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Bloom Energy Corporation patents


Recent patent applications related to Bloom Energy Corporation. Bloom Energy Corporation is listed as an Agent/Assignee. Note: Bloom Energy Corporation may have other listings under different names/spellings. We're not affiliated with Bloom Energy Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "B" | Bloom Energy Corporation-related inventors


Method of measurement and estimation of the coefficient of thermal expansion in components

Methods and systems for measuring and/or estimating a coefficient of thermal expansion (cte) of a component of a fuel cell system. A cte measurement technique includes securing a measurement member over a surface of the component via a seal having a melting point, heating the seal above its melting point of the seal, cooling the component, measurement member and seal to a second temperature below the melting point of the seal, and determining the cte of the component based on the change in the span of the measurement member after cooling. ... Bloom Energy Corporation

Sofc hot box components

Various hot box fuel cell system components are provided, such as heat exchangers, steam generator and other components.. . ... Bloom Energy Corporation

Fuel cell interconnect with reduced voltage degradation over time

A method of making an interconnect for a solid oxide fuel cell stack includes providing a chromium alloy interconnect and providing a nickel mesh in contact with a fuel side of the interconnect. Formation of a chromium oxide layer is reduced or avoided in locations between the nickel mesh and the fuel side of the interconnect. ... Bloom Energy Corporation

Sofc system and method which maintain a reducing anode environment

A solid oxide fuel cell system and method including a hotbox containing a fuel cell stack, a fuel supply configured to provide a fuel to the fuel cell stack, and a hydrogen supply thermally integrated with the hotbox. The hydrogen supply is configured to produce hydrogen during or shortly after the sofc system is shutdown using residual heat of the hot box, and to provide the hydrogen to the sofc stack such that an anode reducing environment is maintained in the stack.. ... Bloom Energy Corporation

Systems and methods for suppressing chromium poisoning in fuel cells

A fuel cell assembly includes a fuel cell stack including a plurality of fuel cells, an incoming oxidizing gas flow path configured to deliver an oxidizing gas to the plurality of fuel cells, and a chromium-getter material located in the incoming oxidizing flow path. A fuel cell includes an electrolyte, a cathode electrode on a first side of the electrolyte, an anode electrode on a second side of the electrolyte, and a chromium-getter material on the cathode electrode.. ... Bloom Energy Corporation

Corrosion resistant barrier layer for a solid oxide fuel cell stack and method of making thereof

A method of forming diffusion barrier layer includes providing an interconnect for a fuel cell stack, forming a glass barrier precursor layer over a mn and/or co containing electrically conductive contact layer on the interconnect, and heating the barrier precursor layer to precipitate crystals in the barrier precursor layer to convert the barrier precursor layer to a glass ceramic barrier layer.. . ... Bloom Energy Corporation

Anode with high redox stability

A solid oxide fuel cell (sofc) includes a cathode electrode, a solid oxide electrolyte and an anode electrode containing a first portion having a cermet containing a nonzero volume percent of a nickel containing phase and a nonzero volume percent of a ceramic phase and a second portion having a cermet containing a nonzero volume percent of a nickel containing phase and a nonzero volume percent of a ceramic phase, such that the first portion is located between the electrolyte and the second portion. The sofc is an electrolyte-supported sofc and the first portion of the anode electrode contains a lower ratio of the nickel containing phase to the ceramic phase than the second portion of the anode electrode. ... Bloom Energy Corporation

Anode with remarkable stability under conditions of extreme fuel starvation

A solid oxide fuel cell (sofc) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode having a first region located adjacent to a fuel inlet and a second region located adjacent to a fuel outlet. The anode electrode includes a cermet having a nickel containing phase and a ceramic phase. ... Bloom Energy Corporation

Fuel cell system with variable auxiliary bus voltage and method of operating thereof

A method of operating a fuel cell system which includes a plurality of fuel cells and a plurality of auxiliary components located in at least one cabinet, includes monitoring, by a control unit, a parameter of the fuel cell system, determining whether the parameter has violated a threshold, and varying an auxiliary bus voltage provided to the plurality of auxiliary components connected to a common auxiliary bus by a first amount in response to determining that the parameter has violated the threshold.. . ... Bloom Energy Corporation

Sorbent bed assembly, fuel cell system including same, and systems and devices for loading and transporting same

A sorbent bed assembly of a fuel cell system, including a first sorbent bed, a second sorbent bed and at least one third sorbent bed, the second sorbent bed disposed between the first sorbent bed and the at least one third sorbent bed, a cover plate on the plurality of sorbent beds and configured to connect the sorbent beds to one another, a fuel inlet connector on the cover plate and configured to receive a fuel, a manifold having a first fluid conduit configured to transport fuel between the first sorbent bed and at least one third sorbent bed, and a second fluid conduit configured to transport fuel between at least one third sorbent bed and the second sorbent bed, and a fuel outlet connector on the cover plate and configured to receive fuel that has passed through each of the sorbent beds.. . ... Bloom Energy Corporation

Fuel cell system for information technology loads

A fuel cell system having a power module including at least one fuel cell segment, an input output module including at least one inverter, a rectifier, and an electric distribution module having at least a first electrical connector and a second electrical connector. The at least one fuel cell segment may be electrically connected to the at least one inverter and may be electrically connected to an information technology (it) load via a split bus. ... Bloom Energy Corporation

Systems and methods for recycling fuel cell stack components

System and methods for refurbishing fuel cell stack components, the methods including singulating the stack using a splitting apparatus or a liquid nitrogen bath. Fuel cell debris may be removed from interconnects of the fuel cell stack using laser heating, flame heating, a die, sonication, a nubbed roller, grit blasting, and/or a high pressure fluid.. ... Bloom Energy Corporation

Method of refining of scandium oxide from concentrates using solvent extraction

A method of selectively removing impurities from a scandium-containing feed solution includes contacting an aqueous scandium-containing solution with an organic solvent stream containing an extractant, thereby forming a loaded organic solvent stream containing the impurity or impurities while leaving the scandium in the raffinate. The aqueous stream containing the scandium is washed, diluted and has inorganic salts added before being contacted with a second organic solvent stream to extract the scandium selectively, and followed by stripping the scandium from the scandium-containing loaded organic extractant stream by adding oxalic acid to the loaded organic extractant stream to form scandium oxalate.. ... Bloom Energy Corporation

Anode splitter plate and methods for making the same

Various embodiments of a reactant feed and return assembly, such as an anode splitter plate (asp), are provided for facilitating reactant feed and exhaust flow in a solid oxide fuel cell (sofc) stack system. Embodiments include a reactant feed and return assembly including at least a first portion formed of a chromium-based alloy, such as a chromium-iron alloy, having a similar coefficient of thermal expansion as other sofc components and may therefore reduce internal stress in an sofc stack. ... Bloom Energy Corporation

07/13/17 / #20170200964

Heterogeneous ceramic composite sofc electrolyte

A solid oxide fuel cell (sofc) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode. The electrolyte includes yttria stabilized zirconia and scandia stabilized zirconia, such as scandia ceria stabilized zirconia.. ... Bloom Energy Corporation

07/06/17 / #20170190608

Seal compositions, methods, and structures for planar solid oxide fuel cells

A seal composition includes a first alkaline earth metal oxide, a second alkaline earth metal oxide which is different from the first alkaline earth metal oxide, aluminum oxide, and silica in an amount such that molar percent of silica in the composition is at least five molar percent greater than two times a combined molar percent of the first alkaline earth metal oxide and the second alkaline earth metal oxide. The composition is substantially free of phosphorus oxide. ... Bloom Energy Corporation

06/15/17 / #20170167639

Carbon dioxide shielded natural gas line and method of using thereof

A natural gas line comprises a concentric pipe having an inner natural gas pipe and an outer carbon dioxide pipe surrounding the inner pipe. Carbon dioxide in the outer pipe comprises a shield which prevents or decreases natural gas leakage to the atmosphere. ... Bloom Energy Corporation

04/27/17 / #20170117567

Doped scandia stabilized zirconia electrolyte compositions

A solid oxide fuel cell (sofc) electrolyte composition includes zirconia stabilized with scandia, and at least one of magnesia, zinc oxide, indium oxide, and gallium oxide, and optionally ceria in addition to the oxides above.. . ... Bloom Energy Corporation

04/20/17 / #20170110746

Methods and systems for detecting leaks in a fuel cell stack

Systems and methods for testing a fuel cell stack include a vacuum source, a test head including at least one isolated vacuum plenum configured to be positioned in fluid communication with a first portion of the fuel cell stack, the isolated vacuum plenum in fluid communication with the vacuum source, and a detector in fluid communication with the at least one isolated vacuum plenum for detecting the presence of a particular constituent of a fluid provided in a second portion of the fuel cell stack, where the second portion of the fuel cell stack is separated from the first portion of the fuel cell stack by at least one of an electrolyte and a fuel cell seal.. . ... Bloom Energy Corporation

04/13/17 / #20170104233

Fuel cell stack column including stress-relief components

A fuel cell column includes termination plates, fuel cell stacks disposed between the termination plates, and fuel manifolds disposed between the fuel cell stacks. The fuel cell stacks include fuel cells, interconnects disposed between the fuel cells, and end plates disposed on opposing ends of the fuel cell stacks. ... Bloom Energy Corporation

04/06/17 / #20170098842

Sorbent bed assembly and fuel cell system including same

A sorbent bed assembly, a fuel cell system including the sorbent bed assembly, and methods of using the same. The sorbent bed assembly includes sorbent beds disposed in a stack, such that the sorbent beds extend lengthwise in a non-vertical direction, and conduits configured to fluidly connect the sorbent beds. ... Bloom Energy Corporation

03/16/17 / #20170077535

Electrochemical impedance spectroscopy ("eis") analyzer and method of using thereof

Systems, methods, and devices of the various embodiments provide a hardware and software architecture enabling electrochemical impedance spectroscopy (“eis”) to be performed on multiple electrochemical devices, such as fuel cells, at the same time without human interaction with the electrochemical devices and to use eis to dynamically monitor the performance of a fuel cell system. Embodiment methods may include determining an impedance of a set of fuel cells using electrochemical impedance spectroscopy, determining an ohmic polarization of the set of fuel cells from the impedance, determining a concentration polarization of the set of fuel cells from the impedance, comparing the ohmic polarization of the set of fuel cells to a first threshold, comparing the concentration polarization of the set of fuel cells to a second threshold, and initiating a corrective action when the ohmic polarization is above the first threshold or when the concentration polarization is below the second threshold.. ... Bloom Energy Corporation

03/09/17 / #20170069923

Fuel cell ventilation systems

A roof cap assembly for a fuel cell system includes a housing, and a cover assembly disposed on the housing and configured to move between a first position and a second position. The cover assembly includes a cover comprising a first opening and a second opening, and a door connected to the cover and configured to selectively open and close the second opening. ... Bloom Energy Corporation

02/23/17 / #20170054159

Coatings for sofc metallic interconnects

Various methods of treating a chromium iron interconnect for a solid oxide fuel cell stack and coating the interconnect with a ceramic layer are provided.. . ... Bloom Energy Corporation

02/23/17 / #20170054157

Pre-formed powder delivery to powder press machine

Methods for fabricating an interconnect for a fuel cell system that include forming a metal powder into a preform structure, positioning the preform structure in a die cavity of a press apparatus, and compressing the preform structure in the press apparatus to form the interconnect. Further embodiments include use of thin inserts in the die cavity to provide reduced permeability and/or including filler material in the die cavity.. ... Bloom Energy Corporation

01/12/17 / #20170012309

Real-time monitoring and automated intervention platform for long term operability of fuel cells

Methods, apparatuses, and systems for real-time monitoring and automated intervention of a power generation. Embodiments may include receiving operating data from components of the power generation system. ... Bloom Energy Corporation

01/05/17 / #20170005480

Intergrated fuel cell and energy storage systems and method of operating thereof

An electrical power system, including a fuel cell system having a plurality of fuel cell segments and an energy storage system electrically coupled to the fuel cell system. The energy storage system including a plurality of energy storage system technologies, an energy storage system direct current (dc) bus configured to electrically connect the plurality of energy storage system technologies to the fuel cell system, and an energy storage system technologies management system configured manage impedance of the energy storage system and electric coupling of the energy storage system and the fuel cell system.. ... Bloom Energy Corporation








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