Natural Science Foundation of China [52377181]; Natural Science Foundation of Hunan Province of China [2024JJ30077]
机构署名:
本校为第一且通讯机构
摘要:
Conventional lithium-ion cell state models assume a constant gas production rate for each chemical reaction, reducing the prediction accuracy of thermal and mechanical states. The heat and gas evolution in cells involves a strongly-nonlinear dynamic process, and existing studies lack precise identification methods for dynamic gas production rates. This study proposes an identification approach for temperature-dependent gas production rates of pouch lithium-ion cells. A simple and low-cost experiment for the inverse calculation is designed to capture the temperature and height data of cells und...