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- W4313484614 abstract "For Prognostics and Health Management (PHM) of Lithium-ion (Li-ion) batteries, many models have been established to characterize their degradation process. The existing empirical or physical models can reveal important information regarding the degradation dynamics. However, there are no general and flexible methods to fuse the information represented by those models. Physics-Informed Neural Network (PINN) is an efficient tool to fuse empirical or physical dynamic models with data-driven models. To take full advantage of various information sources, we propose a model fusion scheme based on PINN. It is implemented by developing a semi-empirical semi-physical Partial Differential Equation (PDE) to model the degradation dynamics of Li-ion batteries. When there is little prior knowledge about the dynamics, we leverage the data-driven Deep Hidden Physics Model (DeepHPM) to discover the underlying governing dynamic models. The uncovered dynamics information is then fused with that mined by the surrogate neural network in the PINN framework. Moreover, an uncertainty-based adaptive weighting method is employed to balance the multiple learning tasks when training the PINN. The proposed methods are verified on a public dataset of Li-ion Phosphate (LFP)/graphite batteries." @default.
- W4313484614 created "2023-01-06" @default.
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- W4313484614 date "2023-01-02" @default.
- W4313484614 modified "2023-10-18" @default.
- W4313484614 title "Physics-Informed Neural Networks for Prognostics and Health Management of Lithium-Ion Batteries" @default.
- W4313484614 doi "https://doi.org/10.48550/arxiv.2301.00776" @default.
- W4313484614 hasPublicationYear "2023" @default.
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