Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Albrecht Rabenau

Werner Weppner

Ulrich Von Alpen

Klaus-Dieter Kreuer

Michael F Bell

Erich Schonherr

Joachim Marcoll

Ervin Hartmann

Jurgen Fenner

Gertraude Muller

The present invention provides a lithium ion conductor, consisting of an ition compound of a lithium halide with an alcohol, an amine or a basic organic heterocyclic nitrogen compound. The present invention also provides a process for the production of this lithium ion conductor, as well as a galvanic element containing it.

Lithium ion conductor

A galvanic cell is described, having a metal oxide or metal sulfide electe and a metal electrode, and between them an electrolyte or separator, which is characterized by the fact that it contains as electrolyte a solid proton conductor, namely a zeolite having a proton-containing cation, which has in its crystal lattice passages a phase promoting proton transport.

Galvanic cell comprising solid proton conductor as electrolyte

Solid proton conductors are described, which are based on zeolites having oton-containing cations and having six-member and larger rings as secondary structural groups of the zeolitic structure, and in whose crystal lattice passages a phase is present which promotes proton transport. Their use as separator material and electrolyte for electrochemical cells is also described.

Solid proton conductors and their use

Crystalline lithium nitride, stable in air, characterized by a sodium content of less than 5.times.10.sup.-2 weight-percent, a potassium content of less than 10.sup.-2 weight-percent, a magnesium content of less than 1.times.10.sup.-2 weight-percent, and a silicon and iron content of 10.sup.-2 to 10.sup.-3 weight-percent each; is obtained by heating lithium having a purity of at least 99.9% in a vessel made of tungsten, niobium, ruthenium or tantalum in a nitrogen atmosphere at a pressure of at least 250 mm Hg in the absence of oxygen and water at a temperature of from 300.degree. C. to the melting point of lithium nitride.

Stable crystalline lithium nitride and process for its preparation

Electrochemical cells utilize crystalline chalcogen halides as solid eleclytes. Processes for the manufacture of the chalcogen halides and of the solid electrolyte cells are disclosed.

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Stuttgart, Germany

Albrecht Rabenau