期刊
ETRANSPORTATION
卷 5, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.etran.2020.100078
关键词
Lithium-ion capacitor; Remaining useful life prediction; Denoising; Convolutional neural network; Long short-term memory
资金
- National Natural Science Foundation of China [51822706, 51777200]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDA21050302]
- Dalian National Laboratory For Clean Energy (DNL) Cooperation Fund, the CAS [DNL201912, DNL201915]
Lithium-ion capacitor is a hybrid electrochemical energy storage device which combines the merits of lithium-ion battery and electric double-layer capacitor. It is of great importance to monitor the real capacity to evaluate failures of lithium-ion capacitors. Remaining Useful Life (RUL), which is referred to remaining cycle number before reaching its End of Life (EOL) threshold, is a key part in the prognostics and health management and an important indicator of the depletion capacity of lithium-ion capacitor. In this paper, we propose a hybrid neural network which combine with the convolutional neural network and Bidirectional Long Short-Term Memory Network (Bi-LSTM), the data will be used to train this model. Finally, the verifications among different prediction horizons and other methods are discussed. According to the experimental and analysis results, the proposed approach has high reliability and prediction accuracy, which can be applied to battery monitoring and prognostics, as well as generalized to other prognostic applications. (C) 2020 Elsevier B.V. All rights reserved.
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