Thermal energy storage based on sorption is an emerging technology used in space heating and cooling applications. Salt hydrates exhibit high energy density and emerge as promising candidates for long-term energy storage. However, their lack of stability due to agglomeration and deliquescence are the main issues for their long-term use and sustainability. To overcome this, composites based on salt hydrates are being investigated by researchers lately. The current paper focuses on magnesium sulphate salt hydrate-based hybrids for thermal energy storage, and covers the major concerns pertaining to stability and cycling performance of the hybrids. The structural characterization of the hybrids is performed by SEM (Scanning Electron Microscopy). The hydration/dehydration characteristics are measured by a lab scale thermal energy storage apparatus. The best hybrid shows excellent stability, and relatively high energy storage density (139 kWh/m³) when sorption is performed at room temperature at 50% inlet relative humidity, after a dehydration temperature of 120 °C.

基于吸附的热能存储是一种用于空间加热和冷却应用的新兴技术。水合物具有高能量密度，并有望成为长期储能的候选者。然而，它们由于结块和潮解而缺乏稳定性是其长期使用和可持续性的主要问题。为了克服这个问题，研究人员最近正在研究基于水合物的复合材料。目前的论文重点研究了基于硫酸镁盐水合物的热能存储杂化物，并涵盖了与杂化物的稳定性和循环性能有关的主要问题。杂化物的结构表征通过SEM（扫描电子显微镜）进行。水合/脱水特性通过实验室规模的热能储存装置测量。³ ) 当在 120 °C 的脱水温度后，在 50% 入口相对湿度的室温下进行吸附时。