Abstract: The invention concerns a high temperature lithium-sulphur secondary battery. The cells of the battery are arranged in a stack, and each cell consists of a pellet of immobilized electrolyte sandwiched between a lithium containing negative electrode pellet and a metal sulphide positive electrode. Intercell metal sheets both maintain electrical contact and inhibit chemical reaction between the electrodes of adjacent cells, and the stack of cells is enclosed in a close-fitting tube of chemically inert and electrically insulating material.

Abstract: A planar primary battery particularly suited for photographic applications characterized in exhibiting high current drain capacity. The battery structure includes positive active components including two cathode strata, one cathode stratum being a slurry of a particulate cathode active material in aqueous electrolyte, the other cathode stratum comprising a particulate dispersion of dry cathode active particles in a binder matrix bonded to the surface of a polymeric current collector.

Abstract: A construction which minimizes damage to alkaline electrolyte batteries due to electrolyte leakage caused by extreme variations in temperature is disclosed. The batteries comprise a multiplicity of individually sealed cells, arranged in electrically connected stacks, each stack being disposed in a moisture-proof plastic container and/or cup filled with an encapsulating resin in the entire space within the cup, with the encapsulated assembly being housed in a metal outer container. The cells within each stack and each stack itself is thus isolated, thereby minimizing any damage that might result from inter-cell leakage, from interstack leakage, and from leakage that would corrosively affect associated equipment in an assembled apparatus, due to extreme temperature variations, especially under high humidity conditions.