Bloom Energy Corporation

Ohmium International, Inc.

Plug Power Inc.

Deeya Energy, Inc.

The Ohio State University

Indian Institute of Technology Madras

Infinity Fuel Cell and Hydrogen, Inc.

Stackpole International Powder Metal, Ulc

Chockkalingam Karuppaiah

Arne Watson Ballantine

Michael Gasda

Matthias Gottmann

Harald Herchen

Martin Perry

Kirsten Burpee

Daniel J Darga

Peter Light

Albert Esser

James F McElroy

David Weingaertner

Tad Armstrong

Swaminathan Venkataraman

Ranganathan Gurunathan

Jayakumar Krishnadass

Rasool Aghatehrani

Saroj Kumar Sahu

Majid Keshavarz

Stephen Couse

John Fisher

Ramesh Srinivasan

Srikanth Ranganathan

Andy Ta

Suresh Kumar Surapalan Nair

Ge Zu

Ravi Oswal

Kyle Kekelis

Anil Kumar Adapa

Anilkumar Vishnuvarjula

Greg Young

Prathap Haridoss

Arne Ballantine

Gokul Venugopalan

Jason Hixson

Vasanthan Mani

Emad El Batawi

James Nguyen

Prasad Pmsvvsv

William F Smith

Cheng-Yu Lin

Rohith Shivanath

Darren Bawden Hickey

Ali Firouzi

W S Winston Ho

Gopalakrishnan R Parakulam

John Finn

Ryan Hallum

Avinash Verma

Eric George Budesheim

Vijay Radhakrishnan

Shraddesh Malviya

Shivanand Majagi

Chris Comi

Tyler Dawson

Jeffrey R Boyer

Yaobang Wu

Susy Varughese

Brandon Dawson

Brendan Ayre

Veluchamy Rasu

Franklin Ballantine

Arne Ballatine

Glen Benson

Dien Nguyen

Muralidhar Venkatraman

Celeste Mueller

Roby Worster

Frederick Paul Freeland, Jr

Kadhiresan Ambalavanan

Rajan Surve

Elamathi Swaminathan

Rahul Shevate

Balasubramanian Lakshmanan

Abhijit Deshpande

A system for hydrogen generation includes at least one cabinet defining a first volume, a second volume, and a third volume, where the first volume, the second volume and the third volume are fluidically isolated from each other, a water circuit located in the first volume, an electrochemical module including an electrolyzer electrochemical stack located in the second volume, a hydrogen circuit located in the third volume, at least one first fluid connector fluidly connecting the water circuit and the electrolyzer electrochemical stack, and at least one second fluid connector fluidly connecting the electrolyzer electrochemical stack and the hydrogen circuit.

Electrochemical devices, modules, and systems for hydrogen generation and methods of operating thereof

A system and method of power management for a power generation system is disclosed. A method of power management for a hydrogen generation system including one or more electrochemical stacks, the one or more electrochemical stacks receiving power from an electrical grid including at least one power source, includes: receiving a frequency or voltage reference value for the hydrogen generation system; continually monitoring a frequency or voltage of the electrical grid; and varying a load of the hydrogen generation system in response to the frequency or voltage of the electrical grid differing from the frequency or voltage reference value to restore the frequency or voltage of the electrical grid to the frequency or voltage reference value.

Frequency droop to coordinate hydrogen production

A porous titanium sheet configured to function as an anode side gas diffusion layer of a proton exchange membrane (PEM) electrolyzer is formed by a powder technique, such as tape casting or powder metallurgy.

Porous electrolyzer gas diffusion layer and method of making thereof

The present disclosure relates to circuits for connecting components of a hydrogen plant to a power grid to power the components in an efficient manner. In one implementation, power-side alternate current (AC) to direct current (DC) converters may be connected to a source power grid without the need for an isolation transformer by providing separate buses between the power-side AC-DC converters and load-side DC-DC converters instead of a shared DC bus between the converters. Other implementations for connecting components of a hydrogen plant to a power grid may include an adjustable transformer, such as a tappable transformer or an autotransformer, to connect any number of auxiliary loads of the plant to the power grid. The adjustable transformer may provide for various types of auxiliary load devices to connect to the power provided by the transformer at the same time, including both three-phase devices and one-phase devices.

Systems and circuits for connecting components of a hydrogen plant to a power source

A system for hydrogen recovery includes a dryer having an inlet that may be fluidly connected to a hydrogen outlet of a hydrogen generator, a hydrogen using device having an inlet fluidly connected to a dry hydrogen outlet of the dryer, and one or more conduits fluidly connecting a wet hydrogen outlet from the dryer and an impure hydrogen exhaust outlet of the hydrogen using device to the inlet of the dryer.

Systems and methods for hydrogen recovery

Hybrid electrocatalyst layers for use in an electrochemical cell and processes for making the same are described. The hybrid electrocatalyst layers include at least one ion-conducting layer and at least one nonionic conductive catalyst layer. The processes for making the hybrid electrocatalyst layers include a sintering step, which provides greater durability of the hybrid electrocatalyst layers.

Hybrid electrocatalyst layers for membrane-based electrochemical devices and processes for making the same

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.

Solid oxide fuel cell system with hydrogen pumping cell with carbon monoxide tolerant anodes and integrated shift reactor

An anode gas diffusion layer for a proton exchange membrane (PEM) electrolyzer includes a porous stainless steel sheet formed by a powder metallurgical technique.

Methods of manufacturing a gas diffusion layer and an electrochemical cell incorporating the same

Provided herein are systems and methods for generating gas and delivering the gas at multiple output pressures. The system includes a plurality of gas generators and a plurality of applications, each application having a different header pressure. A plurality of header valves directs the gas flow to the plurality of applications such that energy loss is minimized.

Multiple output header

An aircraft electrical power supply system includes a fuel cell auxiliary power unit (APU) that supplies auxiliary electrical power to an aircraft, a fuel cell power plant that supplies primary electrical power to the aircraft, and a hydrogen storage unit that supplies hydrogen to the fuel cell APU and the fuel cell power plant.

Aircraft electrical power supply system and method of supplying electrical power in an aircraft

A method includes providing raw water into a first filter assembly to remove solids from the raw water to form a filtrate, providing the filtrate from the first filter assembly into a second filter assembly to electrochemically remove ionics from the filtrate to form purified water, and providing the purified water to an electrolyzer to generate hydrogen by electrolyzing the purified water.

Systems and methods of water treatment for hydrogen production

The present disclosure provides composite ion exchange membranes and methods of making the same. The composite ion exchange membranes of the present disclosure include a first layer comprising a first ion-conducting membrane; a second layer comprising a gas-blocking membrane; and a third layer comprising a second ion-conducting membrane.

Composite ion exchange membranes and methods of making the same

A system for reducing ore includes a hydrogen supply unit configured to supply hydrogen, a furnace configured to reduce the ore using the supplied hydrogen, and a hydrogen recovery unit configured to recover hydrogen from an exhaust gas that is exhausted from the furnace.

System and method for reducing ore using hydrogen as a reducing agent

Growing community of inventors

Cupertino, CA, United States of America

Chockkalingam Karuppaiah