Batteries (Dec 2022)

Prediction of Battery Cycle Life Using Early-Cycle Data, Machine Learning and Data Management

  • Belen Celik,
  • Roland Sandt,
  • Lara Caroline Pereira dos Santos,
  • Robert Spatschek

DOI
https://doi.org/10.3390/batteries8120266
Journal volume & issue
Vol. 8, no. 12
p. 266

Abstract

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The prediction of the degradation of lithium-ion batteries is essential for various applications and optimized recycling schemes. In order to address this issue, this study aims to predict the cycle lives of lithium-ion batteries using only data from early cycles. To reach such an objective, experimental raw data for 121 commercial lithium iron phosphate/graphite cells are gathered from the literature. The data are analyzed, and suitable input features are generated for the use of different machine learning algorithms. A final accuracy of 99.81% for the cycle life is obtained with an extremely randomized trees model. This work shows that data-driven models are able to successfully predict the lifetimes of batteries using only early-cycle data. That aside, a considerable reduction in errors is seen by incorporating data management and physical and chemical understanding into the analysis.

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