有机相变储能材料的研究进展

Progress of Organic Phase Change Energy Storage Materials

有机相变储能材料(PCMs)具有储能密度高、腐蚀性小、性能稳定、毒性小、不易出现相分离和过冷现象等优点,成为目前蓄能技术领域主流应用材料之一。本文主要综述了各类有机PCMs的材料特性,针对其导热系数普遍较低的共性问题,介绍了通过添加高热导率材料和封装PCMs两种强化传热途径的最新研究成果,并浅谈了有机PCMs在建筑节能、太阳能利用及冷却电子设备等中低温储能技术中的实际应用情况。最后,总结了有机PCMs目前存在的一些瓶颈问题及未来研究的重点方向。

Organic phase change materials (PCMs) become one of the mainstream application materials in the field of energy storage technology as they have advantages of high thermal storage density, non-corrosive, chemically stable, non-toxic, no phase segregation, and no or little supercooling. The material properties of organic PCMs were introduced in this paper. In view of the existing problems of organic PCMs low thermal conductivity, the latest research results for enhancing the thermal conductivity of organic PCMs by incorporating high thermal conductivity additives and encapsulating PCMs technology were recommended. The application of the organic PCMs in low-temperature energy storage technology such as building energy saving, solar energy utilization and cooling electronic equipment was discussed. Finally, some research problems and development rends of the organic PCMs were summarized.