Concentrated solar power (CSP) plants with thermal energy storage (TES) system are emerging as one kind of the most promising power plants in the future renewable energy system, since they can supply dispatchable and low-cost electricity with abundant but intermittent solar energy. In order to significantly reduce the levelized cost of electricity (LCOE) of the present commercial CSP plants, the next generation CSP technology with higher process temperature and energy efficiency is being developed. The TES system in the next generation CSP plants works with new TES materials at higher temperatures (> 565 °C) compared to that with the commercial nitrate salt mixtures. This paper reviews recent progress in research and development of the next generation CSP and TES technology. Emphasis is given on the advanced TES technology based on molten chloride salt mixtures such as MgCl₂/NaCl/KCl which has similar thermo-physical properties as the commercial nitrate salt mixtures, higher thermal stability (> 800 °C), and lower costs (< 0.35 USD∙kg⁻¹). Recent progress in the selection/optimization of chloride salts, determination of molten chloride salt properties, and corrosion control of construction materials (e.g., alloys) in molten chlorides is reviewed.

带有热能存储（TES）系统的集中式太阳能发电厂（CSP）正在崛起，成为未来可再生能源系统中最有前途的发电厂之一，因为它们可以为可调度且低成本的电力提供丰富而间歇的太阳能。为了显着降低当前商业CSP工厂的平均电费（LCOE），正在开发具有更高工艺温度和能源效率的下一代CSP技术。与商用硝酸盐混合物相比，下一代CSP工厂中的TES系统可在更高的温度（> 565°C）下使用新型TES材料。本文回顾了下一代CSP和TES技术在研究和开发方面的最新进展。₂ / NaCl / KCl具有与市售硝酸盐混合物相似的热物理性质，具有更高的热稳定性（> 800°C）和更低的成本（<0.35 USD∙kg ^-1）。综述了氯化物盐的选择/优化，熔融氯化物盐性质的确定以及熔融氯化物中建筑材料（例如合金）的腐蚀控制方面的最新进展。