Patents by Inventor Richard ESPESETH

Richard ESPESETH 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).

  • Publication number: 20250101619
    Abstract: It is described a high-pressure alkaline electrolyzer for splitting water into hydrogen and oxygen, said electrolyzer comprising a stack of electrolysis cells (1), with channels supplying lye to the cathodes and anodes and channels conducting hydrogen from the cathodes and oxygen from the anodes.
    Type: Application
    Filed: December 22, 2022
    Publication date: March 27, 2025
    Inventor: Richard ESPESETH
  • Publication number: 20240263326
    Abstract: The present invention relates to a method for producing an electrode for alkaline electrolysis based on a composition of metal sulfides on a Ni foam substrate. The metal can be Mo, Ni, Co, Fe and/or W. In a first step S1), there is performed a metal deposition, e.g. by electroplating, the metal, Me1/Me2, being Mo, Ni, Co, Fe, and/or W, on a Ni foam substrate resulting in a metal-Ni compound being formed on and/or in the Ni foam substrate. In a second step, S2) there is performed a sulfiding on the metal-Ni compound from the first step S1). The third step S3) is an optional repetition of S1 and/or S2 at least one time. The step S1) and step S2) thereby result in the formation of electrocatalytic active nano-sites with Me1-Me2-S—Ni compounds. It is found that these nano-sites are capable of reducing the so-called overpotential of the electrodes during alkaline water electrolysis, and the production of electrodes may be significantly simplified.
    Type: Application
    Filed: May 19, 2022
    Publication date: August 8, 2024
    Inventors: Lars Pleth NIELSEN, Richard ESPESETH, Per MØLLER, Marcus Viktor KRAGH-SCHWARZ, Morten Linding FREDERIKSEN
  • Publication number: 20240229259
    Abstract: The present invention relates to a method for producing an electrode for alkaline electrolysis based on a composition of sulfides on a Ni foam substrate. In a step. S2) there is performed a sulfiding on the Ni substrate. The step of sulfiding results in the formation of electrocatalytic active nano-sites with Ni—S compounds. It is found that these nano-sites are capable of reducing the so-called overpotential of the electrodes during alkaline water electrolysis, and the production of electrodes may be significantly simplified. In particular, already existing electrolyzer units may benefit from this invention by on-site application of the improved method.
    Type: Application
    Filed: May 19, 2022
    Publication date: July 11, 2024
    Inventors: Lars Pleth NIELSEN, Richard ESPESETH, Per MØLLER, Marcus Viktor KRAGH-SCHWARZ, Morten Linding FREDERIKSEN