microcapsule container, such as a polymer microcapsule shell. Micro-capsules can isolate the phase change material from the external en-vironment and reduce the reaction between the phase change materialand the external environment. Li [6] et al. used in situ emulsification tofabricate a phase change material, and SiO2-coated paraffin micro-capsules were prepared by interface hydrolysis and polycondensation oftetraethylorthosilicate (TEOS). The latent heat of fusion and solidifi-cation latent heat of the resultant material were 45.5 J/g and 43.8 J/g,