Ford Global Technolgoies, LLC

Zijie Lu

Jun Yang

Chunchuan Xu

Kerrie Kathleen Gath

James Waldecker

Shinichi Hirano

Daniel Edward Wilkosz

Mark S Sulek

Michael Allen DeBolt

Richard E Soltis

Andrew Robert Drews

Venkataramani Anandan

William Frederick Sanderson

Craig Michael Mathie

Bryan William Boudouris

Mark John Jagner

Brian Gillespey

Patrick Pietrasz

Xiaojiang Wang

Siddhartha Akkiraju

Donald Paul Alessi

A fuel cell includes a plurality of unit cells disposed in a stack. Each unit cell includes a membrane electrode assembly (MEA) having an anode and a cathode and a bipolar plate having a cathode side defining a recessed pocket in fluid communication with an air port, an anode side, and coolant channels between the cathode and anode sides. The bipolar plate is disposed against the MEA such that the cathode is disposed over the pocket. A flow guide is disposed in the pocket with a front side facing the MEA and a back side facing a bottom of the pocket. The flow guide has a plurality of embossments.

Bipolar plate for fuel cell

A bipolar plate for a fuel cell includes an anode plate and a cathode plate. The anode plate has hydrogen flow channels on a first side of the anode plate and coolant channels on a second side of the anode plate. The cathode plate has a first side disposed against the second side of the anode plate to cover the coolant channels and has a second side defining a recessed pocket configured to receive a stream of air. A flow guide is disposed in the pocket such that an inlet manifold is formed along a first edge of the flow guide and an outlet manifold is formed along a second edge of the flow guide. The flow guide defines channels extending from the inlet manifold to the outlet manifold. A plurality of openings is defined by through the flow guide.

A single-ion polymer electrolyte has formula (I): R&#x2014;[SON(M)SO&#x2014;X&#x2014;]&#x2014;SOLi (I). In formula (I), X may be an electron withdrawing group such as an aromatic group, substituted aromatic group, &#x2014;(CF)&#x2014;, &#x2014;(CCl)&#x2014;, &#x2014;CH&#x2014;, or &#x2014;CH(NO)&#x2014;. R may be a fluorinated alkyl, LiSO(CF)&#x2014;, or an aromatic group, and M may be a metal cation. For the single-ion polymer electrolyte with formula (I), m may be an integer from 2 to 2000, and n may be an integer from 1 to 4.

Single-ion polymer electrolyte molecular design

A battery electrode material includes a composition of (A) a charge-conducting radical polymer, (B) poly[poly(ethylene oxide) methyl ether methacrylate] (PPEGMA); and (A) a lithium salt, the composition being a mixed ionic and electronic conductor with ionic conductivity at room temperature of at least about 10S/cm and electronic conductivity of at least about 10S/cm.

Polymer blends having mixed electronic and ionic conductive properties

A fuel cell oxidation reduction reaction catalyst comprising a carbon substrate, an amorphous metal oxide intermediate layer on the substrate, and an intertwined matrix of platinum and elemental niobium arranged to form a surface metal layer covering the intermediate layer such that upon oxidation, the niobium binds with oxygen resulting in strengthened bonds between the platinum and the intermediate layer.

Fuel cell oxidation reduction reaction catalyst

A fuel cell oxidation reduction reaction catalyst includes a carbon powder substrate, an amorphous conductive metal oxide intermediate layer on the substrate, and a plurality of chained electrocatalyst particle strands bound to the layer to form an interconnected network film thereon having a thickness of up to 10 atom monolayers.

A fuel cell assembly includes a fuel cell arrangement having first and second plates sandwiching a membrane electrode assembly. The arrangement defines first and second header regions that each include supply and return headers. The first plate defines coolant channels that extend between the header regions and connect to the return header in the first region. The second plate defines coolant channels that extend between the header regions and connect to the supply header in the first region.

Fuel cell assembly with cooling system

An electrode for a fuel cell includes a catalyst layer adjacent to a gas diffusion layer and a proton exchange membrane, and ionomer-free active metal-loaded carbon nanostructures and active metal-free ionomer-coated carbon nanostructures arranged to define pores therebetween to facilitate transport of reactant gases and product water in the fuel cell.

Nanostructured PEMFC electrode

In at least one embodiment, a fuel cell is provided comprising a positive electrode including a first gas diffusion layer and a first catalyst layer, a negative electrode including a second gas diffusion layer and a second catalyst layer, a proton exchange membrane (PEM) disposed between the positive and negative electrodes, and a microporous layer of carbon and binder disposed between at least one of the first gas diffusion layer and the first catalyst layer and the second gas diffusion layer and the second catalyst layer. The microporous layer may have defined therein a plurality of pores with a diameter of 0.05 to 2.0 &#x3bc;m and a plurality of bores having a diameter of 1 to 100 &#x3bc;m. The bores may be laser perforated and comprise from 0.1 to 5 percent of a total porosity of the microporous layer.

Microporous layer for a fuel cell

In at least one embodiment, a microporous layer configured to be disposed between a catalyst layer and a gas diffusion layer of a fuel cell electrode assembly is provided. The microporous layer may have defined therein a plurality of hydrophilic pores, a plurality of hydrophobic pores with a diameter of 0.02 to 0.5 &#x3bc;m, and a plurality of bores with a diameter of 0.5 to 100 &#x3bc;m. The microporous layer structures and gas diffusion layer assemblies disclosed herein may be defined by a number of various designs and arrangements for use in proton exchange membrane fuel cell systems.

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Novi, MI, United States of America

Zijie Lu