A novel experimental technique for use in fast parameterisation of equivalent circuit models for lithium-ion batteries
File(s)
Published version
Author(s)
Samieian, Mohammad Amin
Hales, Alastair
Patel, Yatish
Type
Journal Article
Abstract
Battery models are one of the most important tools for understanding the behaviour of batteries. This is particularly important for the fast-moving electrical vehicle industry, where new battery chemistries are continually being developed. The main limiting factor on how fast battery models can be developed is the experimental technique used for collection of data required for model parametrisation. Currently this is a very time-consuming process. In this paper, a fast novel parametrisation testing technique is presented. A model is then parametrised using this testing
technique and compared to a model parametrised using current common testing techniques. This comparison is done using a WLTP (Worldwide Harmonised Light Vehicle Test Procedure) drive cycle. As part of the validation, the experiments are conducted at different temperatures and repeated using two different temperature control methods: climate chamber and a Peltier element temperature control method. The new technique introduced in this paper, named AMPP (Accelerated model parametrisation procedure), is as good as GITT (Galvanostatic intermittent titration technique) for parametrisation of ECM’s (equivalent circuit model’s), however it is 90% faster. When using experimental data from a climate chamber a model parametrised using GITT was marginally better than AMPP, however, when using experimental data using conductive control, such as the ICP
(isothermal cooling platform), a model parametrised using AMPP performed as well as GITT at 25°C and better than GITT at 10°C.
technique and compared to a model parametrised using current common testing techniques. This comparison is done using a WLTP (Worldwide Harmonised Light Vehicle Test Procedure) drive cycle. As part of the validation, the experiments are conducted at different temperatures and repeated using two different temperature control methods: climate chamber and a Peltier element temperature control method. The new technique introduced in this paper, named AMPP (Accelerated model parametrisation procedure), is as good as GITT (Galvanostatic intermittent titration technique) for parametrisation of ECM’s (equivalent circuit model’s), however it is 90% faster. When using experimental data from a climate chamber a model parametrised using GITT was marginally better than AMPP, however, when using experimental data using conductive control, such as the ICP
(isothermal cooling platform), a model parametrised using AMPP performed as well as GITT at 25°C and better than GITT at 10°C.
Date Issued
2022-09-13
Date Acceptance
2022-09-07
Citation
Batteries, 2022, 8 (9), pp.1-18
ISSN
2313-0105
Publisher
MDPI
Start Page
1
End Page
18
Journal / Book Title
Batteries
Volume
8
Issue
9
Copyright Statement
© 2022 by the authors.
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Innovate UK
Identifier
https://www.mdpi.com/2313-0105/8/9/125
Grant Number
133377
Subjects
Science & Technology
Physical Sciences
Technology
Electrochemistry
Energy & Fuels
Materials Science, Multidisciplinary
Materials Science
equivalent circuit model (ECM)
HPPC
GITT
AMPP
parametrisations
lithium-ion
battery
PHYSICOCHEMICAL MODEL
GRADIENTS
DESIGN
CELLS
TAB
Publication Status
Published
Date Publish Online
2022-09-13