State of Health Estimation of Lithium-Ion Batteries in Vehicle-to-Grid Applications Using Recurrent Neural Networks for Learning the Impact of Degradation Stress Factors
Abstract
This work presents an effective state of health indicator to indicate lithium-ion battery degradation based on a long short-term memory (LSTM) recurrent neural network (RNN) coupled with a sliding-window. The developed LSTM RNN is able to capture the underlying long-term dependencies of degraded cell capacity on battery degradation stress factors. The learning performance was robust when there was sufficient training data, with an error of < 5% if more than 1.15 years worth of data was supplied for training.
- Publication:
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arXiv e-prints
- Pub Date:
- May 2022
- DOI:
- 10.48550/arXiv.2205.07561
- arXiv:
- arXiv:2205.07561
- Bibcode:
- 2022arXiv220507561U
- Keywords:
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- Electrical Engineering and Systems Science - Systems and Control
- E-Print:
- 5 pages, 3 figures