Abstract: In a process for producing a positive nickel hydroxide electrode for a nickel-metal hydride or nickel-cadmium storage battery a positive nickel hydroxide electrode produced in an earlier stage in the process is after-treated by introducing a saline solution into the active mass contained in an electrode carrier structure of the electrode in order to obtain a positive nickel hydroxide electrode with an improved current yield.

Abstract: A nickel-metal hydride accumulator for industrial applications has positive nickel hydroxide electrodes and, separated therefrom, negative metal hydride electrodes as well as an alkaline electrolyte surrounding the electrodes. An improved nickel-metal hydride accumulator that is in particular insensitive to influences of temperature has a thermal arrangement which increases the specific thermal capacity of the accumulator and is formed by an additional electrolyte volume, wherein the accumulator comprises a plastics material housing which receives the electrodes and the electrolyte and is provided with a pressure relief valve.

Abstract: The present invention relates to an accumulator arrangement with accumulators that can be operated in parallel, and also to a method for operating the accumulator arrangement according to the invention. The present invention is based on the problem of improving the exploitation of the capacity of an accumulator and of accumulator arrangements. As a solution the present invention proposes that the accumulator arrangement is configured in such a way that at least one lead-acid accumulator with a large internal resistance and at least one accumulator with a basic electrolyte respectively a sealed lead accumulator with a small internal resistance are operable in parallel.

Abstract: The invention relates to a nickel-cadmium battery having pocket-type plate negatives. In order to vary the properties of nickel-cadmium batteries having pocket-type plate negatives such that the unfavourable long-term behaviour is avoided and better endurance data can be achieved, the invention proposes to use fibre pattern electrodes as positive electrodes.

Abstract: An electrode and a method of manufacturing an electrode with a capacity to store hydrogen, has a metallic substrate material to which an active compound is applied. The active compound is obtainable from a paste which comprises a dry fraction and a liquid fraction. The dry fraction comprises a mixture of a pulverulent storage alloy for hydrogen, soot and polytetrafluoroethylene (PTFE), the particles of the storage alloy being covered with PTFE in the manner of fibrils; and the liquid fraction comprising a mixture of water and a higher alcohol which has from 3 to 6 C atoms.

Abstract: The invention relates to a battery of bipolar stack design, having a plurality of subcells. The battery, the subcells of which comprise in each case two electrodes of different polarity and an electrolyte-impregnated separator, are electronically connected via an electrically conductive connecting wall between them. All the subcells are connected to a common gas space. The connecting walls between the subcells produce the electrical contact and, at the same time, exclude any electrolytic connection. The electrolyte is fixed in a limited quantity in the electrodes and the separator. The subcells are pressed together by a continuously acting force. The current is discharged on the outer walls of the casing, which are designed as pressure plates.

Abstract: To improve upon an accumulator (1) in a bipolar stack configuration comprising a number of sub-cells (9) arranged in layers within a housing (2) and separated by conductive partitions (8), wherein each sub-cell (9) has a positive (10) and a negative (11) electrode and a separator (12) between the electrodes (10, 11), as well as electrolytes in contact with the electrodes, such that the stack comprised of the sub-cells (9) can be fastened easily and safely via mechanical means, it is suggested that the stack, comprised of several sub-cells layered on top of one another be held in place via a force that will keep the individual elements (8, 10, 11, 12) of the stack in contact with one another with only a mechanical tie rod (14).

Abstract: In order to be able to produce prismatic, unsealed nickel-cadmium batteries without limiting the amount of electrolyte, the invention proposes the manufacture of an electrode system for nicad batteries under at least partial utilization of fibe- structure electrodes, for which purpose positive and negative lamellar electrodes are produced and, with separator material interlayered, stacked in alternating fashion in a defined number to form an electrode assembly. The respective equidirectional electrodes are mutually connected by means of connecting straps; the electrode assembly is pressed and positionally locked between mechanical clamping elements into a unitized, coplanar, undeformable block, under simultaneous compression of the separator material interlayered between the electrodes.

Abstract: In order to be able to produce prismatic, unsealed nickel-cadmium batteries without limiting the amount of electrolyte, employing fiber-structure electrodes which, while retaining the above-described advantages over conventional nicad batteries in terms of the charging voltages, are compatible with these conventional products by not requiring higher charging voltages yet involve less maintenance in connection with water consumption, the invention proposes the manufacture of an electrode system for nicad batteries under at least partial utilization of fiber-structure electrodes, for which purpose positive and negative lamellar electrodes are produced and, with separator material interlayered, stacked in alternating fashion in a defined number to form an electrode assembly, with the respective equidirectional electrodes mutually connected by means of connecting straps; the said electrode assembly is pressed and positionally locked between mechanical clamping elements into a unitized, coplanar, undeformable bloc