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Title: Treatment of electrochemical cell components with lithium tetrachloroaluminate (LiAlCl/sub 4/) to promote electrolyte wetting

Abstract

Electrochemical cell components such as interelectrode separators, retaining screens, and current collectors are contacted with lithium tetrachloroaluminate prior to contact with molten electrolytic salt to improve electrolyte wetting. The LiAlCl/sub 4/ can be applied in powdered, molten, or solution form; but, since this material has a lower melting point than the electrolytic salt used in high-temperature cells, the powdered LiAlCl/sub 4/ forms a molten flux prior to contact by the molten electrolyte when both materials are initially provided in solid form. Components of materials such as boron nitride and other materials that are difficult to wet with molten salts are advantageously treated by this process.

Inventors:
;
Publication Date:
OSTI Identifier:
5351064
Patent Number(s):
US 4189827
Assignee:
Dept. of Energy
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 3 Nov 1978; Other Information: PAT-APPL-957,619
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; LITHIUM-SULFUR BATTERIES; ELECTROLYTES; WETTING AGENTS; ALKALI METALS; ALUMINIUM CHLORIDES; BATTERY SEPARATORS; HIGH TEMPERATURE; LITHIUM CHLORIDES; SULFIDES; TRANSITION ELEMENT COMPOUNDS; ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; ELECTRIC BATTERIES; ELECTROCHEMICAL CELLS; ELEMENTS; ENERGY STORAGE SYSTEMS; HALIDES; HALOGEN COMPOUNDS; LITHIUM COMPOUNDS; LITHIUM HALIDES; METAL-NONMETAL BATTERIES; METALS; SULFUR COMPOUNDS; SURFACTANTS; 250903* - Energy Storage- Batteries- Materials, Components, & Auxiliaries

Citation Formats

Eberhart, J G, and Battles, J E. Treatment of electrochemical cell components with lithium tetrachloroaluminate (LiAlCl/sub 4/) to promote electrolyte wetting. United States: N. p., 1980. Web.
Eberhart, J G, & Battles, J E. Treatment of electrochemical cell components with lithium tetrachloroaluminate (LiAlCl/sub 4/) to promote electrolyte wetting. United States.
Eberhart, J G, and Battles, J E. Tue . "Treatment of electrochemical cell components with lithium tetrachloroaluminate (LiAlCl/sub 4/) to promote electrolyte wetting". United States.
@article{osti_5351064,
title = {Treatment of electrochemical cell components with lithium tetrachloroaluminate (LiAlCl/sub 4/) to promote electrolyte wetting},
author = {Eberhart, J G and Battles, J E},
abstractNote = {Electrochemical cell components such as interelectrode separators, retaining screens, and current collectors are contacted with lithium tetrachloroaluminate prior to contact with molten electrolytic salt to improve electrolyte wetting. The LiAlCl/sub 4/ can be applied in powdered, molten, or solution form; but, since this material has a lower melting point than the electrolytic salt used in high-temperature cells, the powdered LiAlCl/sub 4/ forms a molten flux prior to contact by the molten electrolyte when both materials are initially provided in solid form. Components of materials such as boron nitride and other materials that are difficult to wet with molten salts are advantageously treated by this process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {2}
}