▎ 摘　　要

NOVELTY - Carbon-based phase-change energy storage material, comprises heat conducting enhanced phase-change material particles and a carbon-based thermal conversion reinforcing agent coated on the surfaces of the heat conducting enhanced phase-change material particles, where the mass ratio of the heat conducting enhanced phase-change material particles to the carbon-based thermal conversion reinforcing agent is 75-95: 5-25. The heat conducting enhanced phase change material particles comprises organic phase change material matrix and carbon-based high-thermal-conductivity porous material in a ratio of 70-90:10-30. USE - The material is useful for direct photothermal conversion of solar energy. ADVANTAGE - The material: has excellent heat conducting performance, photothermal conversion capability and liquid leakage prevention capability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the carbon-based phase-change energy storage material, comprising (i) immersing the carbon-based high-thermal-conductivity porous material in a completely melted organic phase change material matrix and performing vacuum infiltration, (ii) crushing the resultant material to obtain heat conducting enhanced phase change material particles, (iii) adding the heat conducting enhanced phase change material particles and carbon-based photothermal conversion reinforcing agent into an alcohol solvent at the same time and then carrying out physical dispersion, and (iv) carrying out vacuum infiltration again on the solution obtained in the resultant step and completely volatilizing the alcohol solvent after the infiltration is finished to obtain the final product.