Abstract: Described herein is a contact arrangement for a battery cell of a galvanic battery. The battery cell comprises a positive mass layer (6, 106) and a negative electrode layer (11, 111). A separator layer (5, 105) separates the positive mass layer (6, 106) and the negative electrode layer (11, 111) from each other. A positive current collector (7, 107) is connected to the positive mass layer (6, 106). A case (1, 2, 101, 102) made of an insulating material hermetically encloses the active components of the battery cell. Contact units (12, 14, 16, 22, 23, 24, 116) create electrical contact through the case (1, 2, 101, 102) with the positive current collector (7, 107) and with the negative electrode layer (11, 111), respectively. An additional insulation layer (9, 13, 113) made of a tough and adhesive material and bounded by the case (1, 2, 101, 102) is provided so as to maintain the hermetic nature of the case despite the passing-through of a contact unit (12, 14, 16, 22, 23, 24, 116).

Abstract: This invention relates to a cell construction for alkaline batteries, to alkaline batteries utilizing such cells and to methods for the manufacture thereof. Each cell has a positive electrode, a negative electrode in the form of a paste contained within a sealed bag, and a dielectric positioned at least between the electrodes. The electrodes and dielectric are sealed within a flexible package and a pointed conductor is provided which is electrically connected to the positive electrode of the cell, extends therefrom, and is adapted to pierce the package and negative electrode bag of an adjacent cell to make electrical contact with the negative electrode paste of such cell when the cells are pressed together to form a battery. The invention provides improved sealing between the cells by inhibiting the denting of the packaging and negative electrode bag prior to piercing by use of a stiff supporting plate mounted to the negative electrode side of the cell.

Abstract: This invention relates to a cell construction for alkaline batteries, to alkaline batteries utilizing such cells and to methods for the manufacture thereof. Each cell has a positive electrode, a negative electrode in the form of a paste contained within a sealed bag, and a dielectric positioned at least between the electrodes. The electrodes and dielectric are sealed within a flexible package and a pointed conductor is provided which is electrically connected to the positive electrode of the cell, extends therefrom, and is adapted to pierce the package and negative electrode bag of an adjacent cell to make electrical contact with the negative electrode paste of such cell when the cells are pressed together to form a battery. The invention provides improved sealing between the cells by inhibiting the denting of the packaging and negative electrode bag prior to piercing by use of a stiff supporting plate mounted to the negative electrode side of the cell.

Abstract: A rechargeable, electrochemical generation apparatus and method has bipolar nickel-zinc electrode cells in a stacked, serially connected configuration for providing improved reliability and charge-discharge cycling capability. The apparatus employs a rotatable container having mounted therein a plurality of the electrode cell assemblies. An electrolyte solution is circulated, preferably according to a pulsed circulation, through the electrolyte cells. The electrode cells have an anode and a cathode electrode element, and each element has a substantially planar surface in contact with the electrolyte solution. The cells are mounted so that the planar surfaces of the electrodes align with the radial direction of the centrifugal force created by rotation of the container. The container, and hence the cells, are rotated to create centrifugal forces on the order of one hundred times the pull of gravity at the outer rims of the cells.

Abstract: An electrochemical generator which utilizes the centrifugal force produced by rotating the electrodes (14, 19, 75, 76) of the generator and preferably the electrolyte to perform a variety of functions within the generator including circulation of the electrolyte past the electrodes, circulation of air past the gas electrode (14, 75) where the generator is a metal-gas generator, controlling dendrite growth and providing relatively dense uniform deposition of metal during recharge for a rechargeable metal-air generator, keeping electrolyte and reaction products away from the pores of a gas electrode to prevent flooding or clogging of the pores, separating reaction products from the electrolyte, maintaining uniform spacing between the electrodes as the metal electrode of a gas metal generator is consumed, flushing and draining electrolyte for standstill periods, maintaining good electrical contact between electrodes and their current collectors while still permitting easy replacement of consumed electrodes and a

Abstract: The invention relates to a battery and contact combination comprising a battery with at least one cell, a plastic casing enclosing said battery, and current collector means. At least one of the terminals of the battery is arranged inside the casing adjacent to its inner surface, and the current collector means comprise at least one such contact element which is arranged to penetrate said casing and to make contact with said terminal. The contact element is kept in place by a resilient clamping means.

Abstract: An alkaline/manganese dioxide cell which is repeatedly rechargeable from a deeply discharged state is produced chemically contacting the manganese dioxide with free negative ions of at least one weak acid that does not, in the conditions prevailing in the cell, form salts with manganese the crystals of which contain water of crystallization. Suitable weak acids are silicic, carbonic, boric, cyanic and acetic acids and hydrogen sulphide.