Thermal properties of Li4/3Ti5/3O4/LiMn2O4 cell

W. Lu; I. Belharouak; J. Liu; K. Amine

doi:10.1016/j.jpowsour.2007.06.199

Thermal properties of Li_4/3Ti_5/3O₄/LiMn₂O₄ cell

W. Lu
, I. Belharouak
, J. Liu
, K. Amine

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

The thermal properties of Li_4/3Ti_5/3O₄ and Li_1+xMn₂O₄ electrodes were investigated by isothermal micro-calorimetry (IMC). The 150-mAh g^-1 capacity of a Li/Li_4/3Ti_5/3O₄ half cell was obtained through the voltage plateau that occurs at 1.55 V during the phase transition from spinel to rock salt. Extra capacity below 1.0 V was attributed to the generation of a new phase. The small and constant entropy change of Li_4/3Ti_5/3O₄ during the spinel/rock-salt phase transition indicated its good thermal stability. Accelerated rate calorimetry confirmed that Li_4/3Ti_5/3O₄ has better thermal characteristics than graphite. The IMC results for a Li/Li_1+xMn₂O₄ half cell indicated less heat variation due to the suppression of the order/disorder change by lithium doping. The heat profiles of the Li_4/3Ti_5/3O₄/Li_1+xMn₂O₄ full cell indicated less heat generation compared with a mesocarbon-microbead graphite/Li_1+xMn₂O₄ cell.

Original language	English
Pages (from-to)	673-677
Number of pages	5
Journal	Journal of Power Sources
Volume	174
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2007.06.199
State	Published - Dec 6 2007
Externally published	Yes

Funding

This work was performed under the auspices of the U.S. Department of Energy, Energy Efficiency and Renewable Energy, Office of FreedomCAR and Vehicle Technologies, under Contract No. W-31-109-Eng-38.

Keywords

Entropy change
Lithium manganese spinel
Lithium titanate spinel
Thermal safety

Access to Document

10.1016/j.jpowsour.2007.06.199

Cite this

@article{f104ad7690514dd3a96a9b5dc95f1115,

title = "Thermal properties of Li4/3Ti5/3O4/LiMn2O4 cell",

abstract = "The thermal properties of Li4/3Ti5/3O4 and Li1+xMn2O4 electrodes were investigated by isothermal micro-calorimetry (IMC). The 150-mAh g-1 capacity of a Li/Li4/3Ti5/3O4 half cell was obtained through the voltage plateau that occurs at 1.55 V during the phase transition from spinel to rock salt. Extra capacity below 1.0 V was attributed to the generation of a new phase. The small and constant entropy change of Li4/3Ti5/3O4 during the spinel/rock-salt phase transition indicated its good thermal stability. Accelerated rate calorimetry confirmed that Li4/3Ti5/3O4 has better thermal characteristics than graphite. The IMC results for a Li/Li1+xMn2O4 half cell indicated less heat variation due to the suppression of the order/disorder change by lithium doping. The heat profiles of the Li4/3Ti5/3O4/Li1+xMn2O4 full cell indicated less heat generation compared with a mesocarbon-microbead graphite/Li1+xMn2O4 cell.",

keywords = "Entropy change, Lithium manganese spinel, Lithium titanate spinel, Thermal safety",

author = "W. Lu and I. Belharouak and J. Liu and K. Amine",

year = "2007",

month = dec,

day = "6",

doi = "10.1016/j.jpowsour.2007.06.199",

language = "English",

volume = "174",

pages = "673--677",

journal = "Journal of Power Sources",

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number = "2",

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TY - JOUR

T1 - Thermal properties of Li4/3Ti5/3O4/LiMn2O4 cell

AU - Lu, W.

AU - Belharouak, I.

AU - Liu, J.

AU - Amine, K.

PY - 2007/12/6

Y1 - 2007/12/6

N2 - The thermal properties of Li4/3Ti5/3O4 and Li1+xMn2O4 electrodes were investigated by isothermal micro-calorimetry (IMC). The 150-mAh g-1 capacity of a Li/Li4/3Ti5/3O4 half cell was obtained through the voltage plateau that occurs at 1.55 V during the phase transition from spinel to rock salt. Extra capacity below 1.0 V was attributed to the generation of a new phase. The small and constant entropy change of Li4/3Ti5/3O4 during the spinel/rock-salt phase transition indicated its good thermal stability. Accelerated rate calorimetry confirmed that Li4/3Ti5/3O4 has better thermal characteristics than graphite. The IMC results for a Li/Li1+xMn2O4 half cell indicated less heat variation due to the suppression of the order/disorder change by lithium doping. The heat profiles of the Li4/3Ti5/3O4/Li1+xMn2O4 full cell indicated less heat generation compared with a mesocarbon-microbead graphite/Li1+xMn2O4 cell.

AB - The thermal properties of Li4/3Ti5/3O4 and Li1+xMn2O4 electrodes were investigated by isothermal micro-calorimetry (IMC). The 150-mAh g-1 capacity of a Li/Li4/3Ti5/3O4 half cell was obtained through the voltage plateau that occurs at 1.55 V during the phase transition from spinel to rock salt. Extra capacity below 1.0 V was attributed to the generation of a new phase. The small and constant entropy change of Li4/3Ti5/3O4 during the spinel/rock-salt phase transition indicated its good thermal stability. Accelerated rate calorimetry confirmed that Li4/3Ti5/3O4 has better thermal characteristics than graphite. The IMC results for a Li/Li1+xMn2O4 half cell indicated less heat variation due to the suppression of the order/disorder change by lithium doping. The heat profiles of the Li4/3Ti5/3O4/Li1+xMn2O4 full cell indicated less heat generation compared with a mesocarbon-microbead graphite/Li1+xMn2O4 cell.

KW - Entropy change

KW - Lithium manganese spinel

KW - Lithium titanate spinel

KW - Thermal safety

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DO - 10.1016/j.jpowsour.2007.06.199

M3 - Article

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