Predicting battery aging trajectory via a migrated aging model and Bayesian Monte Carlo method

Xiaopeng TANG, Ke YAO, Changfu ZOU, Boyang LIU, Furong GAO*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

8 Citations (Scopus)

Abstract

Thanks to the fast development in battery technologies, the lifespan of the lithium-ion batteries increases to more than 3000 cycles. This brings new challenges to reliability related researches because the experimental time becomes overly long. In response, a migrated battery aging model is proposed to predict the battery aging trajectory. The normal-speed aging model is established based on the accelerate aging model through a migration process, whose migration factors are determined through the Bayesian Monte Carlo method and the stratified resampling technique. Experimental results show that the root-mean-square-error of the predicted aging trajectory is limited within 1% when using only 25% of the cyclic aging data for training. The proposed method is suitable for both offline prediction of battery lifespan and online prediction of the remaining useful life.

Original languageEnglish
Pages (from-to)2456-2461
Number of pages6
JournalEnergy Procedia
Volume158
DOIs
Publication statusPublished - Feb 2019
Externally publishedYes
Event10th International Conference on Applied Energy, ICAE 2018 - Hong Kong, China
Duration: 22 Aug 201825 Aug 2018

Bibliographical note

Publisher Copyright:
© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy.

Funding

This work is supported, in part, by National Natural Science Foundation of China project (61227005) and Guangdong scientific and technological project (2017B010120002).

Keywords

  • Aging trajectory prediction
  • Bayesian Monte Carlo
  • Lithium-ion batteries
  • Model migration
  • State-of-health

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