Bloom Energy Corporation

Tyler Dawson

Harald Herchen

Tad Armstrong

Michael Gasda

David Edmonston

Arne Watson Ballantine

Matthias Gottmann

David Weingaertner

Martin Perry

Chockkalingam Karuppaiah

Ranganathan Gurunathan

Prasad Pmsvvsv

Michael Petrucha

Robert M Hintz

Siddharth Patel

Adil Ashary

Karanpal Bhangu

Victor Silva

Rajan Surve

Thuy Thanh Muhl

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.

Fuel cell column including stress mitigation structures

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.

Fuel cell system with electrical control of fuel utilization and method of operating thereof

A method of operating a fuel cell system includes providing a fuel cell stack containing a plurality of fuel cells and interconnects, and first and second ceramic side baffles located on opposing sides of the fuel cell stack, and applying an electrical potential to an outer surface of at least one of the first and the second ceramic side baffles, such that the electrical potential is equal to or more negative than a lowest potential of any interconnect in the fuel cell stack or any electrically conductive fuel cell stack component.

Fuel cell stack containing external electrode for corrosion mitigation

Growing community of inventors

Sunnyvale, CA, United States of America

Tyler Dawson