Hagen Batterie Ag

Accumulatorenwerke Hoppecke Carl Zoellner & Sohn Gmbh & Co. Kg

Other

Metallgesellschaft Aktiengesellschaft

Accumulatorenwerke Hoppecke

Eberhard Nann

Rainer Wagner

Christian Bohle

Ulrich Romling

Jean P Ruch

Fritz Beck

Ulrich Heubner

Wilhelm Cramer

Josef Gurtler

Ulrich Wulf

Holger Krohn

Walter Bernardi

Udo D Muhlhan

Hermann Hester

Gerhard Pospiech

Peter Scharf

Wieland Rusch

Walter Wipperfurth

Reinhold Wiedenmann

Werner Hampe

Karl-Christoph Berger

Manfred Hülscher

Franz-Josef Kohaupt

Peter Gleuel

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. The inner cartridge and the plug element can be joined in gas-tight fashion, and the inner cartridge features an installation fitting which in the assembled state of the system protrudes at least partially from the cavity of the plug element.

Vent plug system for storage batteries

The problem of this invention is based on specifying a process for producing an industrial electrolyte that can be designed in the form of a thixotropic gel in the cells of lead storage batteries, with which large quantities of the liquids needed to fill the lead storage batteries can be prepared and mixed to improve its industrial usability. For the technical solution to this problem, the invention proposes that in the active masses of positive and negative plates in the storage battery cells, the quantity of sulfuric acid necessary to adjust the final acid density of the industrial electrolyte for the ready-to-use storage battery be stored in the form of lead sulfate, while, independently of this, water is set to a pH value from 4.1 to 4.7 by adding an acid and is then mixed with a gel former.

Process for producing an industrial electrolyte for lead storage batteries in the form of a thixotropic gel

This invention concerns a plug system for capping cell vents ( ) of a storage battery, consisting of a plug body ( ) that can be inserted in a cell vent ( ), holding a plug ( ) and a valve element ( ), thus providing a normally closed fluidic connection between the inside ( ) of the cell and the atmosphere surrounding the storage battery.

Plug system for capping cell vents in a storage battery and a battery cap for use in the plug system

A method for manufacturing a battery cover includes applying electrically conducting elements to at least a portion of a surface of the cover so as to span the surface. The electrically conducting elements are connected to one another and to at least one of the battery poles for dissipating electrical charge.

Method for manufacturing a battery cover which is at least partially

A method of forming metallic current conducting lugs on an accumulator electrode plate wherein at least the region where the current conducting lug has to be formed comprises a plastic net structure which is preferably provided with a metallization which conducts electricity well, in particular of copper, which is in turn provided with a tin or lead/tin coating and/or a lead coating or a lead alloy coating. Metal strips of an alloy which melts at low temperature are applied to the two oppositely disposed surfaces of the plastic net structure in the region of the current conducting lug which is to be formed. The strips cover over at least the upper region of the current conducting lug which is to be formed. The two metal strips are pressed together from the flat sides with a high pressure while clamping the plastic net structure, preferably while being heated to a temperature which at least softens the metal strips, and preferably melts them at the edges but does not yet allow the plastic net structure to be melted or decomposed. The metal of the metal strips flows into the plastic net structure and the two metal strips are connected together at least at the edges, but preferably also in the interior of the plastic net structure.

Method of forming metallic current conducting lugs at electrode plates

A method for determining at least one physical parameter of accumulator electrode plates, such as the true plate thickness P.sub.d, the apparent density D.sub.s of the active material, the true density D.sub.w of the active material, the pore volume P.sub.a, the porosity P.sub.0 of the active material or the pore structure, is performed such that, by means of various weighings, the weight (G.sub.FP) of a liquid plate is determined instead of the weight of a real electrode plate, and, from this value, the desired physical parameter is obtained which is used for controlling the production process.

Method and apparatus for determining at least one physical parameter of

A grid casting mold for the casting of accumulator lead grids has two plates (11, 12) which can be placed against one another with a casting profile (13) or mold cavity complementary to the lead grid which is to be manufactured being formed in their confronting mold surfaces. The plates (11, 12) moreover have a base body (14, 15) which is provided at the profile side with a thermally insulating layer (16, 17) of high temperature fiber ceramic material which is coated on the side remote from the base body (14, 15) with a high wear resistant metal oxide (18, 19).

Grid casting mold for the casting of lead grids for accumulators and

In a method for the electrical measurement of the concentration of acids a measurement electrode (11) consisting at least predominantly of crystalline graphite is arranged in an acid (12) having anions which form graphite intercalation compounds with graphite. The measurement electrode (11) is then intercalated by generating in the measurement electrode (11), at a variable positive potential, a current of such a size that the anions of the acids (12) can from graphite intercalation compounds with the graphite. The current is maintained until the intercalation compounds have formed at the surface. The potential at the measurement electrode (11) is then measured and used as a measure for the acid concentration. The measurement electrode (11) is subsequently deintercalated again.

Method of electrically measuring the concentration of acids

The invention concerns a sheet material and separator envelopes manufactured therefrom for enclosing electrode plates of batteries. The cited object is to improve the manufacturability of the heat-sealed or bonded seams of the electrode envelopes and to prevent puncturing or rupturing of the separator envelopes due to growth of the positive grid. This object is achieved by means of a base-sheet thickness for the sheet material used to manufacture the separator envelopes which is greater in the region of the marginal areas than in the region of the inner surface of the sheet material or separator envelopes.

Sheet material and separator envelopes manufactured therefrom for the

The invention concerns a storage battery that is protected against the discharge of acid, with fleece separators which completely fill the space between the electrode plates. It is proposed that spacers be built into the fleece separators during a preliminary production step of the separator material. These spacers have support surfaces which are situated at least on one side of the separator material below the surface of said separator material and which preferably extend approximately parallel to the surface of the separator material. The spacers can be fixed in position by a preferably very thin and wide-meshed screen that has been worked into the separator material.

Storage battery that is protected against the discharge of acid

In a method of manufacturing accumulator plate sets separator sheets (15) consisting of glass fleece are cut to size and are adhesively bonded to form pockets after being folded around a positive grid plate laid thereon. A predetermined compressive stress is maintained in the plate set (18) by bands (21) placed around it, whereupon the plate sets are then inserted into an accumulator housing (20).

Method of manufacturing accumulators having accumulator plate sets and

A negative electrode for lead accumulators has the shape of a rectangular planar grid plate (11) consisting of expanded copper metal which serves as a carrier for the active mass and for the supply and extraction of current. The grid plate (11) consists of two side regions of expanded copper metal (14) and a copper strip (12) which is arranged between them in one piece therewith, and which projects at one end beyond the regions of expanded copper metal in order to form the connection lug (13). A current conducting strip is formed at the upper edge of the regions (14) of the expanded metal grid by the appropriately cut-off webs (15) which are bent towards one another into mutual contact at the edge (16) of the expanded copper metal regions (14) at the connection lug side.

Negative electrode for lead accumulators

The invention relates to a thin sheet material which can be bonded for the production of separator pockets for lead accumulators in which, in particular, the positive plates of the lead accumulators provided with a web covering are jacketed. It is the objective to optimize the production of the separator pockets and the web covering of the plates and to obtain a better utilization of the positive mass. This objective is met by a web covering which is directly applied to the sheet material for the production of the separator pockets and has an area extension which is smaller than the inside area of the sheet material defined by the provided bonding seams of the separator pocket wherein the web covering preferably consists of an electrically conductive material.

Sheet material for the production of separator pockets for lead

A low-antimony lead alloy for use in the manufacture of paste-holding grids for lead-acid storage batteries contains 0.05 up to but less than 1.5 percent antimony. Such alloys represent an optimum combination of good processability, freedom from need for maintenance, low self-discharge rate and high cycle strength.

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Soest-Deiringsen, Germany

Eberhard Nann