초록 ▼

Ceramic materials which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200°-550°C. or organic salt (including SO2 and SO2Cl2) at temperatures of 25°-200°C. These sulfide ceramics form stoic

Ceramic materials which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200°-550°C. or organic salt (including SO2 and SO2Cl2) at temperatures of 25°-200°C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components.

대표청구항 ▼

A corrosion-resistant batten having alkali-metal conductivity, comprising: a conductive member selected from the group consisting of a metallic material, a ceramic material, and combinations thereof; a negative electrode selected from the group consisting of alkali metals, alkaline earth metals, and

A corrosion-resistant batten having alkali-metal conductivity, comprising: a conductive member selected from the group consisting of a metallic material, a ceramic material, and combinations thereof; a negative electrode selected from the group consisting of alkali metals, alkaline earth metals, and alloys thereof, said electrode in a substantially conductive relationship to said member; a single phase sulfide-containing ceramic separator having at least three chemical elements and selected from the group consisting of a sulfide and a sulfide/selenide composite, and including an alkali metal ion conductive material selected from the group consisting of an oxide, nitride, carbide, and sulfide, said separator in a substantially conductive relationship to said negative electrode; and a positive electrode selected from the group consisting of metal oxides, sulfides, nitrides, and carbides intercalated with alkali metal ions, said electrode including a non-intercalated material selected from the group consisting of metal oxide, sulfide, nitride, and carbide ceramics, in a substantially conductive relationship to said separator.