Abstract: The present disclosure relates to a phase change composite and a heat spreader including the same, and more particularly, to a phase change composite having improved cooling performance by being formed in a layer-by-layer structure composed of a material having high thermal conductivity and a phase change material. According to the present disclosure, by repeatedly laminating thermal conductive layers and phase change material unit layers, thermal conductivity in the horizontal direction may be dramatically improved. In addition, due to a high volume percentage of a phase change material, a heat spreader with a large heat capacity may be provided.

Abstract: The present disclosure relates to a novel high-performance latent heat storage composite manufactured by forming a network of protective nanostructures on the surface of a metal material having high thermal conductivity. Through a low volume content of a network having high thermal conductivity, high-density heat capacity may be secured. In addition, through use of a metal-based material having high thermal conductivity, thermal conductivity may be increased by about 7 times compared to a conventional pure phase change material.