The challenge and opportunity of battery lifetime prediction from field data

By Valentin Sulzer, Peyman Mohtat, A. Aitio, Suhak Lee, Yen T. Yeh, F. Steinbacher, Muhammad Umer Khan, Jang-Woo Lee, Jason B. Siegel, Anna G. Stefanopoulou and 1 more. Joule, 2021

335 citations recorded by the source corpus.

Summary Accurate battery life prediction is a critical part of the business case for electric vehicles, stationary energy storage, and nascent applications such as electric aircraft. Existing methods are based on relatively small but well-designed lab datasets and controlled test conditions but incorporating field data is crucial to build a complete picture of how cells age in real-world situations. This comes with additional challenges because end-use applications have uncontrolled operating conditions, less accurate sensors, data collection and storage concerns, and infrequent access to validation checks. We explore a range of techniques for estimating lifetime from lab and field data and suggest that combining machine learning approaches with physical models is a promising method, enabling inference of battery life from noisy data, assessment of second-life condition, and extrapolation to future usage conditions. This work highlights the opportunity for insights gained from field data to reduce battery costs and improve designs.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/02063c1d8d1ebbb930ac1003edf8eba406480adc

Citations in the corpus