Research on Battery State Estimation and Prediction Model Construction

Yan Gao*, Xiaolei Shi, Fang Wang, Shiqiang Liu, Tianyi Ma, Pengfei Yan, Ce Han

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The charging and discharging process of lithium-ion battery is the process of mutual conversion of electrical and chemical energy, and its performance will gradually decline during its use. However, in practical applications, it is difficult to accurately estimate and predict the state of lithium-ion batteries. In this study, the internal parameter evolution of the battery during storage is investigated by establishing a quasi-steady-state model of the lithium-ion battery, and a decay model is established for predicting the evolution of the battery. Using the established model, the correspondence between the external characteristics and the internal state of lithium-ion batteries containing composite electrodes is investigated, and the accurate estimation of the state of the composite electrodes is realized based on the steady-state voltage of the composite electrodes and the characteristics of their differential curves. The simulation results of the model are in high agreement with the experimental results, indicating that the established model can accurately describe the storage decay process of the battery.

Original languageEnglish
Title of host publicationProceedings of the TEPEN International Workshop on Fault Diagnostic and Prognostic - TEPEN2024-IWFDP
EditorsTongtong Liu, Fan Zhang, Shiqing Huang, Jingjing Wang, Fengshou Gu
PublisherSpringer Science and Business Media B.V.
Pages369-384
Number of pages16
ISBN (Print)9783031694820
DOIs
Publication statusPublished - 2024
Externally publishedYes
EventTEPEN International Workshop on Fault Diagnostics and Prognostics, TEPEN-IWFDP 2024 - Qingdao, China
Duration: 8 May 202411 May 2024

Publication series

NameMechanisms and Machine Science
Volume169 MMS
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

ConferenceTEPEN International Workshop on Fault Diagnostics and Prognostics, TEPEN-IWFDP 2024
Country/TerritoryChina
CityQingdao
Period8/05/2411/05/24

Keywords

  • Battery Decay Model
  • Life Prediction
  • Lithium-ion Battery
  • State Estimation
  • Whole Life Cycle

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