Apparatus for storing thermal energy, and particularly electrical energy, has energy storage element formed as hybrid energy storage element, which comprises substantially homogeneous mixture for energy storage and recovery of energy

摘要

The apparatus (1) has an energy storage element (2) arranged in a storage container (12), and an energy input unit (10), through which the energy transferable to raise its temperature is stored as thermal energy in the energy storage element. The energy storage element is formed as a hybrid energy storage element, which comprises a substantially homogeneous mixture (4) for energy storage and recovery of energy that supplies or withdraws the energy as heat energy from a solid element (6) and a fluidic element (8). The energy input unit comprises a heater (14) with a heating element (16).