Capacity loss of lithium manganese oxide spinel in LiPF6/ethylene carbonate-dimethyl carbonate electrolytes

H Huang; Colin Angus Vincent; Peter George Bruce

Capacity loss of lithium manganese oxide spinel in LiPF₆/ethylene carbonate-dimethyl carbonate electrolytes

H Huang, Colin Angus Vincent, Peter George Bruce

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

Abstract

The stability of lithium manganese oxide spinel in LiPF6/EC:DMC (ethylene carbonate-dimethyl carbonate) based electrolytes has been investigated at different states of charge and at temperatures between 21 and 55 degrees C. Reversible capacity loss due to reinsertion of lithium takes place at all states of charge and temperature. This reaction can proceed to the extent of inserting more than one Li per Mn2O4 at 55 degrees C resulting in the formation of tetragonal Li1+xMn2O4. The second process, irreversible capacity loss due to dissolution of the cathode, makes little contribution to capacity loss in highly charged electrodes, but has an effect comparable to reinsertion in discharged electrodes. (C) 1999 The Electrochemical Society. S0013-4651(98)06-038-8. All rights reserved.

Original language	English
Pages (from-to)	481-485
Number of pages	5
Journal	Journal of The Electrochemical Society
Volume	146
Publication status	Published - Feb 1999

Keywords

ION BATTERIES
LIMN2O4
CATHODES
INSERTION
CELLS

Cite this

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title = "Capacity loss of lithium manganese oxide spinel in LiPF6/ethylene carbonate-dimethyl carbonate electrolytes",

abstract = "The stability of lithium manganese oxide spinel in LiPF6/EC:DMC (ethylene carbonate-dimethyl carbonate) based electrolytes has been investigated at different states of charge and at temperatures between 21 and 55 degrees C. Reversible capacity loss due to reinsertion of lithium takes place at all states of charge and temperature. This reaction can proceed to the extent of inserting more than one Li per Mn2O4 at 55 degrees C resulting in the formation of tetragonal Li1+xMn2O4. The second process, irreversible capacity loss due to dissolution of the cathode, makes little contribution to capacity loss in highly charged electrodes, but has an effect comparable to reinsertion in discharged electrodes. (C) 1999 The Electrochemical Society. S0013-4651(98)06-038-8. All rights reserved.",

keywords = "ION BATTERIES, LIMN2O4, CATHODES, INSERTION, CELLS",

author = "H Huang and Vincent, {Colin Angus} and Bruce, {Peter George}",

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journal = "Journal of The Electrochemical Society",

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T1 - Capacity loss of lithium manganese oxide spinel in LiPF6/ethylene carbonate-dimethyl carbonate electrolytes

AU - Huang, H

AU - Vincent, Colin Angus

AU - Bruce, Peter George

PY - 1999/2

Y1 - 1999/2

N2 - The stability of lithium manganese oxide spinel in LiPF6/EC:DMC (ethylene carbonate-dimethyl carbonate) based electrolytes has been investigated at different states of charge and at temperatures between 21 and 55 degrees C. Reversible capacity loss due to reinsertion of lithium takes place at all states of charge and temperature. This reaction can proceed to the extent of inserting more than one Li per Mn2O4 at 55 degrees C resulting in the formation of tetragonal Li1+xMn2O4. The second process, irreversible capacity loss due to dissolution of the cathode, makes little contribution to capacity loss in highly charged electrodes, but has an effect comparable to reinsertion in discharged electrodes. (C) 1999 The Electrochemical Society. S0013-4651(98)06-038-8. All rights reserved.

AB - The stability of lithium manganese oxide spinel in LiPF6/EC:DMC (ethylene carbonate-dimethyl carbonate) based electrolytes has been investigated at different states of charge and at temperatures between 21 and 55 degrees C. Reversible capacity loss due to reinsertion of lithium takes place at all states of charge and temperature. This reaction can proceed to the extent of inserting more than one Li per Mn2O4 at 55 degrees C resulting in the formation of tetragonal Li1+xMn2O4. The second process, irreversible capacity loss due to dissolution of the cathode, makes little contribution to capacity loss in highly charged electrodes, but has an effect comparable to reinsertion in discharged electrodes. (C) 1999 The Electrochemical Society. S0013-4651(98)06-038-8. All rights reserved.

KW - ION BATTERIES

KW - LIMN2O4

KW - CATHODES

KW - INSERTION

KW - CELLS

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M3 - Article

SN - 0013-4651

VL - 146

SP - 481

EP - 485

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

ER -

Capacity loss of lithium manganese oxide spinel in LiPF₆/ethylene carbonate-dimethyl carbonate electrolytes

Abstract

Keywords

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