Publication detail

Multiscale Modelling of Li-Ion Battery Volume Expansion

MAČÁK, M. VYROUBAL, P.

Original Title

Multiscale Modelling of Li-Ion Battery Volume Expansion

Type

conference paper

Language

English

Original Abstract

Mechanical characteristics of Li-ion batteries play an important part in the design of electric devices or energy storage systems. Proper mechanical design can increase the safety and the longevity of devices. Apart from external forces, Li-ion batteries also experience internal volume changes due to inherent physical processes, especially volume changes caused by intercalation and deintercalation of lithium ions into electrode materials. Currently, these changes are mainly studied experimentally using complex methods, while numerical simulations of these processes are surprisingly rare. This works presents different numerical approaches for studying internal volume changes in Li-ion batteries. The results show that it is possible to study volume changes at different length scales, but it is necessary to apply a suitable simplification of the model to obtain macroscopic deformation.

Keywords

Li-ion battery; numerical simulation; volume expansion; intercalation; electrochemistry

Authors

MAČÁK, M.; VYROUBAL, P.

Released

26. 4. 2022

Publisher

Brno University of Technology, Faculty of Electrical Engineering and Communication

Location

Brno

ISBN

978-80-214-6029-4

Book

Proceedings I of the 28 th Conference STUDENT EEICT 2022 General papers

Edition

1

Pages from

378

Pages to

382

Pages count

5

URL

https://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2022_sbornik_1_v2.pdf

BibTex

@inproceedings{BUT179108,
  author="Martin {Mačák} and Petr {Vyroubal}",
  title="Multiscale Modelling of Li-Ion Battery Volume Expansion",
  booktitle="Proceedings I of the 28 th Conference STUDENT EEICT 2022 General papers",
  year="2022",
  series="1",
  pages="378--382",
  publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication",
  address="Brno",
  isbn="978-80-214-6029-4",
  url="https://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2022_sbornik_1_v2.pdf"
}