Enhancing the Reaction Kinetics of K₂CO₃ for Low-Temperature Thermochemical Energy Storage

This chapter delves into the enhancement of K2CO3 reaction kinetics for low-temperature thermochemical energy storage, addressing critical challenges such as slow hydration rates and particle agglomeration. The study explores the development of a particle-based K2CO3–EG composite material, which significantly improves thermal conductivity and hydration kinetics. Key findings include a 14.9 times increase in the effective reaction rate constant for the EG-supported material and a notable decrease in dehydration onset temperature. The research also highlights the impact of LiCl addition on sorption capacity and reaction kinetics. Through detailed experimental analysis, the chapter provides insights into the potential of composite materials to overcome the limitations of traditional thermochemical storage systems, offering a promising path forward for efficient energy storage solutions.