A Large-Scale Manufacturing Method to Produce Form Stable Composite Phase Change Materials (PCMs) for Thermal Energy Storage at Low and High Temperatures

Abstract

High performance Phase Change Materials (PCMs) play a vital role in Thermal Energy Storage (TES) technologies. A cost-effective and easy-controllable fabrication process by mix-sintering method is an effective approach to produce composite PCMs at a large scale. In this work, a series of form stable composite PCMs with different phase change temperatures were prepared by mix-sintering method. These composite PCMs could be applied in a cascading manner in thermal storage system. DSC measurements and analyses show that the cascading system has an energy storage density of 1068.96 J/g within a working temperature range from 50 °C to 550 °C. Besides, an SEM study shows homogenous microstructure of the prepared composite PCMs.