锂电池热管理用TPE基柔性复合相变材料的研究进展OA北大核心CSTPCD

Because of its excellent flexibility,low cost and strong compatibility,thermoplastic elastomer(TPE)can be used as a carrier for phase change materials(PCM),and the flexible composite phase change materials(FCPCM)prepared by combining it with PCM and thermally conductive fillers have a large application prospect in the field of battery thermal management(BTM).In this paper,the research results of TPE-based FCPCM in BTM at home and abroad were summarized,the commonly used TPE materials were classified,and their working principles and preparation methods were introduced in detail.To address the problems of low thermal conductivity,low shape stability and poor mechanical properties of PCM in BTM applications,this paper focused on the thermophysical properties(latent heat of phase change and thermal conductivity),battery thermal management effects(maximum temperature and maximum temperature difference),mechanical properties and vibration resistance of TPE-based FCPCMs.The current limitations of FCPCM in BTM were pointed out and the future directions were prospected.The search for potential flexible materials,synergistic binary flexible carriers,and binary thermally conductive fillers,improving the insulation,dielectric properties,and low-temperature adaptability of FCPCM should be the main research directions in the future.Enhancing the temperature control of FCPCM for lithium batteries under vibration conditions also needed to be further explored.This review provided an important reference value for further research and development of TPE-based FCPCM in BTM.