“…In particular, phase change material (PCM), a kind of low price and stable performance material, has a higher thermal energy density per unit volume/ mass than other heat storage materials, and is suitable for various engineering applications across a wide temperature range. It is widely used not only in the field of solar thermal storage [2], but also in a photovoltaic-thermal system [3], building windows [4], building walls [5], air conditioners [6], unmanned underwater vehicles [7], and thermal management [8,9].…”