Research Progress on Corrosion Behavior of Molten Salt and Molten Salt Storage Materials for Solar Photothermal Power Generation

Abstract

Concentrated solar power (CSP) photothermal power generation technology utilizes renewable clean energy solar energy to convert thermal energy into electrical energy, offering promising application prospects. In CSP technology, molten salt serves as the medium for heat absorption and storage. Thus, the research and development of molten salt and salt storage materials are key. In this paper, the corrosion behaviors of different salt storage materials in molten salt media such as molten nitrate, carbonate, chlorine and fluoride salts were analyzed from the perspectives of corrosion kinetics, corrosion products and molten salt intrinsic properties. Finally, molten salt and salt storage materials for solar photothermal power generation were summarized, and the prospects were discussed.

Keywords

• solar photothermal power generation; molten salt storage material; molten salt; corrosion kinetics; corrosion products