Performance evaluation of lithium battery pack based on MATLAB simulation with lumped parameter thermal model

The capacity of lithium batteries varies under different temperature conditions. However, many studies still neglect the influence on battery capacity. Besides, some only considered combination heat and electricity monomer failed to study performance pack in groups. This paper investigates a new method for dynamic situations that takes into consideration. After acquiring parameter through experiment, we can substitute parameters thermoelectric coupling model use MATLAB realize iterative calculation coupling. By combining grouping mode with model, simulate thermodynamic electrical properties cell pack. novelty is evident because focused instead single lumped thermal adopted. proposed this program process be solidified vehicle system. simulation, get available at initial temperatures, modes inconsistency parameters. results predicted by are compared MATLAB-FLUENT simulation. result reflects prediction about capacity, temperature, residual good precision.