Thermal Battery

A Thermal Energy battery is physical structure used for the purpose of storing and releasing thermal energy—see also Thermal energy storage. Such a Thermal Battery (a.k.a. TBat) allows energy available at one time to be temporarily stored and then released at another time. The basic principles involved in a thermal battery occur at the atomic level of matter, with energy being added to or taken from either a solid mass or a liquid volume which causes the substance's temperature to change. Some Thermal Batteries also involve causing a substance to transition thermally through a Phase transition which causes even more energy to be stored and released due to the delta Enthalpy of fusion or delta Enthalpy of vaporization.