Heat storage heat core, preparation method thereof, heat storage module and heat storage system

The invention provides a heat storage heat core and a preparation method thereof, a heat storage module and a heat storage system, belongs to the technical field of phase change materials, and overcomes the defects that in the prior art, a heat storage material sacrifices much latent heat and is unstable in structure. The heat storage heat core comprises a shell, a core phase change area and a miscible layer arranged between the shell and the core phase change area. The shell is made of a framework material, the core phase change area is made of a core material, and the phase change temperature of the framework material is higher than that of the core material; the miscible layer is a composite material comprising a framework material and a core material, and the content of the core material in the miscible layer is gradually increased in the direction from the shell to the core phase change region. 本发明提供了一种蓄热热芯及其制备方法、蓄热模组和蓄热系统，属于相变材料技术领域，克服现有技术中蓄热材料牺牲较多潜热，结构不稳定等缺陷。本发明蓄热热芯，包括外壳、核心相变区和设置在外壳与核心相变区之间的混溶层；所述外壳由骨架