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BE Bloom Energy

APP
Utility
Methods for Manufacturing Fuel Cell Interconnects Using 3D Printing
7 Oct 21
A method of forming a fuel cell interconnect includes depositing a Cr alloy powder, sintering the Cr alloy powder, and repeating the depositing and the sintering to form the fuel cell interconnect.
Avinash VERMA, Chockkalingam KARUPPAIAH, Harald HERCHEN, Cheng-Yu LIN, Martin PERRY
Filed: 2 Apr 21
GRANT
Utility
Method of providing a functionally graded composite layer for coefficient of thermal expansion compliance in solid oxide fuel cell stacks and system components
28 Sep 21
A buffer layer between an interconnect and an electrolyte of a solid oxide fuel cell, the buffer layer having a gradient in coefficient of thermal expansion (CTE), wherein the buffer layer minimizes electrolyte damage due to a difference in CTE between the interconnect and electrolyte.
Mosul K. Premkumar, Vijay Radhakrishnan, Rahul Kulkarni, Padiadpu Shankara Anantha
Filed: 17 Oct 18
GRANT
Utility
Power system integrated with dual power electrical load
21 Sep 21
A system and method of provided power to one or more electrical loads of an electrical load module is provided.
Arne Ballantine, Ranganathan Gurunathan, Rajesh Gopinath, Carl Cottuli
Filed: 4 Apr 18
APP
Utility
Interconnect for Fuel Cell Stack
2 Sep 21
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
APP
Utility
Fault Tolerant Electrical Architecture for Fuel Cell Systems
19 Aug 21
During a steady-state mode of operating a fuel cell system, a system power is generated by fuel cells and is provided via a steady-state bus to a first BOP load, to a second BOP load, and to a power grid via a transformer and via at least one of a bi-directional first inverter or a bi-directional second inverter.
Prasad PMSVVSV, Craig METCHO, Beau BAKER, Amit BHATTACHARJEE
Filed: 16 Feb 21
APP
Utility
Fuel Cell System with Electrical Control of Fuel Utilization and Method of Operating Thereof
19 Aug 21
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
APP
Utility
Fuel Cell Stack Including Witness Marks and Inspection Method Thereof
19 Aug 21
A fuel cell stack and inspection method, the fuel cell stack including fuel cells disposed in a stack and interconnects disposed between the fuel cells.
Raphael QUIAZON, Arne BALLANTINE
Filed: 30 Apr 21
GRANT
Utility
Grid islanded fuel cell installation for data center load
17 Aug 21
Various embodiments manage a fuel cell IT grid system to maintain fuel cell temperatures above a threshold temperature.
Carl Cottuli
Filed: 2 Jan 19
GRANT
Utility
Fuel cell stack including witness marks and inspection method thereof
10 Aug 21
A fuel cell stack and inspection method, the fuel cell stack including fuel cells disposed in a stack and interconnects disposed between the fuel cells.
Raphael Quiazon, Arne Ballantine
Filed: 30 Nov 18
APP
Utility
Metal-dielectric Conduit Assemblies and Methods of Making Thereof
5 Aug 21
A fuel cell system conduit assembly includes a dielectric tube having a first end and a second end, a metallic first flange press-fit to the first end of the dielectric tube, a metallic second flange press-fit to the second end of the dielectric tube, a first snap ring disposed between the first flange and the dielectric tube, and a second snap ring disposed between the second flange and the dielectric tube.
James HUYNH, Michael PETRUCHA
Filed: 2 Feb 21
GRANT
Utility
Fuel cell systems containing chromium filters
3 Aug 21
A fuel cell system includes fuel cells disposed in a stack and separated by interconnects, a cathode recuperator configured to heat air provided to the stack using reaction exhaust provided from the stack, a steam generator configured to receive the reaction exhaust from the cathode recuperator and generate steam using the reaction exhaust, a hot box housing the stack, cathode recuperator, and steam generator, and a Cr filter including a porous metal and configured to remove Cr vapor species from the reaction exhaust.
Adil Ashary, Martin Perry, David Weingaertner, Richard Dole, Ivan Hartana, Emad El Batawi
Filed: 11 Oct 19
APP
Utility
Shippable Battery Module and Method
22 Jul 21
A method of transporting a battery module includes transporting the battery module containing at least one battery and a backplane disposed in a cabinet to an operating site such that the at least one battery is electrically isolated from the backplane during the transporting, installing the battery module at the operating site, and electrically connecting the at least one battery to the backplane after the transporting.
Arne BALLANTINE, Jessica MAHLER, Ross PARKER, Prasad PMSVVSV, Samuel JUDAY
Filed: 17 Jan 20
GRANT
Utility
Solid oxide fuel cell system configured for higher hydrocarbon fuels
13 Jul 21
A fuel cell system and method of operating, the system including a fuel cell stack configured to generate electricity and anode exhaust, a mixer configured to mix fuel received from a fuel source with steam and the anode exhaust, a low-temperature pre-reformer configured to at least partially reform fuel received from the mixer at a temperature of less than about 420° C., and an anode recuperator configured to heat fuel received from the low-temperature pre-reformer using the anode exhaust and to provide the fuel to the fuel cell stack.
David Weingaertner
Filed: 28 Nov 18
GRANT
Utility
Stackable fuel cell generator arrangement with common inlet and common outlet plenums
22 Jun 21
A power module system includes a plurality of vertically stacked power modules.
Arne Ballantine, Jessica Mahler, Ross Parker, Gilbert Richards, Barry Sharpe, Sean Dunn, Santi Lara, John O'Toole, David Trevisan, Carl Cottuli, David Weingaertner, Daniel Baynes
Filed: 14 Dec 18
GRANT
Utility
Method of equalizing the pressure drop of fuel cell columns
8 Jun 21
A fuel cell system includes a plurality of fuel cell stacks or columns, each fuel cell stack or column containing a plurality of fuel cells, and at least one pressure drop tool located in a fuel path of at least one first fuel cell stack or column but not in a fuel path of at least one second fuel cell stack or column.
Natarajan Ramanan, Martin Perry, Yashas Keshav, Michael Petrucha, Nilanjana Basu
Filed: 28 Nov 18
APP
Utility
Microgrid with Power Equalizer Bus and Method of Operating Same
20 May 21
Various embodiments include methods and systems for implementing managing a microgrid system.
Prasad PMSVVSV, Ranganathan GURUNATHAN
Filed: 16 Nov 20
GRANT
Utility
Method and apparatus for handling controller area network (CAN) messages in a fuel cell system
18 May 21
Systems, methods, and devices of the various embodiments may provide for the selective enablement and disablement of tags, such as control/process tags, in controller area network (CAN) networks, such as power generation systems, including fuel cell systems connected by a CAN bus.
Jayanth Moodliar, Ali Zargari, Aditi Akula
Filed: 28 Jun 17
GRANT
Utility
Cerium and cerium oxide containing alloys, fuel cell system balance of plant components made therefrom and method of making thereof
11 May 21
A method of making a metal alloy includes providing a molten metal alloy containing chromium, cerium and at least one of iron and nickel and providing an oxidizing gas and a reducing gas into the molten metal alloy to at least partially preferentially oxidize the cerium to ceria.
Adil A. Ashary
Filed: 21 Nov 17
APP
Utility
Compliant Contact Material for Fuel Cells and Method of Making Thereof
6 May 21
A method of making a fuel cell stack includes applying an electrically conductive, compliant contact print ink containing an electrically conductive material, a plasticizer, a solvent, and a binder to at least one of a surface of an electrode of a fuel cell or a surface of an interconnect, and placing the fuel cell and the interconnect in the fuel cell stack such that the compliant contact print ink is located between the electrode of the fuel cell and the interconnect.
Andres LEMING
Filed: 13 Jan 21
GRANT
Utility
System and method for impedance testing DC power sources
27 Apr 21
A method includes selecting a test waveform to inject from a first DC converter to at least one first DC power source other than a fuel cell, determining a first resulting ripple that will be generated in response to injecting the test waveform onto the battery, determining at least one offset waveform to inject from at least one second DC converter to at least one second DC power source to generate one or more second ripples which cancel the first resulting ripple, injecting the test waveform from the first DC converter to the at least one first DC power source, injecting the at least one offset waveform from the at least one second DC converter to the at least one second DC power source, and determining a characteristic of the first DC power source based at least in part on the impedance response of the first DC power source.
Arne Ballantine, Ranganathan Gurunathan, Anilkumar Vishnuvarjula, Chockkalingam Karuppaiah
Filed: 27 Dec 18
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