Latent Heat Storage Composition

The present invention relates to a latent heat storage composition, and more particularly, the latent heat storage composition is composed of a mixture of a first phase change material and a second phase change material, and fumed silica. The first phase change material and the second phase change material each independently includes a fatty acid and esters thereof, and a weight ratio of the fumed silica is from 5 wt % to 15 wt %.