Exploration of lithium battery electrode calendering process based on discrete element method
With the introduction of the"Dual Carbon Goal,"lithium batteries have taken on an unprecedented role in carbon reduction.The calendering process plays a vital role in shaping lithium battery electrodes,thus impacting their microstructure and mechanical properties,which significantly determine the overall battery performance.This study employs the discrete element method to investigate the impact of the calendering process on the microstructure and mechanical properties of lithium battery electrodes.The results show that as the calendering uniformity increases,the electrode porosity initially decreases linearly,and then it gradual decreases,deviating from a strictly linear pattern.The electrode density linearly increases,and calendering enhances the coordination between electrode particles.Furthermore,the internal stress in the lithium battery electrode increases exponentially during calendering,with the z-direction stress increasing faster than in the x-and y-directions.
lithium battery electrodeelectrode calendaringdiscrete element method
万方数据
维普
