Patents by Inventor Felix KIEFL

Felix KIEFL 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).

  • Cell and cell stack of a redox flow battery, and method for producing said cell stack
    Patent number: 10985395
    Abstract: The invention relates to a cell (2) of a redox flow battery, having at least two cell frame elements (7, 8, 9, 10), having a membrane (12) and having two electrodes (11), wherein the at least two cell frame elements, the membrane and the two electrodes close off two mutually separate cell interior spaces (4), wherein, in the at least two cell frame elements, at least four separate ducts (13, 14, 15, 16) are provided in such a way that the two cell interior spaces can be flowed through by different electrolyte solutions, and wherein the cell is, aside from the at least four separate ducts, of liquid-tight form. The invention also relates to a cell stack (1) of a redox flow battery having at least one such cell. Here, the invention proposes a particular form of the cell frame of the cell stack, and an inexpensive and simple method for manufacturing the cell stack.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: April 20, 2021
    Assignee: VoltStorage GmbH
    Inventors: Jakob Bitner, Felix Kiefl, Michael Peither
  • CELL AND CELL STACK OF A REDOX FLOW BATTERY, AND METHOD FOR PRODUCING SAID CELL STACK
    Publication number: 20190157700
    Abstract: The invention relates to a cell (2) of a redox flow battery, having at least two cell frame elements (7, 8, 9, 10), having a membrane (12) and having two electrodes (11), wherein the at least two cell frame elements, the membrane and the two electrodes close off two mutually separate cell interior spaces (4), wherein, in the at least two cell frame elements, at least four separate ducts (13, 14, 15, 16) are provided in such a way that the two cell interior spaces can be flowed through by different electrolyte solutions, and wherein the cell is, aside from the at least four separate ducts, of liquid-tight form. The invention also relates to a cell stack (1) of a redox flow battery having at least one such cell. Here, the invention proposes a particular form of the cell frame of the cell stack, and an inexpensive and simple method for manufacturing the cell stack.
    Type: Application
    Filed: April 3, 2017
    Publication date: May 23, 2019
    Applicant: VoltStorage GmbH
    Inventors: Jakob BITNER, Felix KIEFL, Michael PEITHER