240 patents
Page 3 of 12
Utility
Compressor Integration and Safe Operation Start Up for Atmospheric Operation of Soec Systems
20 Jul 23
A compressor for a solid oxide electrolyzer cell (SOEC) system, the system including one or more stamps that receives hydrogen input and outputs wet hydrogen, a heat exchanger or condenser that is configured to decrease the temperature of the wet hydrogen, a compressor that is configured to increase the pressure of the wet hydrogen, and a dryer that is configured to reduce the dew point of the wet hydrogen.
Joshua MERMELSTEIN
Filed: 18 Jan 23
Utility
Steam Recycle Control
20 Jul 23
A solid oxide electrolyzer cell (SOEC) system including a stack of electrolyzer cells configured to receive water or steam in combination with hydrogen, and a steam recycle outlet configured to recycle a portion of the water or steam
Alireza SAEEDMANESH, Ehsan RAOUFAT, Ali ZARGARI, Julio LUNA
Filed: 17 Jan 23
Utility
Solid Oxide Fuel Cell System with Hydrogen Pumping Cell with Carbon Monoxide Tolerant Anodes and Integrated Shift Reactor
20 Jul 23
A fuel cell system includes a fuel cell stack, a fuel inlet conduit configured to provide a fuel to a fuel inlet of the fuel cell stack, an electrochemical pump separator containing an electrolyte, a cathode, and a carbon monoxide tolerant anode, a fuel exhaust conduit that operatively connects a fuel exhaust outlet of the fuel cell stack to an anode inlet of the electrochemical pump separator, and a product conduit which operatively connects a cathode outlet of the electrochemical pump separator to the fuel inlet conduit.
Chockkalingam KARUPPAIAH, Michael GASDA, Arne BALLANTINE, Martin PERRY, Andy TA, Kyle KEKELIS, Srikanth RANGANATHAN
Filed: 27 Mar 23
Utility
Interconnect for fuel cell stack
18 Jul 23
Various embodiments include fuel cell interconnects having a fuel distribution portion having an inlet opening, a fuel collection portion having an outlet opening, and a primary fuel flow field containing channels, wherein the fuel distribution portion comprises at least one raised feature defining a fuel distribution flow path, and the fuel distribution flow path is not continuous with the channels in the primary fuel flow field.
Daniel Darga, Cheng-Yu Lin, Vijay Srivatsan
Filed: 19 May 21
Utility
Optimized Processing of Electrodes for SOFC and SOEC
13 Jul 23
Techniques for fabricating a solid oxide electrolyzer cell (SOEC) including sintering an electrolyte, printing a fuel-side electrode disposed on a fuel side of the electrolyte, printing an air-side electrode disposed on an air side of the electrolyte, first sintering a combination of the electrolyte, fuel-side electrode, and air-side electrode, printing a barrier layer an air side of the electrolyte, printing a functional layer on the barrier layer, printing a collector layer on the functional layer, and second sintering a combination of the electrolyte, fuel-side electrode, air-side electrode, barrier layer, functional layer, and collector layer.
Tad ARMSTRONG, Justin RAILSBACK
Filed: 10 Jan 23
Utility
Steam Use and Safety Systems
13 Jul 23
A solid oxide electrolyzer cell (SOEC) system including a stack of electrolyzer cells configured to receive water or steam in combination with hydrogen, and a steam recycle outlet configured to recycle a portion of the water or steam
Shannon BELL, Jessica MAHLER
Filed: 9 Jan 23
Utility
Vaporizer and External Steam for Solid Oxide Electrolyzer
13 Jul 23
An electrolyzer system including a hotbox, one or more stacks disposed within the hotbox, a fuel exhaust conduit that receives fuel exhaust output by the stack, a fuel exhaust separator that separates liquid from the fuel exhaust, and a recycling conduit that fluidly connects the fuel exhaust to the fuel inlet conduit.
Siddharth PATEL, Navaneethakrishnan GOVINDARASU, Andy TA, David WEINGAERTNER, Cory MCCLINTIC, Ryan JOHNSON, Samuel JUDAY, Kim NGUYEN
Filed: 9 Jan 23
Utility
DC transfer switch for fuel cell systems with auxiliary storage module
27 Jun 23
A power generation method includes providing power from a first DC power source to a load, while a second DC power source is electrically disconnected from the load, electrically connecting the second DC power source to the load and providing power from the second DC power source to the load if an output voltage from the first DC power source drops below a threshold voltage and an output voltage from the second DC power source is not below the threshold voltage, and electrically disconnecting the first DC power source from the load if an output current of the first DC power source is below a threshold current.
Prasad Pmsvvsv, Vignan Reddy Bommireddy, Mehdi Ebad, Beau Baker
Filed: 14 May 21
Utility
Fuel cell system with electrical control of fuel utilization and method of operating thereof
30 May 23
A fuel cell system column includes a first terminal plate connected to a first electrical output of the column, a second terminal plate connected to a second electrical output of the column, at least one first fuel cell stack located in a middle portion of the column between the first terminal plate and the second terminal plate, and at least one electrical connection which is electrically connected to the middle portion of the column and which is configured to provide a more uniform fuel utilization across the first column.
Tad Armstrong, Harald Herchen, David Weingaertner, Rajan Surve, Matthias Gottmann, Prasad Pmsvvsv, Ranganathan Gurunathan, Arne Ballantine, Michael Gasda, Tyler Dawson, Chockkalingam Karuppaiah
Filed: 12 Feb 21
Utility
Fuel cell system containing water injector and method of operating the same
23 May 23
A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.
David Weingaertner, Ivan Hartana, David Edmonston, Michael Petrucha, Martin Perry
Filed: 5 Nov 21
Utility
Fuel Cell Interconnect Optimized for Operation In Hydrogen Fuel
18 May 23
A fuel cell interconnect includes fuel ribs disposed on a first side of the interconnect and a least partially defining fuel channels, and air ribs disposed on an opposing second side of the interconnect and at least partially defining air channels.
Michael GASDA, Cheng-Yu LIN, Ling-Hsiang CHEN, Harald HERCHEN, Ian RUSSELL, Tad ARMSTRONG
Filed: 8 Nov 22
Utility
Fuel Cell System Including Anode Exhaust Diversion and Method of Operating the Same
18 May 23
A method of operating a fuel cell system includes providing fuel and air to a stack of fuel cells located in a hotbox, operating the stack to generate an anode exhaust and a cathode exhaust, in a startup mode, providing a first amount of the anode exhaust and the cathode exhaust to an anode tail gas oxidizer (ATO) located in the hotbox to oxidize the anode exhaust and to generate heat which is provided to the stack, and in a steady-state mode, stopping providing the anode exhaust to the ATO or providing to the ATO a second amount of the anode exhaust which is smaller than the first amount, and providing the anode exhaust and the cathode exhaust outside the hotbox.
David WEINGAERTNER, Michael PETRUCHA
Filed: 8 Nov 22
Utility
Fuel Cell System Including Fuel Exhaust Processor and Method of Operating the Same
18 May 23
A fuel cell system and method, the system including a hotbox, a fuel cell stack disposed in the hotbox, an anode tail gas oxidizer (ATO) disposed in the hotbox, and a fuel exhaust processor fluidly connected to the hotbox.
Srikanth RANGANATHAN, David WEINGAERTNER, Ryan JOHNSON, Jayakumar KRISHNADASS
Filed: 11 Nov 22
Utility
Fuel Cell Column Including Stress Mitigation Structures
18 May 23
A fuel cell column includes a stack of alternating fuel cells and interconnects, where the interconnects separate adjacent fuel cells in the stack and contain fuel and air channels which are configured to provide respective fuel and air to the fuel cells. a manifold plate containing a bottom inlet hole and a bottom outlet hole located in a bottom surface of the manifold plate, top outlet holes and top inlet holes formed in opposing sides of a top surface of the manifold plate, outlet channels fluidly connecting the top outlet holes to the bottom inlet hole, and inlet channels fluidly connecting the top inlet holes to the bottom outlet hole, and a mitigation structure configured to reduce stress applied to the stack due to at least one of a shape mismatch or coefficient of thermal expansion mismatch between the stack and the manifold plate.
Michael GASDA, Robert HINTZ, Karanpal BHANGU, Siddharth PATEL, Harald HERCHEN, Victor SILVA, Thuy Thanh MUHL, Tyler DAWSON, David EDMONSTON, Tad ARMSTRONG
Filed: 10 Nov 22
Utility
Electrolyzer System with Steam Generation and Method of Operating Same
18 May 23
An electrolyzer system and a fuel cell system that include hydrogen blowers configured to compress hydrogen streams generated by the systems.
David WEINGAERTNER, Martin PERRY
Filed: 30 Sep 22
Utility
Fuel Cell System Including Catalyst Ring Anode Tail Gas Oxidizer
11 May 23
A fuel cell system anode tail gas oxidizer (ATO) includes an inner ATO wall, an outer ATO wall, and a first catalyst ring disposed in a chamber formed between the inner ATO wall and the outer ATO wall.
Michael PETRUCHA, John FISHER, Nilanjana BASU, Martin PERRY, Srikanth RANGANATHAN, Victor SILVA
Filed: 17 Mar 22
Utility
Ni-Fe BASED CATHODE FUNCTIONAL LAYERS FOR SOLID OXIDE ELECTROCHEMICAL CELLS
11 May 23
A solid oxide electrochemical cell includes a solid oxide electrolyte, an anode located on a first side of the solid oxide electrolyte, and a cathode located on a second side of the solid oxide electrolyte.
Tad ARMSTRONG
Filed: 4 Nov 22
Utility
Solid Oxide Electrolyzer Cell Including Electrolysis-tolerant Air-side Electrode
11 May 23
A solid oxide electrolyzer cell (SOEC) includes a solid oxide electrolyte, a fuel-side electrode disposed on a fuel side of the electrolyte, and an air-side electrode disposed on an air side of the electrolyte.
Tad ARMSTRONG, Justin RAILSBACK
Filed: 5 Nov 21
Utility
Fuel Cell Manifold Having an Embedded Dielectric Layer and Methods of Making Thereof
11 May 23
A manifold plate for a fuel cell stack includes a lower manifold portion, an upper manifold portion, a dielectric layer sandwiched between the lower manifold portion and the upper manifold portion, a bottom inlet hole and a bottom outlet hole formed in a bottom surface of the lower manifold portion, where the bottom inlet hole and the bottom outlet hole extend through the dielectric layer, top outlet holes and top inlet holes formed in opposing sides of a top surface of the upper manifold portion, outlet channels fluidly connecting the top outlet holes to the bottom inlet hole, and inlet channels fluidly connecting the top inlet holes to the bottom outlet hole.
Siddharth PATEL, Karanpal BHANGU
Filed: 4 Nov 22
Utility
Power Management In Fuel Cell System Based Microgrids
11 May 23
Excess DC current generated by a fuel cell stack may be provided to a current source inverter, and an AC current may be output by the current source inverter to a grid side bus.
Prasad PMSVVSV, Beau BAKER, Vignan Reddy BOMMIREDDY
Filed: 8 Nov 22