Arnold, White & Durkee
Electrochemical cell
 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. 
Lilliwyte Societe Anonyme
H Y H C H
H01M Y02E H01M C04B H01M
inventional additional inventional inventional inventional
Ivor E. Roger J. James H.
Denton Bones Duncan