Verdagy, Inc.

Provided herein are anode and/or cathode pan assemblies comprising unique manifold, outlet tube, and/or baffle plate configurations; electrochemical cell and/or electrolyzer containing the anode and/or the cathode pan assemblies; and methods to use and manufacture the same.

A method of operating an electrolyzer including an electrochemical cell includes detecting and/or causing a change in an electrical output of an electrolyzer power source electrically connected to an anode and a cathode of the electrochemical cell. The method includes, responsive to the detected and/or caused change in the output, feedforward controlling the electrolyzer to maintain a pressure of the cathode electrolyte output stream gas collector and/or the anode electrolyte output stream gas collector within a predetermined respective pressure range.

A method of operating an electrolyzer includes changing a current density associated with operation of the electrolyzer based on one or more electricity input factors, or one or more hydrogen output factors, or both.

An electrochemical electrode assembly comprises an electrode having a first electrode face and a second electrode face opposing the first electrode face, a support member configured to be coupled to a housing of an electrolyzer cell, an elastic element comprising a plurality of resilient filaments coupled together into a resilient body, wherein the elastic element is compressed between the support member and the electrode so that the elastic element generates a controlled load against the first electrode face, and a protective insert abutted against the second electrode face along at least a portion of a first edge of the electrode, wherein the protective insert prevents filaments of the elastic element from protruding beyond the second electrode face.

A method comprises applying a slurry to one or more surfaces of a conductive substrate to form a precursor coating and provide a precursor coated substrate, wherein the slurry includes precursor particles comprising one or more precursor compounds in a slurry medium, and electrochemically oxidizing the one or more precursor compounds to chemically convert the one or more precursor compounds to one or more catalyst compounds and form catalyst particles adhered to the one or more surfaces of the conductive substrate to provide a catalyst coated substrate.

An electrolyzer cell comprises a first half cell comprising a housing at least partially enclosing a cell interior, a first electrode coated with a first catalyst coating, wherein the first electrode is coupled to the housing in the cell interior without welding, a second electrode coupled to the housing in the cell interior without welding, and a separator positioned between the first electrode and the second electrode, wherein a voltage is applied between the first electrode and the second electrode.

An electrochemical electrode assembly comprises an electrode having a first electrode face and a second electrode face opposing the first electrode face, a support member configured to be coupled to a housing of an electrolyzer cell, an elastic element comprising a plurality of resilient filaments coupled together into a resilient body, wherein the elastic element is compressed between the support member and the electrode so that the elastic element generates a controlled load against the first electrode face, and a protective insert abutted against the second electrode face along at least a portion of a first edge of the electrode, wherein the protective insert prevents filaments of the elastic element from protruding beyond the second electrode face.

An electrolyzer system comprises one or more electrolyzer cells each comprising a first half cell with a first electrode and a second half cell with a second electrode and a controller to control a current applied through the one or more electrolyzer cells, wherein the controller is configured to dynamically set the current density within a current density range of from about 150 mA/cm 2 to about 3000 mA/cm 2 , and wherein the controller is configured to set the current density to a first value when a first condition is met and to a second value when a second condition is met.

A method comprises coprecipitating one or more precursor compounds from a solution comprising one or more first metal salts and one or more second salts to produce precipitated precursor particles, forming a slurry of the precipitated precursor particles, applying the slurry to one or more surfaces of a conductive substrate to provide a slurry coated substrate, and baking the slurry coated substrate at specified calcination conductions to convert the one or more precursor compounds of the precipitated precursor particles to spinel particles that are adhered to the one or more surfaces of the conductive substrate, wherein the spinel particles comprise a spinel with the general chemical formula AB 2 O 4 .

Provided herein, are anode and/or cathode pan assemblies comprising unique ribs and welds configurations; electrochemical cell and/or electrolyzer containing the anode and/or the cathode pan assemblies; and methods to use and manufacture the same.