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Issue 13, 2011
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Cycling behaviour of Li/Li4Ti5O12 cells studied by electrochemical impedance spectroscopy

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Abstract

We studied the behaviour of Li/Li4Ti5O12 cells by electrochemical impedance spectroscopy to gain insight into the changes at the electrode/electrolyte interfaces during extensive cycling. A simple equivalent-circuit model is able to describe the impedance of the complete battery as a function of both state-of-charge and state-of-degradation. The formation of the solid-electrolyte interface and dendrite growth at the Li metal electrode have a strong influence on the impedance measurements although the battery performance is not significantly affected.

Graphical abstract: Cycling behaviour of Li/Li4Ti5O12 cells studied by electrochemical impedance spectroscopy

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Supplementary files

Article information


Submitted
21 Sep 2010
Accepted
31 Jan 2011
First published
01 Mar 2011

Phys. Chem. Chem. Phys., 2011,13, 6234-6240
Article type
Paper

Cycling behaviour of Li/Li4Ti5O12 cells studied by electrochemical impedance spectroscopy

N. Schweikert, H. Hahn and S. Indris, Phys. Chem. Chem. Phys., 2011, 13, 6234
DOI: 10.1039/C0CP01889A

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