“…Thermal energy storage (TES) can solve the mismatch between the energy supply and demand of renewable energy. 1,2 Based on the temperature requirements of different applications, the TES systems can be divided into low-temperature TES (lower than 80 C), medium-temperature TES (80-250 C), and high-temperature TES (higher than 250 C). 3 High-temperature TES is suitable for many industrial applications such as concentrated solar power (CSP) plants, supercritical CO 2 Brayton cycle, and waste heat recovery.…”