▎ 摘　　要

NOVELTY - Preparing storage light heat storage type composite phase change material involves adding polyvinyl alcohol into de-ionized water, stirring, dissolving to obtain polyvinyl alcohol solution, mixing the cross-linking agent and heat conducting filler, stirring ultrasonically to obtain the first mixed solution, mixing the obtained first mixed solution with the obtained polyvinyl alcohol solution, stirring to disperse uniformly to obtain the second mixed solution, pre-freezing the obtained second mixed solution, freezing, drying to obtain the polyvinyl alcohol-based composite aerogel, mixing the obtained phase change material and the light storage particles to obtain phase change core material solution, performing vacuum immersing the polyvinyl alcohol-based composite gas gel into phase change core material solution, and cooling to room temperature to obtain the heat storage type composite phase change material. USE - Method for preparing storage light heat storage type composite phase change material used for energy storage (claimed). ADVANTAGE - The composite phase change material has high phase change enthalpy, high heat conductivity, low leakage rate, excellent light storage and heat storage performance.