytes
Differential scanning calorimetry
Cathodes
Lithium-ion batteries
Temperature
spinell
acetonitrile
Hot Temperature
lithium manganese oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

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

Safety characteristics of the Li4Ti5Ou/LiMn 2O4 Li-ion battery. / Belharouak, Ilias; Lu, Wenquan; Amine, Khalil.

Materials Research Society Symposium Proceedings. Vol. 972 2007. p. 339-344.

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

Belharouak, I, Lu, W & Amine, K 2007, Safety characteristics of the Li4Ti5Ou/LiMn 2O4 Li-ion battery. in Materials Research Society Symposium Proceedings. vol. 972, pp. 339-344, 2006 MRS Fall Meeting, Boston, MA, United States, 27/11/06.
Belharouak I, Lu W, Amine K. Safety characteristics of the Li4Ti5Ou/LiMn 2O4 Li-ion battery. In Materials Research Society Symposium Proceedings. Vol. 972. 2007. p. 339-344
Belharouak, Ilias ; Lu, Wenquan ; Amine, Khalil. / Safety characteristics of the Li4Ti5Ou/LiMn 2O4 Li-ion battery. Materials Research Society Symposium Proceedings. Vol. 972 2007. pp. 339-344
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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.",
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