Elcogen Oy

Flexitallic Investments Incorporated

Olli Himanen

Matti Noponen

Jari Pennanen

John Robert Hoyes

Jari Kiviaho

Markus Rautanen

John Hoyes

An input reactant flow guiding arrangement for a solid oxide electrolyzer cell includes a flow distribution area and a flow outlet area, each on the flow field plate. The arrangement guides input reactant flow to the flow distribution area from sides of the electrolyzer cell, and turns at least one of the input reactant feed flow and the input reactant outlet flow to equalize flow distribution on an electrolyte element. A reactant flow adjusting structure with flow restriction orifices has at least one geometrical shape for adjusting homogenously at least one of the input reactant feed flow and input reactant outlet flow over an electrolyte element based on a flow functional effect of the at least one geometrical shape of the flow adjusting structure, the flow adjusting structure having flow restriction orifices of definable height and a gasket structure having at least partly an elliptical shape.

Method and arrangement for distributing reactants into an electrolyzer cell

A fuel flow guiding arrangement is disclosed for a solid oxide fuel cell wherein the arrangement is configured for guiding oxygen rich side gas to and from an electrolyte element. The arrangement includes a flow field plate for each cell to arrange flows in the cell, a flow distribution area on the flow field plate, and a flow outlet area on the flow field plate. The arrangement can guide fuel feed flow to the flow distribution area from sides of a fuel cell, and can turn at least one of the fuel feed flow on the flow distribution area and fuel outlet flow on the flow outlet area to equalize flow distribution on the electrolyte element. A fuel flow adjusting structure can essentially homogenously adjust at least one of the fuel feed flow and fuel outlet flow over the electrolyte element.

Method and arrangement for distributing reactants into a fuel cell or into an electrolyzer cell

A gasket for sealing two mating surfaces of a fuel cell is described. The gasket has a core layer comprising exfoliated vermiculite. The core layer is interposed between a first and second coating layer, the said coating layers each comprising glass, glass-ceramic and/or ceramic material. Methods for producing gaskets according to the invention are also described. A solid oxide cell or a solid oxide cell component comprising one or more of the gaskets; use of the gasket to improve sealing properties in a solid oxide cell; and a method of producing a solid oxide cell or of sealing a solid oxide cell comprising incorporating at least one of the gaskets into the solid oxide cell are also defined.

Gasket for fuel cells

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Espoo, Finland

Olli Himanen