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

Electrification and Energy Infrastructur

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

63 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

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",

issn = "0378-7753",

publisher = "Elsevier",

number = "2",

}

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

UR - https://www.scopus.com/pages/publications/36149000907

U2 - 10.1016/j.jpowsour.2007.06.199

DO - 10.1016/j.jpowsour.2007.06.199

M3 - Article

AN - SCOPUS:36149000907

SN - 0378-7753

VL - 174

SP - 673

EP - 677

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 2

ER -