Search Results for author: David Howey

Found 3 papers, 0 papers with code

Predicting Battery Lifetime Under Varying Usage Conditions from Early Aging Data

no code implementations17 Jul 2023 Tingkai Li, ZiHao Zhou, Adam Thelen, David Howey, Chao Hu

Using a newly generated dataset from 225 nickel-manganese-cobalt/graphite Li-ion cells aged under a wide range of conditions, we demonstrate a lifetime prediction of in-distribution cells with 15. 1% mean absolute percentage error using no more than the first 15% of data, for most cells.

Feature Engineering

Electrochemical impedance spectroscopy beyond linearity and stationarity -- a critical review

no code implementations17 Apr 2023 Noël Hallemans, David Howey, Alberto Battistel, Nessa Fereshteh Saniee, Federico Scarpioni, Benny Wouters, Fabio La Mantia, Annick Hubin, Widanalage Dhammika Widanage, John Lataire

In this paper, we review the concept of impedance beyond linearity and stationarity, and detail different methods to estimate this from measured current and voltage data, with emphasis on frequency domain approaches using multisine excitation.

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