Energy Research Corporation

Fuelcell Energy, Inc.

Joel D Doyon

Scott C Blanchet

Mohammad Farooque

Chao-yi Yuh

Lawrence J Novacco

George P Berntsen

Thomas M Lucas

D Lynn Johnson

Chao M Huang

Lawrence M Paetsch

Mark Benedict

Michael Thomas Primerano

Gb Kirby Meacham

A multi-stack assembly receiving fuel from a fuel supply and producing power output for consumption by a load, the assembly comprising a plurality of fuel cell stacks for producing DC power and forming a plurality of fuel cell stack groups, wherein each of the stack groups includes at least one fuel cell stack, a plurality of inverters corresponding to the plurality of fuel cell stack groups, wherein each of the inverters draws a predetermined amount of DC power from a corresponding fuel cell stack group and converts the DC power to AC power; and a controller for controlling each of the inverters to draw the predetermined amount of DC power from the corresponding fuel cell stack group so as to satisfy power requirements of the load.

Fuel cell assembly using multiple fuel cell stacks and control method therefor

A fuel cell corrugated current collector having successive spaced rows of corrugations, with the corrugations in a given row establishing successive peak and valley regions along the given row and the spaced rows of corrugations being adapted so that corresponding peak regions from row-to-row establish through passages for receiving and supporting solid catalyst elements. The spaced rows of corrugations are such that there is a given pitch between successive peak regions. The corrugations in the rows are also such that corresponding peak regions from row-to-row have a finite off-set which is less than 50 percent of the pitch. This establishes a plurality of through passages in the current collector each extending from row-to-row for receiving and supporting the solid catalyst elements. Also, the off-set is based on the catalyst dimensions and is set such that the corrugations engage the catalyst elements.

Corrugated current collector for direct internal reforming fuel cells

A method of forming an electrolyte matrix for a carbonate fuel cell. An .alpha.-LiAlO.sub.2 ceramic is mixed in an aqueous solvent having a citric acid dispersant and deflocculated using a high energy attrition milling. The deflocculated mixture is added to an alcohol/glycerol aqueous binder system to form a slurry which is degassed and then tape cast to form the matrix.

Method of making matrix for carbonate fuel cells

A bipolar separator which is formed from a plate having opposing first and second surfaces which are compatible with fuel gas and an oxidant gas, respectively. The plate is formed with a central area, first and second opposing troughs extending from first and second opposing sides of the central area, and third and fourth opposing troughs extending from third and fourth opposing sides of the central area. In the regions of its third and fourth sides, the central area is bent over and around so that the third and fourth troughs face and are adjacent to the central area. The first surface of the separator defines the extent of a first surface of the central area and the extents of the inner surfaces of the troughs of the separator. Similarly, the second surface of the separator defines the extents of a second opposing surface of central area and the extents of the outer surfaces of the troughs.

Bipolar separator

A nickel anode electrode component comprised of a support member and a porous coherent member formed from a non-sintered nickel alloy constituent. The support member and porous coherent member are laminated together and the nickel anode electrode component is assembled within a fuel cell and formed into an anode electrode in situ within the cell.

Fuel cell anode and fuel cell

An improved method of forming a nickel plaque wherein an assemblage of particles of a nickel alloy are oxidized and sintered in a preselected atmosphere such that the alloying material is exclusively substantially internally oxidized and the resultant product sintered to provide a sintered porous plaque containing nickel metal and oxidized alloying material.

Growing community of inventors

Bantam, CT, United States of America

Joel D Doyon