Lithium-ion Batteries Aging Motinoring Througth Open Circuit Voltage (OCV) Curve Modelling and Adjustment

Loic Lavigne, Jocelyn Sabatier, Junior Mbala Francisco, Franck Guillemard, Agnieszka Noury

2016

Abstract

This paper is a contribution to lithium-ion batteries modeling tacking into account aging effects. It first analyses the impact of aging on electrode stoichiometry and then on lithium-ion cell Open Circuit Voltage (OCV) curve. Through some hypotheses and an appropriate definition of the cell state of charge, it shows that each electrode equilibrium potential, but also the whole cell equilibrium potential can be modelled by a polynomial that requires only one adjustment parameter during aging. An adjustment algorithm, based on the idea that for two fixed OCVs, the state of charge between these two equilibrium states is unique for a given aging level, is then proposed. Its efficiency is evaluated on a battery pack constituted of four cells. This adjustment parameter can thus be viewed as a State Of Health (SOH) or aging indicator.

Paper Citation

in Harvard Style

Lavigne L., Sabatier J., Francisco J., Guillemard F. and Noury A. (2016). Lithium-ion Batteries Aging Motinoring Througth Open Circuit Voltage (OCV) Curve Modelling and Adjustment . In Proceedings of the 13th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-758-198-4, pages 57-67. DOI: 10.5220/0005961400570067

in Bibtex Style

@conference{icinco16,
author={Loic Lavigne and Jocelyn Sabatier and Junior Mbala Francisco and Franck Guillemard and Agnieszka Noury},
title={Lithium-ion Batteries Aging Motinoring Througth Open Circuit Voltage (OCV) Curve Modelling and Adjustment},
booktitle={Proceedings of the 13th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2016},
pages={57-67},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005961400570067},
isbn={978-989-758-198-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 13th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - Lithium-ion Batteries Aging Motinoring Througth Open Circuit Voltage (OCV) Curve Modelling and Adjustment
SN - 978-989-758-198-4
AU - Lavigne L.
AU - Sabatier J.
AU - Francisco J.
AU - Guillemard F.
AU - Noury A.
PY - 2016
SP - 57
EP - 67
DO - 10.5220/0005961400570067