hase change energy storage material

hase change energy storage materials are one of the most effectiveenergy storage methods. Phase change energy storage materials release(or store) energy with exothermic or endothermic characteristics, andhave the advantages of high heat storage and small changes in latentheat. At a constant temperature, phase change energy storage materialscan store or release energy during a phase change. At present, phasechange energy storage technology has a wide range of applications inmany fields, such as solar thermal utilization, industrial waste heat,waste heat recovery, energy-saving heating, cooling buildings and otherfields [1–3]. Phase change energy storage materials have satisfactoryperformances, and they have been attracting increasing attention fromall over the world. Phase change energy storage materials can beclassified as organic phase change composite materials and inorganicphase change composite materials. Organic phase change materials aremainly paraffin, acetic acid and other organic matter, and inorganicphase change materials are mainly crystalline hydrated salts, moltensalts, metals or alloys [4,5]. Paraffin is a phase change thermal storagematerial, that has a large phase transition temperature range(10–80 °C), high phase change enthalpy (200–300 J/g), large energystorage density, moderate price, and stable chemical properties. How-ever, leakage of phase change materials during the phase change pro-cess limits its application to some extent. To overcome this problem, amatrix material is introduced to fabricate a stable phase change mate-rial with paraffin. The phase change material is created with a