动力电池的热性能是影响电池性能及安全性的重要因素,其热管理是国内外的研究热点。阐述了动力电池的产热机理,介绍了适用于动力电池冷却的相变材料(PCM)种类及特点,并从相变材料直接在动力电池热管理中的应用、定型相变材料在动力电池热管理中的应用和相变材料微胶囊在动力电池热管理中的应用3方面分析了相变材料在电池热管理系统中的应用效果。最后对基于相变材料的动力电池热管理系统存在的问题进行了分析,并对其发展趋势进行了展望。
Thermal performance of power battery has an important influence on its performance and safety,and battery thermal management is a research hotspot at home and abroad.The thermogenesis mechanism of power battery was expounded.Types and characteristics of phase change material (PCM) that were appropriate for power battery cooling were introduced.Based on phase change materials in the application of power battery thermal management directly,shape-stabilized phase change materials and microencapsulation of phase change materials in the application of the battery thermal management,the application effect of phase change materials in battery thermal management system were analyzed.Finally,the problems about power battery thermal management system based on phase change materials were analyzed,and prospected its tendency.
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基金资助
国家自然科学基金(51206083);浙江省自然科学基金(LY17E060001);浙江省公益性技术应用研究项目(2012C21063);浙江省教育厅科研计划项目(Y201121006)
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