TY - JOUR
AU - Sun, Dan
AB - A well-designed battery structure can significantly improve battery performances while optimizing space utilization to increase energy density. However, the quantitative analysis and the underlying mechanism have rarely been explored, including electrochemical performances and heat and stress distributions under quantitative conditions. In this work, an electrochemical-thermo-mechanical coupling model was developed to investigate the influence of the wound structure on battery behaviors in pouch and cylindrical cells. The results demonstrated that cylindrical cells performed higher discharge capacity and Coulombic efficiency, but lower heat generation compared with pouch cells. Additionally, cylindrical cells exhibited more uniform distributions of electrolyte concentration, local current density, overpotential, surface diffusion-induced stress, and strain during battery cycling. Moreover, cylindrical cells are more favorable for battery operation across a wide temperature range. This study provides a theoretical foundation for the understanding of the electrochemical-thermal–mechanical coupling mechanisms during battery cycling and a practical guide for battery structural design.
TI - An electrochemical-thermal–mechanical coupling model for quantitative comparison on battery wound structures
JO - Ionics
DO - 10.1007/s11581-025-06328-8
DA - 2025-06-01
UR - https://www.deepdyve.com/lp/springer-journals/an-electrochemical-thermal-mechanical-coupling-model-for-quantitative-RTznLTMTGS
SP - 5827
EP - 5836
VL - 31
IS - 6
DP - DeepDyve
ER -