Honda Giken Kogyo Kabushiki Kaisha

Symyx Technologies, Inc.

Symyx Solutions, Inc.

Honda Motor Co., Ltd.

Freeslate, Inc.

Honda Giken Kogyo Kabushiki Kaisha, Kabushiki Kaisha Honda

Kenta Urata

Martin Devenney

Daniel Mark Giaquinta

Hiroyuki Oyanagi

Konstantinos Chondroudis

Peter Strasser

Qun Fan

Hiroichi Fukuda

Ting He

Keith James Cendak

Kazuhiko Iwasaki

Takashi Kato

Seiji Sugiura

Yukihito Tanaka

Hiroshi Shinkai

Kenichi Tanaka

Mihoko Kawaharada

Masanori Okabe

Masao Ichikawa

Katsutoshi Nosaki

Jennifer N Cendak, Legal Representative

Keith James c/o Symyx Technologies Inc Cendak

A membrane electrode assembly with protective film includes a MEA and protective films. The MEA includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. The protective films are joined on the outer end of the solid polymer electrolyte membrane. The membrane electrode assembly has a power generation area and an edge-vicinity area. Recesses for receiving the edge-vicinity area including outer ends of the cathode and the anode are formed in outer portions of a cathode-side separator and an anode-side separator which contact the MEA.

Fuel cell having a recess in the separator

A fuel cell includes a membrane electrode assembly, a first separator, and a second separator. The membrane electrode assembly includes a solid polymer electrolyte membrane, a first electrode, a second electrode, and a resin frame member. The membrane electrode assembly includes a power generation section and a stepped section. The power generation section is located in an interior space of the resin frame member. The solid polymer electrolyte membrane is provided between the first electrode and the second electrode in the power generation section. The stepped section is located on an outer side of the first electrode. The solid polymer electrolyte membrane is provided between the second electrode and the resin frame member in the stepped section. A magnitude of an interference in the stepped section is set to be smaller than a magnitude of an interference in the power generation section.

Fuel cell

A fuel cell catalyst containing platinum, zinc, and at least one of nickel and iron.

Fuel cell electrocatalyst of Pt-Zn-Ni/Fe

A composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum, copper, and nickel, wherein the concentration of platinum therein is greater than 50 atomic percent and less than 80 atomic percent, and further wherein the sum of the concentrations of platinum, copper and nickel is greater than 95 atomic percent.

Platinum-copper-nickel fuel cell catalyst

The present invention is directed to a composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum and copper, wherein the concentration of platinum is greater than 50 atomic percent and less than about 80 atomic percent, and further wherein the composition has a particle size which is less than 35 angstroms. The present invention is further directed to various methods for preparing such a composition.

Platinum-copper fuel cell catalyst

A fuel cell catalyst comprising platinum, chromium, and copper, nickel or a combination thereof. In one or more embodiments, the concentration of platinum is less than 50 atomic percent, and/or the concentration of chromium is less than 30 atomic percent, and/or the concentration of copper, nickel, or a combination thereof is at least 35 atomic percent.

Platinum-chromium-copper/nickel fuel cell catalyst

An improved metal alloy composition for a fuel cell catalyst containing platinum, manganese, and cobalt.

Fuel cell electrocatalyst of Pt-Mn-Co

A fuel cell catalyst comprising platinum, titanium and tungsten. In one or more embodiments, the concentration of platinum is less than 60 atomic percent, and/or the concentration of titanium is at least 20 atomic percent, and/or the concentration of tungsten is at least 25 atomic percent.

Platinum-titanium-tungsten fuel cell catalyst

A composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum, copper and tungsten, or an oxide, carbide and/or salt of one or more of platinum, copper and tungsten, wherein the sum of the concentrations of platinum, copper and tungsten, or an oxide, carbide and/or salt thereof, is greater than 90 atomic percent.

Platinum-copper-tungsten fuel cell catalyst

An improved metal alloy fuel cell electrocatalyst composition containing platinum, rhodium, molybdenum, and nickel iron or a combination thereof.

Fuel cell electrocatalyst of Pt-Rh-Mo-Ni/Fe

A water electrolyte cell can be used with a high energy efficiency over a long period of time. The water electrolyte cell has a pair of catalytic layers and an electrolyte membrane sandwiched between the catalytic layers. The catalytic layers includes an anode catalytic layer which contains a catalyst comprising an alloy of ruthenium, iridium, and at least one metal selected from the group consisting of iron, nickel, and cobalt, or an oxide of the alloy, or a mixture of the alloy and an oxide thereof. The at least one metal has a molar ratio with respect to ruthenium and iridium in the range from 0.05 to 0.13 mol with respect to 0.8 to 2.2 mols, preferably 1.8 to 2.2 mols, of ruthenium and 0.8 to 1.2 mols of iridium. The electrolyte membrane comprises a solid polymer electrolyte membrane.

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Utsunomiya, Japan

Kenta Urata