Abstract: The weight of the negative active mass is below 80% of the positive active mass.Preferably there is one more positive than negative plates.

Abstract: The electrochemically reducible component of the positive electrode mass is silver carbonate. The cell which includes this electrode and also a light-metal negative electrode. The battery made of such cells.

Abstract: A depolarizer mass for galvanic cells includes, in addition to the conventional ingredients, a hydrophobic agent. This agent is introduced by addition to the electrolyte, or by impregnation of the solid ingredients.

Abstract: A wrapped battery electrode is connected to the current take-off conductor by projections from radial slots in the conductor which engage the rim of the electrode.The projections are formed in the course of the punching operation which forms the slots.

Abstract: Multi-cell battery cooling is accomplished by cooling elements immersed in the cell-top electrolyte. The elements have high heat conductivity and electric resistance. The cooling medium has low electric resistance. Various configurations of circulatory flow paths provide various utilizations for the medium beyond that of cooling the cells.

Abstract: Silver-II-oxide for use in galvanic elements is produced by adding an oxidant to a metallic silver powder suspension in an alkaline solution.An exceptionally stable material results.

Abstract: Alkaline storage battery cells having negative electrodes with higher capacity than the positive electrodes. The positive electrodes have discharge limiting capacity. The negative electrodes have additive of Raney metal, or Raney metal alloy. Such cells constituting a battery.

Abstract: The plates of lead storage battery cells are supported at least from the top by resilient means attached to the cell cover. They may also be supported by resilient means from the cell bottom. The respective resilient means are placed diagonally relative to each other. At least the bottom support means has variable resiliency depending on the external forces applied to the cell.

Abstract: Method for the manufacture of a negative cadmium electrode containing a discharge reserve for gas-tight alkaline storage batteries by incorporating an organic cadmium compound into the electrode structure and roasting to thermally dissociate the organic compound to produce the discharge reserve. Additional features are incorporation of an organic nickel compound which also decomposes to form nickel and adding a control gas to aid in control of content of discharge reserve.

Abstract: Lead alloy for the grids of lead storage batteries, which comprises from 1.0 to 3.5 % antimony, 0.025 to 0.2 % arsenic, 0.005 to 0.1 % selenium, 0.05 to 0.5 % tin, and the remainder lead.Preferably the alloy also contains 0.025 to 0.1 % silver.

Abstract: An assembly of fuel cells, enclosed in a container, is immersed in a tank holding the electrolyte. Operating gas is used to produce electrolyte circulation through the cells.

Abstract: Separate cooling systems are provided for the heat of recombination and for the heat of condensation, respectively, of a hydrogen recombination reactor, such as used for lead storage batteries.

Abstract: An electrode grid is formed of extruded spines onto whose ends a yoke is cast. The spines may be of lead or lead alloy, with a core of a more highly conductive material.

Abstract: In a galvanic cell, there is provided a solid fluoride ion-conductive electrolyte which is a compound having the formula M.sub.n Pb.sub.1.sub.-n F.sub.2.sub.-n wherein M is at least one element selected from the group consisting of potassium and rubidium; Pb is usually all lead but part of the lead may be replaced by metal more electropositive than lead; F is fluorine; and n is a positive value.

Abstract: A gas-tight, liquid-tight cylindrical galvanic cell is provided with a cover integral with the cylindrical housing and having a central opening surrounded by a collar of smaller diameter than the housing and extending away from the housing. An electrically insulating ring is force fit onto the collar and an electrically conducting contact cap is force fit onto the ring. The collar is outwardly flared so that a predetermined internal pressure of the cell is required to force the cap off the ring, thereby relieving the pressure. A flexible, electrically conducting arrester element mechanically and electrically interconnects the cap and the interior of the cell. The cover having a collar is formed by rolling over the rim of a cylindrical cup-shaped container to form a cover and continuing the rolling of the rim onto a mandrel to form the collar.

Abstract: A rechargeable mercury/mercury oxide electrode having a high capacity, especially for primary cells and accumulators, which has a metal matrix with a non-pyrophoric amalgam. The electrode is capable of repeated charging and discharging cycles during which the mercury is present as mercury oxide and mercury, respectively. The electrode is capable of a flat and constant discharge curve, with an electrical current discharge approaching the theoretical capacity of the electrode.

Abstract: Pasted storage battery plates are dried by subjecting them to an alternating magnetic field which induces heating of the plate grids, thereby drying the paste from the inside.

Abstract: A corrosion inhibitor for primary cells of saturated or unsaturated monocarboxylic acid containing at least two ethanolamide radicals.

Abstract: The vertical rods of the battery plate grid are formed partly of whole rods and partly of half rods. The steps at which transitions from whole to half rods take place are positioned to optimize current flow patterns.

Abstract: The present invention relates to a method for the development of a protective oxide on the surface of porous, positive Mi-electrodes for galvanic cells with alkaline electrolyte.