Battery thermal management performance simulation based on composite phase change material
With the continuous development of energy storage technology,lithium-ion batteries are widely applied in electric vehicles,energy storage systems and other fields due to their high energy density.However,the performance of lithium-ion batteries is significantly affected by temperature,either too high or too low temperature will affect its performance and the suitable operating temperature of the batteries is 25-45℃,so battery thermal management is indispensable.The thermal management technology based on phase change material has the advantages of good temperature uniformity and no need for additional energy input,thus has attracted widespread attention from researchers.The influence of the geometry of the composite phase change material(CPCM)structure was investigated using finite element method on the thermal management performance for the typical prismatic battery in this work.The simulation results showed that CPCM with better thermal conductivity had a stronger heat dissipation effect when used in battery thermal management.When the amount of phase change material was the same,the temperature distribution of the cylindrical structure was more uniform and had better thermal management performance.
国家科技期刊平台
NSTL
万方数据
