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Title: Thermal regeneration of an electrochemical concentration cell

Abstract

A system and method 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.

Inventors:
 [1];  [2]
  1. (Naperville, IL)
  2. (Plainfield, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
864013
Patent Number(s):
4292378
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermal; regeneration; electrochemical; concentration; cell; method; thermally; regenerating; aluminum; electrodes; respectively; positioned; contact; electrolytes; separated; exchange; composed; concentrations; ionic; solvent; salt; preferably; halide; organic; inorganic; relatively; melting; form; complex; free; energy; formation; -5; kcal; mole; distillation; column; solar; heat; grade; industrial; waste; receives; decomposes; salt-solvent; provide; feed; material; half; cells; solar heat; distillation column; free energy; industrial waste; waste heat; feed material; chemical concentration; thermally decompose; concentration cell; electrolytes separated; salt form; aluminum electrode; solvent complex; electrochemical concentration; /429/

Citation Formats

Krumpelt, Michael, and Bates, John K. Thermal regeneration of an electrochemical concentration cell. United States: N. p., 1981. Web.
Krumpelt, Michael, & Bates, John K. Thermal regeneration of an electrochemical concentration cell. United States.
Krumpelt, Michael, and Bates, John K. Thu . "Thermal regeneration of an electrochemical concentration cell". United States. https://www.osti.gov/servlets/purl/864013.
@article{osti_864013,
title = {Thermal regeneration of an electrochemical concentration cell},
author = {Krumpelt, Michael and Bates, John K.},
abstractNote = {A system and method 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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