Continental Automotive Gmbh

Zentrum Fur Sonnenenergie Und Wasserstoff Forschung Baden-wurttemberg Gemeinnutzige Stiftung

Zentrum Für Sonnenenergie- Und Wasserstoff-forschung Baden-wür Ttembert Gemeinnützige Stiftung

Olaf Böse

Hans-Georg Schweiger

Ludwig Jörissen

Jerry Bamfo Asante

Peter Birke

Michael Keller

Michael Schiemann

Harald Brazel

Michael Wörz

Harry Döring

Daniel Becher

Bruno Bausch

Michael WÖRZ

Ans-Georg Schweiger

Nickel electrodes having high mechanical stability and advantageous electrochemical properties, in particular, enhanced gas evolution in water electrolysis, are described. These electrodes comprising electrically conductive nickel wire mesh or a lattice-like nickel expanded metal webs, and a layer of mutually adherent nanoporous nickel particles applied only to either the nickel mesh wires or the nickel expanded metal webs, obtainable by partially reducing the spherical nickel hydroxide particles in a reducing atmosphere between 270 to 330&#xb0; C. to obtain partially reduced, spherical Ni/NiO particles, producing a paste from the Ni/NiO particles, an organic and/or inorganic binder, a surfactant and, optionally, additional adjuvants, applying the paste as a coating to the electrically conductive nickel mesh or nickel expanded metal, and annealing the coated nickel mesh or nickel expanded metal in a reducing atmosphere at 500 to 800&#xb0; C. A method for manufacturing the nickel electrode is also described.

Nickel electrode, method for manufacturing same, and use thereof

The invention relates to a reversible manganese dioxide electrode, comprising an electrically conductive carrier material having a nickel surface, a nickel layer made of spherical nickel particles adhering to each other and having an inner pore structure applied to the carrier material, and a manganese dioxide layer applied to the nickel particles, wherein the manganese dioxide layer is also present in the inner pore structure of the nickel particle. The invention also relates to a method for producing such a manganese dioxide electrode, the use thereof in rechargeable alkaline-manganese batteries, and a rechargeable alkaline-manganese battery containing a manganese dioxide electrode according to the invention.

Reversible manganese dioxide electrode, method for the production thereof, the use thereof, and rechargeable alkaline-manganese battery containing said electrode

Nickel electrodes comprising an electrically conductive nickel sheet and a nickel layer deposited thereon which consists of spherical, porous nickel particles which adhere to each other, made by the method of partially reducing spherical nickel hydroxide particles in a reducing atmosphere at elevated temperatures to obtain partially reduced spherical Ni/NiO particles, preparing a paste from the Ni/NiO particles obtained and an organic and/or inorganic binder as well as further excipients as required, applying the paste in a layer to one or both sides of the electrically conductive nickel sheet, and tempering the coated nickel sheet in a reducing atmosphere at elevated temperatures. Self-supporting nickel layers of spherical, porous nickel particles which adhere to each other. Producing nickel electrodes and the self-supporting nickel layer, and use thereof, particularly as an electrode for water electrolysis.

Nickel electrode, self-supporting nickel layer, method for production thereof, and use thereof

An electrochemical or electric layer system, having at least two electrode layers and at least one ion-conducting layer disposed between two electrode layers. The ion-conducting layer has at least one ion-conducting solid electrolyte and at least one binder at grain boundaries of the at least one ion-conducting solid electrolyte for improving the ion conductivity over the grain boundaries and the adhesion of the layers.

Electrochemical or electric layer system, method for the production and use thereof

Energy storage arrangement for safely discharging an energy accumulator with electric poles via which the energy accumulator can be at least discharged, an electrically conductive conductor medium in the form of a fluid or fine-grained bulk material or a mixture of both, a reservoir container which is filled with the conductor medium, a collecting container which is provided for accommodating the conductor medium and which encloses the electric poles of the energy accumulator, and a triggerable discharging device, by means of which, in the case of triggering, conductor medium is discharged from the reservoir container into the collecting container such that the electric poles of the energy accumulator are connected to one another in an electrically conductive fashion via the conductor medium.

Arrangement and method for safely discharging an energy accumulator

An energy storage cell has a cell body with an areal expansion in an extension plane, with four side faces bounding a circumference of the area of extent and having each two of the side faces parallel to one another. A conductor electrode and a second electrode are disposed on one of the side faces symmetrically in the direction of the circumference of the extension plane relative to a center of the corresponding side face. A line from a contact point between an inward facing edge of the electrodes to a center point of the extension plane encloses an angle &#x3bb; of 10&#xb0;&#x3c;&#x3bb;&#x3c;36&#xb0; with the corresponding side face. The center of the side face and/or a contact point of an outward facing edge of the electrodes forms an angle &#x3b2; about the center point of the extension plane of 8&#xb0;&#x3c;&#x3b2;&#x3c;45&#xb0; with the corresponding side face with said center.

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Neu-Ulm, Germany

Olaf Böse