Abstract: A high energy density cell or battery capable of undergoing flexular stress with little effect on its discharge properties either during and after subjection to stress.

Abstract: A high energy density hermetic ultraminiature cylindrical cell containing a combination electrolyte fill port and current collector as a hollow metal needle. The cell includes a lithium anode, an electrolyte of an alkali metal salt dissolved in an organic solvent, and a cathode of a chromate, vanadate, molydate, permanganate, iodate, oxide, or carbonmonofluoride.

Abstract: A method, a cell, an electrolyte and an additive for the non-dendritic deposition of lithium is described.The additive which causes the non-dendritic deposition of lithium from non-aqueous electrolytes and particularly organic electrolytes is a metal, reducible by lithium and capable of forming lithium-rich metallics or alloys.

Abstract: A battery cartridge having a hollow case of minimum thickness, weight and dimensions, with minimum excess over the minimum weight and volume dimensions of the contained battery cells; with simple arrangement for assembling battery terminals that are extendable to a space outside of the case to permit easy welding operation, and are then foldable back into the case to be completely covered and disposed within the case, when the case is closed and sealed to protect the battery cells. Open spaces in a wall of the cover of the case, provide windows for access to the terminals of the battery cells, for engagement by pressure contacts external of the case and connected to an external circuit to which the battery energy is to be supplied.

Abstract: A battery sealed against electrolyte leakage by surrounding a stack of cells with cylindrical layer of two ply construction with absorbing or blotting paper surrounded by an impervious plastic cylindrical layer, with hot melt plastic plugs at both ends of the cylinder to form a leakproof sealed container for the stack of cells.

Abstract: An anode coating for anhydrous electrochemical generating cells is disclosed wherein the anode active material is coated with the insoluble reaction product of the anode metal with an inhibiting reactant such as CO.sub.2, SO.sub.2, O.sub.2, NH.sub.3, and N.sub.2 saturated with respect to water vapor H.sub.2 O. This coating is insoluble in the cell under open circuit conditions and is stable with regard to said electrolyte but is soluble in said electrolyte, when the cell is discharged with a negligible over voltage. The coated anodes and the method for making same are specifically described. Cells with anodes treated according to this invention have been stored at 55.degree. C, for extended periods with negligible self discharge.

Abstract: An alkali metal anode compressed on a smooth metal current collector and adhered thereto by means of a metal which spontaneously alloys with the alkali metal at room temperature.

Abstract: An electrochemical cell comprising an active metal anode and an electrolyte solvent/cathode depolarizer which reduces anode passivation during long time storage, even at elevated temperatures, by the inclusion of a minor proportion of an electrolyte salt additive having a clovoborate anion structure.

Abstract: A self sealing microporous membrane of utility especially in electrochemical cells of the gas-depolarized type comprising a microporous polymer membrane of a density range between about 0.7 and 1.9 grams per centimeter embodies a pressurized sealing zone of maximum density and zero porosity. Such pressurized zone is located to provide a seal against leakage of electrolyte.

Abstract: A sealing means for an electrochemical cell containing electrolyte, the sealing means including a body of material capable of absorbing electrolyte and thereby helping to minimize electrolyte leakage from the cell.

Abstract: Ion exchange membranes adapted for use in organic solvents. The membranes include a substrate providing microporosity and a polyelectrolyte supported thereby and comprised of Na, K, or Li salts of linear polymers having attached functional groups. The disclosure pertains further to organic electric cells which employ the membranes as cell separators. Other features of the invention appear in the specification.

Abstract: A cathodic active material is described utilizing the periodates of heavy metals and preferably of silver. These materials are particularly suitable for use as positive electrodes in nonaqueous electrolyte cells and such electrodes and the cells are described. A method for fabrication of the active material into cathodes is included.

Abstract: Corrosion of the current collectors in cells utilizing vanadium oxides and chromates as cathode materials is prevented by the utilization of metals from Groups IVb, Vb, and VIb of the Periodic Table for fabricating the current collectors and leads in contact with the cathode materials. Ta, Ti, and Mo are preferred materials. Cells containing such structures are described as well as an intermediate protective structure.

Abstract: A high energy density electrochemical organic electrolyte solvent cell with highly oxidizing cathodes; the organic solvent being free of ethers and comprising a mixture of propylene and/or ethylene carbonate admixed with other specific carbonates and/or specific esters.

Abstract: The voltage level of an electrochemical cell having a divalent silver oxide (AgO) cathode is reduced to and maintained at the monovalent silver oxide (Ag.sub.2 O) level by an attenuated divalent silver oxide layer between the divalent silver oxide cathode and the cathode current collector.

Abstract: A battery including means housing a plurality of electrically interconnected electrochemical cells. Each electrochemical cell includes a container retaining an aqueous electrolyte, and anode and cathode electrodes. The aqueous electrolyte evolves hydrogen, under certain conditions, during electrical discharge and/or storage of the cell. The cathode electrode includes a reducible oxide of a metal. The battery housing includes an agent for converting hydrogen to water molecules and a second agent for retaining water molecules.

Abstract: Hermetic closure for electrochemical cells utilizing glass to metal seals in combination with electrolyte introduction means. A hollow tube anode current collector is sealed to a glass ring which is sealed to a metal outer ring.

Abstract: A method for encasing electrochemical cells in a porous structure of pellets adhered to one another enabling individual cell venting, and a battery utilizing the porous structure.

Abstract: An enclosure for an electrochemical device, especially useful for electrochemical cells having an internal pressure above ambient, wherein the enclosure is formed in accordance with techniques based upon aerosol container filling procedures.

Abstract: A fast chargeable and rechargeable energy storage system to serve as an electrical power supply, that can be fully charged or recharged in less than a minute, consisting of an electric cell with two polar electrodes, as to anode and cathode, with an electrolyte between them, in which the anode and the electrolyte are essentially non-gassing, and the operation during charge is a coupling of a chemical process with an electrochemical process. Circuit voltage is open 0.75 volt and energy storage capacity about 37.5 milliwatt hours in presently available units of small size.