Structural Design of Lithium Battery Module and Optimization of its Key Parameters
To ensure that the designed lithium-ion battery module has good heat dissipation effect.A three-dimensional geomet-ric and finite element simulation model of the lithium-ion battery module was established.A single unit heat generation and dissi-pation testing platform has been established.The accuracy of the simulation model was verified through comparison between sin-gle cell simulation and experimental data.Subsequently,the simulation model of the battery module was used to analyze the ef-fects of key parameters such as battery spacing,inlet wind speed,and environmental temperature on the temperature at each posi-tion,maximum temperature,and average temperature during the discharge process of the battery module.It was found that when the battery spacing is about 7.5mm,the heat dissipation of the battery pack is the best,with a maximum temperature of 37.3℃.When the ambient temperature difference is 5℃,the maximum temperature difference during battery discharge is 3.4℃,and the inlet wind speed can greatly adjust the temperature inside the battery pack.The design method and analysis results can provide a certain basis for the structural design and key parameter selection of air-cooled lithium battery modules.
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维普
