Bloom Energy Corporation

Vijay Radhakrishnan

Padiadpu Shankara Anantha

Tad Armstrong

Emad El Batawi

Michael Gasda

Manoj Pillai

Abhishek Dudhmande

Amit Nawathe

Matthias Gottmann

Swaminathan Venkataraman

Chockkalingam Karuppaiah

Jonathan Scholl

Karthick Sudhan

Mohamed Sharif

Pradhiba Mohan

Rakesh Kandiboina

Karthick Sudhan Shanmugam

Mosul K Premkumar

Rahul Kulkarni

A fuel cell system performance recovery method includes applying a DC current load pulse waveform to one or more of the fuel cells for a recovery period sufficient to desorb a contaminant from the one or more fuel cells.

Systems and methods of restoring fuel cell system performance

A fuel cell system and method, the system including power generating fuel cells disposed in a stack, each power generating fuel cell including an anode, a cathode, and an electrolyte, a sensing fuel cell including an anode, a cathode, and an electrolyte, and a fuel processor configured to purify a fuel provided to the power generating fuel cells and the sensing fuel cell. The anode of the sensing fuel cell is thinner than the anodes of the power generating fuel cells.

Fuel cell systems and methods for detecting fuel contaminants and hydrocarbon content

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.

Method of providing a functionally graded composite layer for coefficient of thermal expansion compliance in solid oxide fuel cell stacks and system components

A solid oxide fuel cell system and method, the system including a hotbox containing a fuel cell stack, a fuel supply configured to provide a fuel to the fuel cell stack, and a blower configured to provide air to the fuel cell stack. During a shutdown operation, the blower is configured to cool the fuel cell stack at a rate ranging from about 0.75&#xb0; C./min to about 3.0&#xb0; C./min, until the temperature of the fuel cell stack is reduced to a temperature at which oxidation of anodes of the fuel cell stack is substantially prevented.

SOFC system and method to decrease anode oxidation

A solid oxide fuel cell, system including the same, and method of using the same, the fuel cell including an electrolyte disposed between an anode and a cathode. The anode includes a first layer including a metallic phase and a ceramic phase, and a second layer including a metallic phase. The metallic phase of the second layer includes a metal catalyst and a dopant selected from Al, Ca, Ce, Cr, Fe, Mg, Mn, Nb, Pr, Ti, V, W, or Zr, any oxide thereof, or any combination thereof. The second layer may also include a ceramic phase including ytterbia-ceria-scandia-stabilized zirconia (YCSSZ).

SOFC including redox-tolerant anode electrode and system including the same

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. The first portion of the anode electrode has a porosity of 5-30 volume percent and the second portion of the anode electrode has a porosity of 31-60 volume percent.

Anode with high redox stability

A method of operating a solid oxide fuel cell (SOFC) system which contains a plurality of SOFCs having cermet anode electrodes includes operating the SOFC system above 760&#xb0; C. to generate electricity and intentionally oxidizing the cermet anode electrodes at a temperature of at least 760&#xb0; C. when the SOFC system stops operating to generate electricity.

Growing community of inventors

Mumbai, India

Vijay Radhakrishnan