Abstract: To improve on a vent plug system for a cell opening of a storage battery containing a plug element with an inner cartridge and a valve element, to where it is possible without the need for maintaining excessive physical tolerances to assemble it with a minimal number of components m simple fashion while still assuring reliable operation without any major effort, the plug element is provided as a cup-shaped unit with an outer contour shaped to fit into, and seal, the cell opening, with an internal cavity and with a gas port between the cavity and an outside surface. The inner cartridge is essentially cylindrical, has an outer contour shaped to permit insertion in the cavity of the plug element and is provided with a gas passage that opens into the cavity, while the valve element is a separate element retainable in the cavity by the inner cartridge and, as a function of the gas pressure, establishes a gas-flow connection between the gas passage of the inner cartridge and the gas port of the plug element.

Abstract: The invention concerns a plug arrangement for gas-tight closure of a cell vent of a storage battery. To provide a plug arrangement that to the greatest possible extent prevents acid from running out when a storage battery is tipped or turned and at the same time permits sufficient degassing and can also be produced economically, is easy to install and can be adjusted to different battery designs, this invention purposes a plug arrangement for gas-tight closure of a cell vent of a storage battery including a plug that can be used for a seal in the cell vent, an inside of the cell is connected by fluid mechanics to a hollow space made between upper and lower covers of a housing cover for acid deposition through a plug vent in a generating surface of the plug that has a two-way sealed membrane.

Abstract: This invention relates to a multi-cell storage battery including a housing and, enclosing the housing in gas-tight fashion, a housing cover assembly having an upper cover panel and a lower cover panel with a degassing duct between the upper and lower cover panels which encompasses a multiple array of interconnected, mutually matched labyrinth chambers, fluidically links all cells, opens out at a forward end into at least one gas vent, and is closed off by a spark suppressor.

Abstract: A method for reducing ion concentrations in separator materials used in electrochemical processes, including in lead storage batteries. The separator material is treated with at least one acid from the group of sulphuric acid, phosphoric acid and sulfonic acids and/or at least one salt from the group of sulfates, phosphates and diphosphates of the alkali metals of alkaline earth metals.

Abstract: The invention relates to a method of treating elastic material that is provided with silica embedments to avoid shrinkage, whereby the finished material that is provided with the silica embedments is subjected for a prescribed period of time to temperatures above 40° C. prior to further processing.

Abstract: For an improved recombination system serving to catalytically recombine hydrogen and oxygen, which form in a storage battery, into water and incorporating an adapter union assembly for the gas-tight connection of the system to a storage battery, a container which is gas-impermeable to the outside and which houses a recombination assembly, as well as a conduit for the loss-less gas intake from the adapter union to the container and water return flow in the opposite direction, whereby even in the event of an overload the hazard of escaping gas can be avoided and the efficacy of the catalytic unit can be maintained while at the same time the system can be produced at low cost and in a way as to be easily assembled and maintenance-free, this invention proposes to provide next to the conduit an expansion section which is open toward the outside but delimited by an ignition suppressor, and to connect the conduit with the expansion section by way of a gating aperture.

Abstract: A method and apparatus for producing lead storage batteries are provided. sentially grid-shaped lead electrodes are produced and are provided with a pasty, active mass. Immediately thereafter separator material is provided on both sides of the electrodes. The electrodes are stacked, electrically connected, and placed in a housing to form a cell unit, which is subsequently stored to effect curing of the pasty, active mass.

Abstract: A lead accumulator has a housing with a frontside, a backside, a first and second end faces, and a bottom. The housing has a plurality of cells containing acid. A lid is provided for closing the housing. The lid comprises an upper lid and a lower lid spaced from the upper lid to define a space therebetween. The space is divided by chamber walls into a plurality of chambers such that each cell has a corresponding chamber within the lid. For each cell the lid has a fill and check opening closable by a stopper. Each chamber has guides for controlling the flow of acid. The guides comprise deflecting stays and an annular stay surrounding the fill and check opening, the annular stay having a degassing and return outlet. The lid further has at least one ignition protector. The guides are designed and arranged such that, in any position of the housing, when resting on one of the side walls, acid within the chambers remains below a level above which acid flows into the ignition protector.

Abstract: A method and unit for filling electrochemical cells, especially lithium cells, with an electrolyte. The cells are first evacuated while simultaneously checking the same for short circuits. The further filling process is terminated for any cell determined to have a short circuit. After the final vacuum level has been achieved, the cells are subsequently filled with the electrolyte while simultaneously monitoring the electrical voltage at the cells. The filling process is terminated for any cell determined to have a deviation from a prescribed voltage.

Abstract: An automatically operating apparatus and method for producing cathodes for ry-cell batteries, especially lithium batteries. A strip-like carrier material to which cathode material is fed in a dosed manner is transported on an endless, continuously rotating conveyor belt system. After passing a pasting mechanism, which includes a roller, and after passing a possibly provided cleaning mechanism for exposing the contact locations for the current shunting, the cathode material subsequently passes into a pressing mechanism that includes two rotating belts. Following the pressing mechanism is a cutting device that, just like the cleaning mechanism, moves synchronously with the conveyor belt system during processing, and that cuts the carrier material in conformity with the cathode lengths. Subsequently, the current shuntings are attached.

Abstract: An oxygen electrode for alkaline galvanic cells. The electrode includes a talyst-containing carbon layer, a current collector, and a preferably foil-like separator for separating a liquid chamber from a gas chamber in such a way that the gas can pass to the carbon layer but the liquid cannot enter the gas chamber. The electrode has a structurally simple construction as a multi-layer, gas diffusion electrode, the current density of which, in the temperature range of between approximately 20.degree. and 80.degree. C., is approximately 350 mA/cm.sup.2 during operation with air, and greater than 1 A/cm.sup.2 during operation with oxygen. The current collector includes a metal grid which is at least partially embedded in a carbon layer. In the method of producing such an oxygen electrode, a catalyst salt solution is mixed with an aqueous activated carbon suspension and is deposited onto the activated carbon to form a catalyst dispersion.

Abstract: A storage battery having a case closed-off by a block cover in which, for e purpose of separating-off acid, a hollow space is formed by means of a lower cover part and an upper cover part that is spaced from the lower cover part. In conformity with the number of cells, the hollow space is divided into interconnected chambers, each of which communicates at its deepest location with an associated cell via an opening which is in the form of a tubular member.

Abstract: A galvanic element, particularly a metal-air cell, comprising a consumable etal electrode of flat shape which extends into a container containing the electrolyte, a gas-diffusion electrode which can be freely flushed by gas and particularly air from the outside, being arranged at a distance from the working surface of said electrode. In order to improve the electrolyte circulation in such a system and thus promote the electrochemical conversion, the hydrogen produced upon the electrochemical conversion is collected within the container which contains the electrolyte and the pressure which builds up is utilized for the transport of the electrolyte. For this purpose, a gas-collection space is provided in the electrolyte container so that the gas pressure can act on the electrolyte and a pipe system is present through which the electrolyte which has been displaced is conducted out of the upper region of the container into the lower region of the container.

Abstract: A battery which makes possible a long-time operation under high load. The ttery is made of a plurality of galvanic elements, especially metal-air-cells, each of which comprises a consumable metal electrode of planar shape which extends into a receptacle which is flushed with electrolyte. The sidewalls of the receptacle can be flushed free of air or oxygen. Each of the receptacles supports at least one gas diffusion electrode at a distance from the working surface of the consumable metal electrodes. In order to provide a battery which can be stored without restriction due to activation and deactivation, and which permits a rapid mechanical recharging independent of the electric circuit, a supply reservoir for the electrolyte is disposed in a housing below at least one cell unit. The supply reservoir is connected via a closure member with an electrolyte activation tank which is disposed at least partially above the working level of the electrolyte in the cells.

Abstract: A galvanic element in the form of a flat, high power cell, especially a ml-air-cell, which is cooled with cooling water, and can be assembled to a battery which comprises a plurality of cells. The flat cell comprises bipolar electrodes which have a consumable metal electrode in flat form as an anode, a cathode (oxygen electrode), and a liquid electrolyte. It is an object of the present invention to be able to control the temperature, especially for cooling, of each individual electrode directly by means of a medium which is independent of the liquid electrolyte. For this purpose, the bipolar electrodes are electrically interconnected, and between them is arranged a gasket which forms a cooling chamber. As a result, the heat balance and temperature of not only the anode but also of the cathode can be controlled directly.

Abstract: For casting bridges having cell connecting flanges or and poles, respectiy, formed thereon or on the connecting lugs of lead storage battery grids use is made of molds in which mold troughs for liquid lead are developed. In order to increase the life, reduce the heating time and produce a crack-free connection of the grid lugs with the cell connecting flanges, the mold troughs of the mold are developed as individual mold segments which can be separated from each other and are assembled in a segment holder to form the entire mold. The individual mold segments can in particular for this be provided with a heat insulation for the mold trough.

Abstract: A lip seal of elastic material has at least one sealing lip having a knife-edge sealing ridge particularly for sealing an axially moving part of a device from a liquid space, for instance in a galvanic metal-air cell. In order to improve the sealing of the axially moving device part with respect to the liquid space and to lengthen the sealing action, a membrane-like protective lip is formed on the liquid side in front of the sealing ridge, the lip resting with areal contact against the device part which is to be sealed off. The membrane-like protective lip due to its inherent tension or initial tension applies itself with high unit surface pressure against the surface of the device part to be sealed off.