Electrochemical cell

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method

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429104, H01M 1039

Patent

active

050513249

ABSTRACT:
The invention provides a method of making a flattened solid electrolyte, e.g. .beta.-alumina, envelope for use as an electrode holder in an electrochemical cell. A mouldable mixture of the .beta.-alumina with a binder is formed into sheet material and two panels of the sheet material are joined together along their peripheral edges to form the envelope. Spacing and reinforcing means is provided between the panels to space them apart and to reinforce the envelope. The edges of the panels are joined together using pressure, heat and/or solvent, after which are envelope is heated to cure the binder, volatilize the cured binder and sinter the solid electrolyte.

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patent: 4568502 (1986-02-01), Theodore et al.
patent: 4772875 (1988-02-01), Wright
"Plate-Type Beta" Alumina Electrolytes for an Advanced Sodium-Sulfur Cell Design, Pett et al., American Ceramic Society Bulletin, 64[4]:589-592 (1985).
"The Function and Performance of Beta Alumina in Sodium Sulfur Cells," Automotive Engineering Congress and Exposition, Detroit, Michigan, Feb. 24-28, 1975.
"Low Cost Fabrication of Thin-Walled Solid Electrolyte Tubes from Doctor-Bladed Ceramic Tape," Report prepared for U.S. Department of Energy, Contract No. EM-78-C-01-5161, Dirstine et al.

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