Ford Motor Company Limited

Daimler Ag

Ballard Power Systems Corporation

Ryan N Mackie

Simon Farrington

Zuomin Dong

Martin Perry

Dongming Lu

Walter R Merida Donis

Ken W Kratschmar

Rong Zheng

Gaofeng Gary Wang

Michael E Pastula

A fluid flow field plate for an electrochemical fuel cell that includes a planar body having a first surface, a second surface. More than one header opening extends between the first surface and the second surface to define a flowpath. At least one open flow field channel with an inlet port and an outlet port is provided in the first surface. Each outlet port is in fluid communication with one of the one header openings. At least one of the outlet port or the inlet port has a baffle extending into the flow path.

Unit cell header flow enhancement

In solid polymer electrolyte fuel cells, a laminar flow of a dilute oxidant stream, for example air, may be disrupted by incorporating obstacles in the channels of an oxidant flow field. The laminar flow is changed to turbulent flow thereby enhancing the flow of oxygen to the membrane electrode assembly in the fuel cell and improving fuel cell performance.

Oxidant flow field for solid polymer electrolyte fuel cell

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Vancouver, Canada

Ryan N Mackie