Imperial College London
Alternate

Prof Gregory Offer

Faculty of Engineering, Department of Mechanical Engineering

Professor in Electrochemical Engineering
 
 
 
//

Contact

 

+44 (0)20 7594 7072gregory.offer Website

 
 
//

Location

 

720City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@unpublished{O'Kane:2022,
author = {O'Kane, SEJ and Ai, W and Madabattula, G and Alvarez, DA and Timms, R and Sulzer, V and Edge, JS and Wu, B and Offer, GJ and Marinescu, M},
publisher = {Royal Society of Chemistry},
title = {Lithium-ion battery degradation: how to model it},
url = {http://arxiv.org/abs/2112.02037v2},
year = {2022}
}
Download

RIS format (EndNote, RefMan)

TY  - UNPB
AB  - Predicting lithium-ion battery degradation is worth billions to the globalautomotive, aviation and energy storage industries, to improve performance andsafety and reduce warranty liabilities. However, very few published models ofbattery degradation explicitly consider the interactions between more than twodegradation mechanisms, and none do so within a single electrode. In thispaper, the first published attempt to directly couple more than two degradationmechanisms in the negative electrode is reported. The results are used to mapdifferent pathways through the complicated path dependent and non-lineardegradation space. Four degradation mechanisms are coupled in PyBaMM, an opensource modelling environment uniquely developed to allow new physics to beimplemented and explored quickly and easily. Crucially it is possible to see'inside' the model and observe the consequences of the different patterns ofdegradation, such as loss of lithium inventory and loss of active material. Forthe same cell, five different pathways that can result in end-of-life havealready been found, depending on how the cell is used. Such information wouldenable a product designer to either extend life or predict life based upon theusage pattern. However, parameterization of the degradation models remains as amajor challenge, and requires the attention of the international batterycommunity.
AU  - O'Kane,SEJ
AU  - Ai,W
AU  - Madabattula,G
AU  - Alvarez,DA
AU  - Timms,R
AU  - Sulzer,V
AU  - Edge,JS
AU  - Wu,B
AU  - Offer,GJ
AU  - Marinescu,M
PB  - Royal Society of Chemistry
PY  - 2022///
TI  - Lithium-ion battery degradation: how to model it
UR  - http://arxiv.org/abs/2112.02037v2
UR  - http://hdl.handle.net/10044/1/95789
ER  -
Download