▎ 摘　　要

NOVELTY - Thermal energy storage cell comprises a concrete vessel, an eutectic composition, being contained in the concrete vessel and having a phase change range around 500-1200° C, and a heating element, being charged to heat the eutectic composition, where the heating element is disposed in a cassette box that sits inside the eutectic composition, and the cell further comprises a heat absorbed located above the eutectic such that radiation from the specific heat of the eutectic is absorbed and transferred to an engine or turbine, where the density and specific heat of the eutectic composition is the highest of any eutectic without substantial expansion and breakages. USE - As thermal energy storage cell. ADVANTAGE - The storage cell solve the heat transfer problem such as heat loss and heat transfer to the extraction medium efficiently and inexpensively. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic three-dimensional view of the closed thermal energy storage cell. 10Thermal energy storage cell 14Concrete vessel