Modelling Lithium-Ion Battery Ageing in Electric Vehicle Applications–Calendar and Cycling Ageing Combination Effects
Publication Year: 2020
Author(s): Redondo-Iglesias E, Venet P, Pelissier S
Battery ageing is an important issue in e-mobility applications. Battery ageing in electric vehicles is composed of calendar and cycling ageing. The performance degradation of lithium-ion batteries has a strong influence on electric vehicles’ range and cost. Modelling capacity fade of lithium-ion batteries is not simple: many ageing mechanisms can exist and interact. Because calendar and cycling ageings are not additive, a major challenge is to model battery ageing in applications where the combination of cycling and rest periods are variable as, for example, in the electric vehicle application. In this article, an original approach to capacity fade modelling based on the formulation of reaction rate of a two-step reaction is proposed. A simple but effective model is obtained: based on only two differential equations and seven parameters, it can reproduce the capacity evolution of lithium-ion cells subjected to cycling profiles similar to those found in electric vehicle applications.
Source of Publication: Batteries
Vol/Issue: 6(1), 14:18pp.
DOI No.: DOI: 10.3390/batteries6010014
Publisher/Organisation: MDPI Multidisciplinary Digital Publishing Institute
Rights: Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)
Theme: Business Models | Subtheme: Battery Recycling & Reuse
Tags: Battery ageing model, Electric vehicle, Lithium-ion battery