The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1981
Filed:
Jun. 16, 1980
Wolfgang Kappus, Viernheim, DE;
Waldemar Borger, Kelkheim, DE;
Varta Batterie Aktiengesellschaft, Hanover, DE;
Abstract
In a high-temperature cell using, for example, the system Li(Al)/LiCl, KCl/MeS (wherein Me is a heavy metal) the operating temperatures and the composition of the molten electrolyte are so selected that a solid phase is created through partial precipitation of at least one of the components of the salt mixture, which provides the separator function between the electrode plates. For example, a non-eutectically composed molten electrolyte of 80% by volume LiCl and 20% by volume KCl, at a given temperature corresponding to the operating point in the phase diagram, contains a solid LiCl frame whose pore volume of about 50% is filled with ion-conducting residual molten LiCl and KCl. Through combination with non-electron conducting inert material in grid or powder form, the permeability of the precipitated solid separator can be further controlled.