Energy Storage Science and Technology ›› 2023, Vol. 12 ›› Issue (2): 398-430.doi: 10.19799/j.cnki.2095-4239.2022.0521

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Review of high-temperature phase change heat storage material preparation and applications

Wei LIU1(), Zhenming LI1(), Mingyang LIU1, Cenyu YANG1, Chao MEI2, Ying LI2   

  1. 1.Energy Storage and Novel Technology of Electrical Engineering Department, China Electric Power Research Institute Limited Company, Beijing 100192, China
    2.State Grid Xiamen Electric Power Supply Company, Xiamen 361004, Fujian, China
  • Received:2022-09-13 Revised:2022-10-21 Online:2023-02-05 Published:2023-02-24
  • Contact: Zhenming LI E-mail:liuwei3@epri.sgcc.com.cn;lizhenming@epri.sgcc.com.cn

Abstract:

Faced with the demand for steam heating in the industrial field, we will vigorously develop high-temperature phase change heat storage technology, effectively adjust the peak and valley loads of power grids, effectively promote the replacement of electric energy, and help achieve the goal of "carbon peak and carbon neutrality." This article comprises a literature review of the principles and methods of phase change material optimization. High-temperature phase change materials are also classified. The latest research trends of high-temperature composite phase change materials are emphatically described, including metal foam/inorganic salt, graphite foam/inorganic salt, expanded graphite/inorganic salt, porous ceramic/inorganic salt, and porous clay mineral/inorganic salt composite phase change materials. Notably, high-temperature composite phase change materials can improve the low thermal conductivity and stability of inorganic salts and corrosion of sealing materials. Next, the preparation methods of high-temperature phase change materials are summarized; the advantages and disadvantages of the infiltration method, sol-gel method, and cold pressing sintering method in practical application are highlighted. In comparison, the cold pressing sintering method is the most cost-effective for preparing salt matrix composites. Finally, the application statuses of high-temperature composite phase change materials in industrial waste heat recovery, power peak regulation, and solar thermal power generation are discussed, providing a basis for studying the capacity allocation and economic evaluation methods of high-temperature phase change heat storage systems of the steam type under different scenarios. This review has a certain reference value for the development of high-temperature phase change heat storage technology.

Key words: high temperature heat storage, phase change material, preparation method, thermal storage device

CLC Number: