Abstract: A solid-state cell, a solid-state battery, and an associated method for producing a solid-state cell is disclosed. A solid-state cell has an electrolyte comprising NaSICON. The solid-state cell comprises a first electrode arranged at a first region of the electrolyte and a second electrode arranged at a second region of the electrolyte. A continuous material layer is arranged at least a third region of the electrolyte on an outer surface of the electrolyte. Alternatively, a chemical composition of the outer surface in the third region of the electrolyte is changed. In this way, the formation of filaments and/or dendrites can be effectively prevented and operation at significantly increased current densities is possible.

Abstract: An electrochemical element or cell and a cathode for same which contains an anode, a separator, and a cathode composed of manganese dioxide; this cathode incorporates an inorganic crystalline additive of tungsten oxide, compounds of zirconium, titanium oxide with rutile structure, yttrium oxide, cerium oxide, zeolites and aluminosilicates, and at least one of these is present in a proportion or range between one ten thousandth (0.0001) and ten (10) percent by weight of the cathode mass.

Abstract: An electrochemical element or cell and a cathode for same which contains an anode, a separator, and a cathode composed of manganese dioxide; this cathode incorporates an inorganic crystalline additive of tungsten oxide, compounds of zirconium, titanium oxide with rutile structure, yttrium oxide, cerium oxide, zeolites and aluminosilicates, and at least one of these is present in a proportion or range between one ten thousandth (0.0001) and ten (10) percent by weight of the cathode mass.