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 language | English |
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Pages (from-to) | 2456-2461 |
Number of pages | 6 |
Journal | Energy Procedia |
Volume | 158 |
DOIs | |
Publication status | Published - Feb 2019 |
Externally published | Yes |
Event | 10th International Conference on Applied Energy, ICAE 2018 - Hong Kong, China Duration: 22 Aug 2018 → 25 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