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Optimizing Cycle Life Prediction of Lithium-ion Batteries via a Physics-Informed Model
April 29, 2024, 4:41 a.m. | Constantin-Daniel Nicolae, Sara Sameer, Nathan Sun, Karena Yan
cs.LG updates on arXiv.org arxiv.org
Abstract: Accurately measuring the cycle lifetime of commercial lithium-ion batteries is crucial for performance and technology development. We introduce a novel hybrid approach combining a physics-based equation with a self-attention model to predict the cycle lifetimes of commercial lithium iron phosphate graphite cells via early-cycle data. After fitting capacity loss curves to this physics-based equation, we then use a self-attention layer to reconstruct entire battery capacity loss curves. Our model exhibits comparable performances to existing models …
abstract arxiv attention batteries cells commercial cs.lg development equation hybrid hybrid approach life lithium lithium-ion batteries measuring novel performance physics physics-informed prediction self-attention technology type via
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