Comparison of the chemical stability of the high energy density cathodes of lithium-ion batteries

R. V. Chebiam; A. M. Kannan; F. Prado; A. Manthiram

doi:10.1016/S1388-2481(01)00232-6

Comparison of the chemical stability of the high energy density cathodes of lithium-ion batteries

R. V. Chebiam, A. M. Kannan, F. Prado, A. Manthiram

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

157 Scopus citations

Abstract

With an objective to assess the chemical stabilities and their consequences in cell performance, the variations of oxygen content with lithium content (1-x) in chemically delithiated Li_1-xCoO₂, Li_1-xNi_0.85Co_0.15O₂, and Li_1-xMn₂0₄ cathodes have been monitored with redox titrations. The Li_1-xNi_0.85Co_0.15O₂ system does not lose oxygen at least for (1-x) > 0.3. The chemical instability with a tendency to lose oxygen at deep lithium extraction could be the reason for the limited practical capacity of the Li_1-xCoO₂ system (140 mA h/g) compared to that realized with the Li_1-xNi_0.85Co_0.15O₂ system (180 mA h/g). The Li_1-xMn₂O₄ spinel maintains an oxygen of 4.0 wihtout losing any oxygen for 0.15 ≤ (1-x) ≤.

Original language	English (US)
Pages (from-to)	624-627
Number of pages	4
Journal	Electrochemistry Communications
Volume	3
Issue number	11
DOIs	https://doi.org/10.1016/S1388-2481(01)00232-6
State	Published - 2001
Externally published	Yes

Keywords

Chemical delithiation
Chemical stability
Lithium-ion battery
Positive electrodes

ASJC Scopus subject areas

Electrochemistry

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10.1016/S1388-2481(01)00232-6

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title = "Comparison of the chemical stability of the high energy density cathodes of lithium-ion batteries",

abstract = "With an objective to assess the chemical stabilities and their consequences in cell performance, the variations of oxygen content with lithium content (1-x) in chemically delithiated Li1-xCoO2, Li1-xNi0.85Co0.15O2, and Li1-xMn204 cathodes have been monitored with redox titrations. The Li1-xNi0.85Co0.15O2 system does not lose oxygen at least for (1-x) > 0.3. The chemical instability with a tendency to lose oxygen at deep lithium extraction could be the reason for the limited practical capacity of the Li1-xCoO2 system (140 mA h/g) compared to that realized with the Li1-xNi0.85Co0.15O2 system (180 mA h/g). The Li1-xMn2O4 spinel maintains an oxygen of 4.0 wihtout losing any oxygen for 0.15 ≤ (1-x) ≤.",

keywords = "Chemical delithiation, Chemical stability, Lithium-ion battery, Positive electrodes",

author = "Chebiam, {R. V.} and Kannan, {A. M.} and F. Prado and A. Manthiram",

note = "Funding Information: This work was supported by the Center for Space Power at the Texas A&M University (a NASA Commercial Space Center), Texas Advanced Technology Program Grant 003658-0488-1999, and the Welch Foundation Grant F-1254. ",

year = "2001",

doi = "10.1016/S1388-2481(01)00232-6",

language = "English (US)",

volume = "3",

pages = "624--627",

journal = "Electrochemistry Communications",

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T1 - Comparison of the chemical stability of the high energy density cathodes of lithium-ion batteries

AU - Chebiam, R. V.

AU - Kannan, A. M.

AU - Prado, F.

AU - Manthiram, A.

N1 - Funding Information: This work was supported by the Center for Space Power at the Texas A&M University (a NASA Commercial Space Center), Texas Advanced Technology Program Grant 003658-0488-1999, and the Welch Foundation Grant F-1254.

PY - 2001

Y1 - 2001

N2 - With an objective to assess the chemical stabilities and their consequences in cell performance, the variations of oxygen content with lithium content (1-x) in chemically delithiated Li1-xCoO2, Li1-xNi0.85Co0.15O2, and Li1-xMn204 cathodes have been monitored with redox titrations. The Li1-xNi0.85Co0.15O2 system does not lose oxygen at least for (1-x) > 0.3. The chemical instability with a tendency to lose oxygen at deep lithium extraction could be the reason for the limited practical capacity of the Li1-xCoO2 system (140 mA h/g) compared to that realized with the Li1-xNi0.85Co0.15O2 system (180 mA h/g). The Li1-xMn2O4 spinel maintains an oxygen of 4.0 wihtout losing any oxygen for 0.15 ≤ (1-x) ≤.

AB - With an objective to assess the chemical stabilities and their consequences in cell performance, the variations of oxygen content with lithium content (1-x) in chemically delithiated Li1-xCoO2, Li1-xNi0.85Co0.15O2, and Li1-xMn204 cathodes have been monitored with redox titrations. The Li1-xNi0.85Co0.15O2 system does not lose oxygen at least for (1-x) > 0.3. The chemical instability with a tendency to lose oxygen at deep lithium extraction could be the reason for the limited practical capacity of the Li1-xCoO2 system (140 mA h/g) compared to that realized with the Li1-xNi0.85Co0.15O2 system (180 mA h/g). The Li1-xMn2O4 spinel maintains an oxygen of 4.0 wihtout losing any oxygen for 0.15 ≤ (1-x) ≤.

KW - Chemical delithiation

KW - Chemical stability

KW - Lithium-ion battery

KW - Positive electrodes

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 11

ER -

Comparison of the chemical stability of the high energy density cathodes of lithium-ion batteries

Abstract

Keywords

ASJC Scopus subject areas

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