Patents by Inventor Alexander TORNOW

Alexander TORNOW has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12607575
    Abstract: A method for determining the placement accuracy of a plurality of electrode sheets, wherein the electrode sheets extend on mutually parallel planes and are stacked on top of one another and form a stack; wherein the placement accuracy describes positions of the edges of all of the electrode sheets relative to one another in the stack; wherein the method is carried out using a measuring device having a two-dimensionally resolving X-ray system with at least one beam source for X-ray radiation and a detector.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: April 21, 2026
    Assignee: PowerCo SE
    Inventors: Mathias Kraken, Erik Rohkohl, Sven Rathmann, Malte Schönemann, Alexander Tornow
  • Patent number: 12350796
    Abstract: A clamping system for fixing in position a stack of electrode foils for the downstream manufacturing of battery cells, including a base plate, a pressure plate, at least two clamping elements and a receiving region for receiving the stack between the base plate and the pressure plate, the clamping elements clamping together the base plate and the pressure plate in a way that enables the electrode foils to be fixed in position in the receiving region, the clamping elements being located in the edge regions of the respective long sides of the plates outside of the receiving region, and/or the base plate and the pressure plate each having a plurality of, however, at least two, attachment points for connecting the clamping system to apparatuses of the downstream battery cell production in that the attachment points of a particular plate are differently embodied in the shape or size thereof.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: July 8, 2025
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Sven Rathmann, Kai Stühm, Alexander Tornow
  • Patent number: 12183870
    Abstract: The invention relates to a method for producing a cathode apparatus (16) for a battery (8), especially of a motor vehicle (2), whereby a cathode strip (20) is provided, whereby a cathode (16a) is cut out of the cathode strip (20), whereby the cathode (16a) is placed between two strip-shaped separator foils (16d), and whereby, in a joint step, the two separator foils (16d) are cut to size in an area that protrudes beyond the cathode (16a), thereby forming appropriate separator foil cutouts (16f), and these two separator foil cutouts (16f) are also joined to each other in this area, especially fused together.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: December 31, 2024
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Alexander Tornow, Sven Rathmann, Kai Stuehm-Van Doren
  • Publication number: 20240421433
    Abstract: A method for producing an electrode separator composite, which is a component of an electrode separator stack for a battery cell, and which electrode separator composite is formed of at least one electrode layer and at least one separator layer. The method comprises the following steps: a laying process, in which the electrode and separator layers are laid on top of one another; and a joining process, with which an adhesive connection is formed between the electrode and separator layers laid on top of one another. The joining process involves a plasma treatment, in which there is a surface activation of the electrode and/or separator layers using plasma, such that an adhesive connection is provided between the respective joining partners.
    Type: Application
    Filed: August 25, 2024
    Publication date: December 19, 2024
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Christian KLEMT, Tobias JANSEN, Alexander TORNOW, Marco JORDAN, Adrian BECKER, Dennis BOEHM
  • Publication number: 20240396090
    Abstract: A method for manufacturing a solid-state cell battery having a support film, a separator, a cathode and a continuous collector film. The support film is placed on a work table. A first layer of the continuous collector film is supplied by a roller device. The separator, cathode, and a further separator are arranged in a stacking process to form a cell stack. A second layer of the continuous collector film is supplied via a roller device. The collector film is positioned by a horizontal displacement of the work table and/or by a horizontal displacement of at least one guide roller of the roller device relative to the cell stack, as a result of which a fold is made in the collector film. A system for manufacturing a solid-state cell battery and a solid-state cell battery are also provided.
    Type: Application
    Filed: August 7, 2024
    Publication date: November 28, 2024
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Tobias JANSEN, Christian KLEMT, Alexander TORNOW
  • Publication number: 20230387470
    Abstract: A monocell and a method for producing a monocell for a battery cell. In this method, a first separator film, an anode film, a second separator film, and a cathode film are stacked in this sequence to form a film layer arrangement and fed to a thermal cutting process. The cutting of the film layer arrangement is accomplished by a thermal cutting method, wherein a first metal coating on the anode film and a second metal coating on the cathode film vaporize in the cut region. The plastic substrate of the anode melts partially and spreads over the cut surface of the first anode layer and electrically insulates the same. The plastic substrate of the cathode melts partially and spreads over the cut surface of the first cathode layer and electrically insulates the same.
    Type: Application
    Filed: May 30, 2023
    Publication date: November 30, 2023
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Dennis BOEHM, Tobias JANSEN, Christian KLEMT, Alexander TORNOW, Marco JORDAN, Adrian BECKER
  • Patent number: 11757139
    Abstract: The present invention relates to a method for inspection of a multilayer electrode sheet for a battery cell, comprising at least the following steps: joining together at least two functional layers; connecting the functional layers to form an electrode-separator assembly; detecting at least part of a surface of the electrode-separator assembly by means of a detection device for generating a measurement result; evaluating the generated measurement result and generating an evaluation result; and outputting the evaluation result.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: September 12, 2023
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Marco Jordan, Alexander Tornow
  • Publication number: 20230003670
    Abstract: A method for determining the placement accuracy of a plurality of electrode sheets, wherein the electrode sheets extend on mutually parallel planes and are stacked on top of one another and form a stack; wherein the placement accuracy describes positions of the edges of all of the electrode sheets relative to one another in the stack; wherein the method is carried out using a measuring device having a two-dimensionally resolving X-ray system with at least one beam source for X-ray radiation and a detector.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 5, 2023
    Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Mathias KRAKEN, Erik ROHKOHL, Sven RATHMANN, Malte SCHÖNEMANN, Alexander TORNOW
  • Publication number: 20220029189
    Abstract: The invention relates to a method for producing a cathode apparatus (16) for a battery (8), especially of a motor vehicle (2), whereby a cathode strip (20) is provided, whereby a cathode (16a) is cut out of the cathode strip (20), whereby the cathode (16a) is placed between two strip-shaped separator foils (16d), and whereby, in a joint step, the two separator foils (16d) are cut to size in an area that protrudes beyond the cathode (16a), thereby forming appropriate separator foil cutouts (16f), and these two separator foil cutouts (16f) are also joined to each other in this area, especially fused together.
    Type: Application
    Filed: October 21, 2019
    Publication date: January 27, 2022
    Inventors: Alexander TORNOW, Sven RATHMANN, Kai STUEHM-VAN DOREN
  • Publication number: 20210265673
    Abstract: The present invention relates to a method for inspection of a multilayer electrode sheet for a battery cell, comprising at least the following steps: joining together at least two functional layers; connecting the functional layers to form an electrode-separator assembly; detecting at least part of a surface of the electrode-separator assembly by means of a detection device for generating a measurement result; evaluating the generated measurement result and generating an evaluation result; and outputting the evaluation result.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Marco JORDAN, Alexander TORNOW
  • Publication number: 20200122301
    Abstract: A clamping system for fixing in position a stack of electrode foils for the downstream manufacturing of battery cells, including a base plate, a pressure plate, at least two clamping elements and a receiving region for receiving the stack between the base plate and the pressure plate, the clamping elements clamping together the base plate and the pressure plate in a way that enables the electrode foils to be fixed in position in the receiving region, the clamping elements being located in the edge regions of the respective long sides of the plates outside of the receiving region, and/or the base plate and the pressure plate each having a plurality of, however, at least two, attachment points for connecting the clamping system to apparatuses of the downstream battery cell production in that the attachment points of a particular plate are differently embodied in the shape or size thereof.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 23, 2020
    Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Sven RATHMANN, Kai STÜHM, Alexander TORNOW