Publication result detail

Estimating the Equivalent Circuit of Lithium-Ion Batteries During Operation

VAŠÍČEK, J.; VYROUBAL, P.

Original Title

Estimating the Equivalent Circuit of Lithium-Ion Batteries During Operation

English Title

Estimating the Equivalent Circuit of Lithium-Ion Batteries During Operation

Type

Paper in proceedings (conference paper)

Original Abstract

This paper deals with the issue of estimating the equivalent circuit of lithium-ion cells during normal operation. The study explores fundamental battery models, such as the simplified Randles circuit and the full Randles circuit. Conventional methods for model estimation, including Electrochemical Impedance Spectroscopy (EIS) and Galvanostatic Intermittent Titration Technique (GITT) are examined. The research extends into the real-world data analysis, gained from a home photovoltaic system. Using these data, an algorithm to estimate the equivalent circuit model during battery operation is evaluated. The study investigates the correlation between the proposed algorithm's outcomes and results obtained through EIS and GITT methods.

English abstract

This paper deals with the issue of estimating the equivalent circuit of lithium-ion cells during normal operation. The study explores fundamental battery models, such as the simplified Randles circuit and the full Randles circuit. Conventional methods for model estimation, including Electrochemical Impedance Spectroscopy (EIS) and Galvanostatic Intermittent Titration Technique (GITT) are examined. The research extends into the real-world data analysis, gained from a home photovoltaic system. Using these data, an algorithm to estimate the equivalent circuit model during battery operation is evaluated. The study investigates the correlation between the proposed algorithm's outcomes and results obtained through EIS and GITT methods.

Keywords

Lithium-ion batteries, battery cell model, Randles circuit, EIS, GITT, SoC, SoH, BMS

Key words in English

Lithium-ion batteries, battery cell model, Randles circuit, EIS, GITT, SoC, SoH, BMS

Authors

VAŠÍČEK, J.; VYROUBAL, P.

RIV year

2025

Released

15.04.2024

Publisher

Brno University of Technology, Faculty of Electrical Engineering and Communication

Location

Brno

ISBN

978-80-214-6230-4

Book

Proceedings II of the 30th Conference STUDENT EEICT 2024

ISBN

2788-1334

Periodical

Proceedings II of the Conference STUDENT EEICT

State

Czech Republic

Pages from

117

Pages to

120

Pages count

4

URL

http://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2024_sbornik_2.pdf

BibTex

@inproceedings{BUT190027,
  author="Jakub {Vašíček} and Petr {Vyroubal}",
  title="Estimating the Equivalent Circuit of Lithium-Ion Batteries During Operation",
  booktitle="Proceedings II of the 30th Conference STUDENT EEICT 2024",
  year="2024",
  journal="Proceedings II of the Conference STUDENT EEICT",
  pages="117--120",
  publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication",
  address="Brno",
  isbn="978-80-214-6230-4",
  url="http://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2024_sbornik_2.pdf"
}