▎ 摘　　要

NOVELTY - A sugar alcohol microcapsule is used for phase change energy storage. The particle size is 140-300 nm. USE - Sugar alcohol microcapsule used for phase change energy storage (claimed). ADVANTAGE - The method is easy, time efficient, has simple raw materials, has high product yield, and has no added acid or alkali. The product has improved thermal stability and thermal conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of sugar alcohol microcapsule comprising taking sugar alcohol saturated aqueous solution, carrying out recrystallization, adding graphene oxide to aqueous phase, and adding 5-6 mL 3-aminopropyltriethoxysilane and 7-11 mL ethyl orthosilicate to 15 mL saturated aqueous solution of sugar alcohol.