Capacity estimation of lithium-ion batteries with automatic feature extraction and graph-enhanced LSTM

Xu, Jiangtao; Qu, Jie; Xu, Haitao

doi:10.1016/j.est.2024.111131

Journal of Energy Storage

2024

DOI: 10.1016/j.est.2024.111131

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Capacity estimation of lithium-ion batteries with automatic feature extraction and graph-enhanced LSTM

Jiangtao Xu,

Jie Qu,

Haitao Xu

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2024

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Cited by 2 publications

References 41 publications

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Capacity estimation of lithium-ion battery based on soft dynamic time warping, stratified random sampling and pruned residual neural networks

Xu,

2024

Engineering Applications of Artificial Intelligence

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Capacity estimation of lithium-ion battery based on soft dynamic time warping, stratified random sampling and pruned residual neural networks

Xu,

2024

Engineering Applications of Artificial Intelligence

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Developing an Innovative Seq2Seq Model to Predict the Remaining Useful Life of Low-Charged Battery Performance Using High-Speed Degradation Data

Bae,

Lee,

Moon

2024

Batteries

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This study introduces a novel Sequence-to-Sequence (Seq2Seq) deep learning model for predicting lithium-ion batteries’ remaining useful life. We address the challenge of extrapolating battery performance from high-rate to low-rate charging conditions, a significant limitation in previous studies. Experiments were also conducted on commercial cells using charge rates from 1C to 3C. Comparative analysis of fully connected neural networks, convolutional neural networks, and long short-term memory networks revealed their limitations in extrapolating to untrained conditions. Our Seq2Seq model overcomes these limitations, predicting charging profiles and discharge capacity for untrained, low-rate conditions using only high-rate charging data. The Seq2Seq model demonstrated superior performance with low error and high curve-fitting accuracy for 1C and 1.2C untrained data. Unlike traditional models, it predicts complete charging profiles (voltage, current, temperature) for subsequent cycles, offering a comprehensive view of battery degradation. This method significantly reduces battery life testing time while maintaining high prediction accuracy. The findings have important implications for lithium-ion battery development, potentially accelerating advancements in electric vehicle technology and energy storage.

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Capacity estimation of lithium-ion batteries with automatic feature extraction and graph-enhanced LSTM

Cited by 2 publications

References 41 publications

Capacity estimation of lithium-ion battery based on soft dynamic time warping, stratified random sampling and pruned residual neural networks

Capacity estimation of lithium-ion battery based on soft dynamic time warping, stratified random sampling and pruned residual neural networks

Developing an Innovative Seq2Seq Model to Predict the Remaining Useful Life of Low-Charged Battery Performance Using High-Speed Degradation Data

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