In order to investigate the impact of cooling plate channel structural
parameters on the cooling performance of battery modules, a heat generation
model for LiFePO4 batteries was established. Based on the model, the 1C
discharge process of LiFePO4 batteries at room temperature (25?) was
simulated, and relevant heat release data were obtained. On this basis,
three different cooling plate structures (Model A, Model B, Model C) were
designed, and the cooling performance of the cooling liquid (50% water and
50% ethylene glycol) for the battery module was analyzed by simulation at
different mass flow rates (0.15Kg/s, 0.18Kg/s, 0.21Kg/s), along with the
pressure, temperature difference and flow rate of the cooling channel. The
results showed that the uniformity of the flow rate in the channel can
reduce the temperature difference. Under the same mass flow rate, the
temperature difference of the battery module on the same surface between
Model A and Model C was 1.1?C, but too many channels would increase the
pressure drop. The pressure drop of Model C was more than 10 times that of
Model B. Therefore, it is necessary to design the channel structure
reasonably while ensuring the heat dissipation effect. Finally, based on the
simulation results, beneficial suggestions for the cooling and cooling plate
design and manufacture of energy storage container battery modules are
proposed.