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A study of 40 Ah lithium ion batteries at zero percent state of charge as a function of temperature

Lookup NU author(s): Dr Pierrot Attidekou, Dr Simon LambertORCiD, Dr Matthew Armstrong, Dr James Widmer, Emeritus Professor Keith Scott, Professor Paul ChristensenORCiD



This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).


A theoretical equivalent circuit model of two 40 Ah commercial batteries supplied by Saft was formulated to interpret electrochemical impedance spectra as a function of temperature at zero state-of-charge. The batteries were chosen to represent viable and non-viable products from the Saft production line. This paper is the first contribution from a project in Newcastle to develop a rapid, non-destructive analytical method for quality control on the battery production line. Using the model, it proved straightforward to discriminate between viable and non-viable batteries based on the temperature dependence of the electrochemical reaction kinetics at the electrodes, the average diffusion coefficients and the charge transfer resistances. Furthermore, as well as marked differences, for example, between the time constants, activation energies, polarisation resistances of the viable and non-viable batteries, the individual contributions of the anodes and cathodes in the batteries were de-convoluted and interpreted through the model framework. (C) 2014 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Attidekou PS, Lambert S, Armstrong M, Widmer J, Scott K, Christensen PA

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2014

Volume: 269

Pages: 694-703

Print publication date: 10/12/2014

Online publication date: 18/06/2014

Acceptance date: 11/06/2014

Date deposited: 08/10/2014

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier


DOI: 10.1016/j.jpowsour.2014.06.064


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