Special Column on Recent Advances in PCMs as Thermal Energy Storage in Energy Systems

Thermal energy storage technology has the advantages of high energy storage density,small size,and high energy conversion eficiency.It is one of the key energy storage technologies and an important way to achieve carbon peaking and carbon neutrality goals.Phase change materials(PCMs)offer this opportunity to store high amount of energy and release it in the form of latent heat when needed,and therefore have the advantage of being capable to alleviate the intrinsic intermittency of renewable power production,especially in wind and solar farms.