Patent ID: 11970652
Assignee: MICROERA POWER INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC C  F  Y | IPC C  F

Claim 0:
1. A thermal energy storage system comprising:
two or more volumes of a formulation of active material, each formulation of active material in each of the two or more volumes:
including a solvent and one or more of a salt, a base, or an acid as the active material; and
having multiple congruent solid phase transition temperatures at different concentrations of the solvent, wherein the formulation at each congruent solid phase transition temperature has the same solvent concentration when in the liquid phase and solid phase;
wherein a solid phase transition temperature of each volume of the two or more volumes of the formulation of active material is adjustable by changing the concentration of solvent in each formulation from a first concentration with a first congruent solid phase transition temperature to a second concentration with a second congruent solid phase transition temperature and the system is configured to change a concentration of solvent in at least one of the two or more volumes of the formulation of active material by evaporation and condensation of the solvent within the at least one of the two or more volumes of the formulation.