A Reproducible Deep Learning Workflow for Predicting Lithium-Ion Battery Performance Using Multichannel Cycling Data

This protocol presents a reproducible deep-learning workflow for predicting lithium-ion battery performance using multichannel cycling data. To address limitations in existing data-driven models related to multisource information integration and feature representation, the method utilizes five publicly available battery datasets. The inputs include raw operational signals, including voltage, current, capacity, temperature, internal resistance, and coulombic and energy efficiency, together with engineered features such as incremental capacity, differential voltage, and energy throughput. The protocol details standardized preprocessing procedures for constructing battery-level temporal tensors across multiple observation windows. To improve reproducibility, the workflow evaluates candidate neural-network architectures, including deep neural networks, convolutional neural networks (CNNs), long short-term memory (LSTM) networks, CNN-LSTM, and transformer-based models, using fixed random seeds, repeated evaluation runs, and environment tracking. Representative results demonstrated that the CNN-LSTM architecture with integrated multichannel data and engineered features achieved favorable predictive performance among the evaluated models. The selected configuration achieved a mean absolute error of 0.024 and an R² value of 0.955 for state-of-health estimation while maintaining high predictive performance for remaining useful life and dischargeable-energy estimation. Ablation and robustness analyses further demonstrated the contribution of multichannel feature integration and the stability of the reproducibility-focused workflow across repeated evaluations. This standardized methodology provides a reproducible framework for battery lifecycle management and predictive modeling under diverse operating conditions.