Enhancement of the electrochemical properties of Li1Mn2O4 through chemical substitution

G. G. Amatucci; N. Pereira; T. Zheng; I. Plitz; J. M. Tarascon

doi:10.1016/S0378-7753(99)00186-X

Enhancement of the electrochemical properties of Li₁Mn₂O₄ through chemical substitution

G. G. Amatucci
, N. Pereira
, T. Zheng
, I. Plitz
, J. M. Tarascon

School of Engineering, Materials Science & Engineering

Research output: Contribution to journal › Conference article › peer-review

99 Scopus citations

Abstract

The link between room temperature (RT) cycling failure for Li₁Mn₂O₄-type spinels and elevated temperature (ET) failure of Li_1.05Mn_1.95O₄ materials was investigated by physical and electrochemical characterization. Failure for both ET and RT cycling occurred at the end of discharge. Substantial evidence suggesting a link based on the cooperative Jahn-Teller distortion was found. Based on this knowledge, LiAl_xMn_2-xO_4-δF_Z materials were fabricated. These novel compounds were found to offer much improved capacity and ET performance than present generation materials. Three hundred cycles at 55°C resulted in 15% capacity loss. Storage in charged and discharged state for 4 days at 70°C revealed less than 1.6% irreversible capacity loss.

Original language	English (US)
Pages (from-to)	39-43
Number of pages	5
Journal	Journal of Power Sources
Volume	81-82
DOIs	https://doi.org/10.1016/S0378-7753(99)00186-X
State	Published - Sep 1999
Event	Proceedings of the 1998 Ninth International Meeting on Lithium Batteries - Edingburgh, United Kingdom Duration: Jul 12 1998 → Jul 17 1998

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Keywords

Chemical substitution
Jahn-Teller distortion
LiMnO

Access to Document

10.1016/S0378-7753(99)00186-X

Cite this

@article{1a797e7e0e1d413e9cba933091d4c666,

title = "Enhancement of the electrochemical properties of Li1Mn2O4 through chemical substitution",

abstract = "The link between room temperature (RT) cycling failure for Li1Mn2O4-type spinels and elevated temperature (ET) failure of Li1.05Mn1.95O4 materials was investigated by physical and electrochemical characterization. Failure for both ET and RT cycling occurred at the end of discharge. Substantial evidence suggesting a link based on the cooperative Jahn-Teller distortion was found. Based on this knowledge, LiAlxMn2-xO4-δFZ materials were fabricated. These novel compounds were found to offer much improved capacity and ET performance than present generation materials. Three hundred cycles at 55°C resulted in 15\% capacity loss. Storage in charged and discharged state for 4 days at 70°C revealed less than 1.6\% irreversible capacity loss.",

keywords = "Chemical substitution, Jahn-Teller distortion, LiMnO",

author = "Amatucci, \{G. G.\} and N. Pereira and T. Zheng and I. Plitz and Tarascon, \{J. M.\}",

year = "1999",

month = sep,

doi = "10.1016/S0378-7753(99)00186-X",

language = "English (US)",

volume = "81-82",

pages = "39--43",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

note = "Proceedings of the 1998 Ninth International Meeting on Lithium Batteries ; Conference date: 12-07-1998 Through 17-07-1998",

}

TY - JOUR

T1 - Enhancement of the electrochemical properties of Li1Mn2O4 through chemical substitution

AU - Amatucci, G. G.

AU - Pereira, N.

AU - Zheng, T.

AU - Plitz, I.

AU - Tarascon, J. M.

PY - 1999/9

Y1 - 1999/9

N2 - The link between room temperature (RT) cycling failure for Li1Mn2O4-type spinels and elevated temperature (ET) failure of Li1.05Mn1.95O4 materials was investigated by physical and electrochemical characterization. Failure for both ET and RT cycling occurred at the end of discharge. Substantial evidence suggesting a link based on the cooperative Jahn-Teller distortion was found. Based on this knowledge, LiAlxMn2-xO4-δFZ materials were fabricated. These novel compounds were found to offer much improved capacity and ET performance than present generation materials. Three hundred cycles at 55°C resulted in 15% capacity loss. Storage in charged and discharged state for 4 days at 70°C revealed less than 1.6% irreversible capacity loss.

AB - The link between room temperature (RT) cycling failure for Li1Mn2O4-type spinels and elevated temperature (ET) failure of Li1.05Mn1.95O4 materials was investigated by physical and electrochemical characterization. Failure for both ET and RT cycling occurred at the end of discharge. Substantial evidence suggesting a link based on the cooperative Jahn-Teller distortion was found. Based on this knowledge, LiAlxMn2-xO4-δFZ materials were fabricated. These novel compounds were found to offer much improved capacity and ET performance than present generation materials. Three hundred cycles at 55°C resulted in 15% capacity loss. Storage in charged and discharged state for 4 days at 70°C revealed less than 1.6% irreversible capacity loss.

KW - Chemical substitution

KW - Jahn-Teller distortion

KW - LiMnO

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U2 - 10.1016/S0378-7753(99)00186-X

DO - 10.1016/S0378-7753(99)00186-X

M3 - Conference article

AN - SCOPUS:0033184623

SN - 0378-7753

VL - 81-82

SP - 39

EP - 43

JO - Journal of Power Sources

JF - Journal of Power Sources

T2 - Proceedings of the 1998 Ninth International Meeting on Lithium Batteries

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