Thermal regeneration of an electrochemical concentration cell
A system and method are described for thermally regenerating an electrochemical concentration cell having first and second aluminum electrodes respectively positioned in contact with first and second electrolytes separated by an ion exchange member, the first and second electrolytes being composed of different concentrations of an ionic solvent and a salt, preferably an aluminum halide. The ionic solvent may be either organic or inorganic with a relatively low melting point, the ionic solvent and the salt form a complex wherein the free energy of formation of said complex is less than about -5 kcal/mole. A distillation column using solar heat or low grade industrial waste heat receives the first and second electrolytes and thermally decomposes the salt-solvent complex to provide feed material for the two half cells.
- DOE Contract Number:
- W-31-109-ENG-38
- Assignee:
- Dept. of Energy
- Application Number:
- ON: DE82016650
- OSTI ID:
- 5329037
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
REGENERATIVE FUEL CELLS
DESIGN
ALUMINIUM
ELECTRODES
ELECTROLYTES
HEAT SOURCES
HYDROGEN
ION EXCHANGE MATERIALS
LITHIUM
LITHIUM HYDRIDES
MEMBRANES
MERCURY
PYROLYSIS
SODIUM
SOLAR ENERGY CONVERSION
WASTE HEAT
WASTE HEAT UTILIZATION
ALKALI METAL COMPOUNDS
ALKALI METALS
CHEMICAL REACTIONS
CONVERSION
DECOMPOSITION
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELEMENTS
ENERGY
ENERGY CONVERSION
FUEL CELLS
HEAT
HYDRIDES
HYDROGEN COMPOUNDS
LITHIUM COMPOUNDS
MATERIALS
METALS
NONMETALS
THERMOCHEMICAL PROCESSES
WASTE PRODUCT UTILIZATION
WASTES
300501* - Fuel Cells- Design & Development
140500 - Solar Energy Conversion
320304 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization