Simulation research on thermal management module of composite battery combined with semiconductor refrigeration
Battery thermal management system is very important to ensure the working temperature environment of the battery and prolong its service life.In this paper,an idea of using semiconductor coolers combined with phase change materials for battery thermal management is proposed to im-prove the temperature accumulation inside the battery module during high-rate discharge.A battery heat dissipation model combining thermoelectric cooling and phase change materials was established,and the thermal performance of the module under different variable parameters was numerically cal-culated.The results show that the model can effectively reduce the maximum temperature and tem-perature difference of the battery module.The optimum TEC working current,thermal column di-ameter and PCM thermal conductivity are 0.8 A,6 mm and 1 W/(m·K),corresponding to the maxi-mum temperature of 42.3 ℃ and the maximum temperature difference of 5 ℃.This study introduces a new perspective for the thermal management of batteries with high-rate discharge,and provides new insights for the combination of thermoelectric cooling and phase change cooling.
lithium ion batterysemiconductor refrigerationphase change materialsbattery ther-mal managementfinite element simulation
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维普
