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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 32276. Отображено 100.
12-01-2012 дата публикации

Compression arrangement for fuel or electrolysis cells in a fuel cell stack or an electrolysis cell stack

Номер: US20120009499A1
Автор: Claus Rasmussen, Ib Skyum, Jens Ulrik Nielsen, Jeppe Rass-Hansen, Lars KIILSTOFTE HANSEN
Принадлежит: Topsoe Fuel Cell AS

A fuel cell stack or an electrolysis cell stack comprises a plurality of cells, which need to be compressed to ensure and maintain internal contact. To achieve an evenly distributed compression force throughout the electrochemically active area a frame with a central aperture is positioned on top of the cell stack between a resilient plate and a top plate. The enclosed aperture forms a compression chamber which is provided with pressurised gas from the cathode inlet, whereby an evenly distributed force is applied to the electrochemically area of the cell stack by the resilient plate.

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Номер записи: 1
19-01-2012 дата публикации

Battery and battery system

Номер: US20120015220A1
Автор: Hirokazu Kawaoka, Hiroshi Nagase, Yasuyuki Tamane
Принадлежит: Toyota Motor Corp

The present invention is a battery comprising: a power section containing a sulfur-based material; a distinguishing section which discolors by chemical reaction with hydrogen sulfide; and an exterior body incorporating the power section and the distinguishing section, the distinguishing section being observable from outside the exterior body. By checking discoloration of the distinguishing section or the distinguishing means, it is possible to easily detect the presence or absence of hydrogen sulfide in the battery and then judge deterioration of the battery with non-destructive inspection.

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Номер записи: 2
19-01-2012 дата публикации

Fuel cell system

Номер: US20120015272A1
Автор: Hiromi Tanaka, Masashi Fuji, Nobukazu MIZUNO, Osamu Yumita, Takayoshi Tezuka, Yoshiaki Naganuma
Принадлежит: Toyota Motor Corp

A fuel cell system suppresses the deterioration of an electrolyte membrane of a fuel cell. The fuel cell system comprises: a temperature rise speed calculation unit for calculating a target temperature rise speed of the fuel cell using a temperature of the fuel cell and a water content of the fuel cell; and a drive control unit for controlling a drive of the cooling water pump using the temperature rise speed of the fuel cell and the target temperature rise speed calculated by the temperature rise speed calculation unit. The drive control unit controls the drive of the cooling water pump such that a circulation amount of the cooling water is decreased when the temperature rise speed of the fuel cell is below the target temperature rise speed and controls the drive of the cooling water pump such that the circulation amount of the cooling water is increased when the temperature rise speed of the fuel cell is equal to or greater than the target temperature rise speed.

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Номер записи: 3
26-01-2012 дата публикации

Fuel cell assembly and fuel cell device

Номер: US20120021327A1
Автор: Naoki Watanabe, Nobuo Isaka, Shuichiro Saigan, Yousuke Akagi
Принадлежит: TOTO LTD

The fuel cell assembly of the present invention comprises a first fuel cell, a second fuel cell disposed adjacent to the first fuel cell, and a current collector for electrically connecting the first fuel cell and the second fuel cell. The first fuel cell and the second fuel cell are respectively furnished with an electrical generating portion for generating electricity, each of the electrical generation portion having a first electrode through the interior of which a first gas flows, a second electrode of a polarity different from the first electrode, on the exterior of which a second gas flows, and an electrolyte disposed between the first electrode and the second electrode. The current collector distributes and sources the current generated in the first fuel cell generating portion from two different locations on the first electrode on the first fuel cell to the second electrode of the second fuel cell.

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Номер записи: 4
02-02-2012 дата публикации

Compression casing for a fuel cell stack and a method for manufacturing a compression casing for a fuel cell stack

Номер: US20120028159A1
Автор: Martin Refslund Nielsen, Niels H.B. Erikstrup
Принадлежит: Topsoe Fuel Cell AS

A fuel cell or electrolysis cell stack has force distribution members with one planar and one convex shape applied to at least its top and bottom face and in one embodiment further to two of its side faces. A compressed mat and further a rigid fixing collar surrounds the stack and force distribution members, whereby the stack is submitted to a compression force on at least the top and bottom face and potentially also to two side faces. The assembly is substantially gas tight in an axial direction of the primarily oval or circular shape and can be fitted with gas tight end plates to form robust gas inlet and outlet manifolds.

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Номер записи: 5
16-02-2012 дата публикации

Method for preparing an electrically conducting article

Номер: US20120038079A1
Автор: David Descarsin, Dominique Rocle, Gregoire Delacourt, Herve Galiano, Olivier Perrier, Philippe Mazabraud
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, RAIGI

The invention relates to a method for manufacturing an electrically conducting article comprising the following steps: a step for mixing via a dry route a powder comprising at least one thermosetting resin comprising at least two epoxide groups, a hardener compound powder for said resin and an electrically conducting filler powder; a step for thermocompression of the mixture of powders obtained in the previous step in a mold with a shape adapted to the article and at an effective temperature for obtaining cross-linking of the resin, at the end of which the electrically conducting article is obtained.

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Номер записи: 6
16-02-2012 дата публикации

Solid oxide fuel cell including a coupling structure

Номер: US20120040267A1
Автор: Duk-Hyoung Yoon, Shunsuke Taniguchi
Принадлежит: Samsung Mobile Display Co Ltd, Samsung SDI Co Ltd

A solid oxide fuel cell having a coupling structure, the solid oxide fuel cell including a plurality of cells, each cell having a cell cap at an end thereof; and the coupling structure, the coupling structure connecting the plurality of cells, wherein the coupling structure includes a connector, the connector including an insulating portion at a center thereof, and coupling portions adjacent to the insulating portion at respective sides of the insulating portion and coupled to the cell caps.

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Номер записи: 7
15-03-2012 дата публикации

Method of treatment for imparting conductivity to surface of separator-use base member of solid polymer type fuel cell

Номер: US20120064232A1
Автор: Hiroshi Kihira, Keisuke Yamazaki, Koki Tanaka, Wataru Hisada
Принадлежит: Sintokogio Ltd

The present invention provides a method of treatment for imparting conductivity to a surface of a separator-use base member resulting in little distortion and superior conductive performance for a separator-use base member of a solid polymer type fuel cell made of any of a sheet of stainless steel, titanium, or titanium alloy, comprising a step of spray coating and drying on the surface of the separator-use base member a suspension prepared by mixing conductive compound particles 3 of an average particle size of 1 to 10 μm with ethanol or water so as to form a conductive compound particle-coated layer 2 , a step of blasting the conductive compound particle-coated layer 2 with blast particles 4 having an average particle size of 50 to 200 μm so as to drive the conductive compound particles 3 in the inside direction of the separator-use base member 3 and anchor them there, and a step of cleaning off conductive compound particles 3 not anchored to the surface of the separator-use base member 1 at that step and impurities.

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Номер записи: 8
22-03-2012 дата публикации

Fuel Cell with Rapid Pressure Balancing

Номер: US20120070754A1
Автор: Kenneth Smith
Принадлежит: Kenneth Smith

A fuel cell provides for rapid pressure equalization across the proton exchange membrane by means of an expansion chamber on one side of the proton exchange membrane, the expansion chamber communicating with the gas on the other side of the membrane. Changes in size of the expansion chamber adjust pressure more rapidly than external control of flow rates.

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Номер записи: 9
12-04-2012 дата публикации

Composite end cell thermal barrier with an electrically conducting layer

Номер: US20120088174A1
Автор: Eric J. Connor, Gerald W. Fly
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A barrier layer for a fuel cell assembly is disclosed, the barrier layer having a thermally insulating layer having a first surface and a second surface, and an electrically conducting layer formed on the first surface of the thermally insulating layer. The thermally insulating layer may include a plurality of apertures formed therethrough, and the electrically conducting layer may be formed on a second surface of the thermally insulating layer and on the walls of the thermally insulating layer forming the apertures.

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Номер записи: 10
12-04-2012 дата публикации

Fuel cell and fuel cell stack

Номер: US20120088183A1
Автор: Keisuke Andou, Masajiro Inoue, Narutoshi Sugita, Takayuki Ogawa, Toshihiko Suenaga
Принадлежит: Honda Motor Co Ltd

In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

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Номер записи: 11
26-04-2012 дата публикации

Fuel cell system and control method therefor

Номер: US20120100449A1
Автор: Sho Usami, Yasushi Araki
Принадлежит: Toyota Motor Corp

A fuel cell system includes: a fuel cell activation portion that starts electricity generation of a fuel cell; a cooling medium passage that is provided with a pump and that is provided for passing a cooling medium through a cell-side passage for the cooling medium; and a pump control portion that stops the pump for a first predetermined period after a start of the electricity generation caused by the fuel cell activation portion at a time when a temperature of the fuel cell is a low temperature lower than or equal to a predetermined value, and that starts operating the pump after the first predetermined period elapses. The pump control portion includes a cooling medium reverse portion that alternately reverses a direction of flow of the cooling medium in the cell-side passage according to elapsed time by controlling operation of the pump after the first predetermined period elapses.

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Номер записи: 12
03-05-2012 дата публикации

Structure of solid oxide fuel cell

Номер: US20120107715A1
Автор: Kenji Suzuki, Kunihiko Yoshioka, Makoto Ohmori, Takashi Ryu
Принадлежит: NGK Insulators Ltd

On each of upper and lower surfaces of a flat-plate-like support substrate having a longitudinal direction and having fuel gas flow channels formed therein, a plurality of power-generating elements A connected electrically in series are disposed at predetermined intervals along the longitudinal direction. On each of the upper and lower surfaces of the support substrate, a plurality of recesses are formed at predetermined intervals along the longitudinal direction. Each of the recesses is a rectangular-parallelepiped-like depression defined by four side walls arranged in a circumferentially closed manner and a bottom wall. That is, in the support substrate, frames are formed to surround the respective recesses. Fuel electrodes of the power-generating elements A are embedded in the respective recesses, and inter connectors are embedded in respective recesses formed on the outer surfaces of the fuel electrodes.

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Номер записи: 13
03-05-2012 дата публикации

Apparatus and method for generating electricity in liquefied natural gas carrier

Номер: US20120108117A1
Автор: Byung Sung Kim, Eun Bae Lee, Hyuk Kwon, Hyun Jin Kim, Jung Ho Choi, Ki Seok Kim, Sung Geun Lee, Yong Seok Choi
Принадлежит: Daewoo Shipbuilding and Marine Engineering Co Ltd

Provided is an apparatus for generating electricity required by an LNG carrier which stores LNG, which is obtained by liquefying natural gas to ultra low temperature in a gas field, in an LNG storage tank and carries the stored LNG. The apparatus includes: a reformer reforming boil-off gas occurring in the LNG storage tank and producing synthetic gas; and a fuel cell generating electricity through an electrochemical reaction of the synthetic gas produced by the reformer.

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Номер записи: 14
10-05-2012 дата публикации

Wet lamination process for reducing mud cracking in fuel cell components

Номер: US20120111490A1
Автор: Bradley M. Houghtaling, Paul D. Nicotera, Robert R. Quiel, Scott C. Moose
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods of making a substantially crack-free electrode layer are described. The methods include depositing an electrode ink on a substrate; placing a solid polymer film on a surface of the wet electrode ink; drying the electrode ink; and removing the solid polymer film from the surface of the dry electrode ink to form the substantially crack-free electrode layer on the substrate.

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Номер записи: 15
10-05-2012 дата публикации

Process for producing fuel cell catalyst, fuel cell catalyst obtained by production process, and uses thereof

Номер: US20120115064A1
Автор: Kenichiro Ota, Ryuji Monden, Takuya Imai, Toshikazu Shishikura, Yasuaki Wakizaka
Принадлежит: Showa Denko KK

It is an object of the present invention to provide a production process which can produce a fuel cell catalyst having excellent durability and high oxygen reducing activity. The process for producing a fuel cell catalyst including a metal-containing oxycarbonitride of the present invention includes a grinding step for grinding the oxycarbonitride using a ball mill, wherein the metal-containing oxycarbonitride is represented by a specific compositional formula; balls in the ball mill have a diameter of 0.1 to 1.0 mm; the grinding time using the ball mill is 1 to 45 minutes; the rotating centrifugal acceleration in grinding using the ball mill is 2 to 20 G; the grinding using the ball mill is carried out in such a state that the metal-containing oxycarbonitride is mixed with a solvent containing no oxygen atom in the molecule; and when the ball mill is a planetary ball mill, the orbital centrifugal acceleration mill is 5 to 50 G.

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Номер записи: 16
17-05-2012 дата публикации

Stainless steel separator for fuel cell having m/mnx and moynz layer and method for manufacturing the same

Номер: US20120118724A1
Автор: Eun Young Kim, Hyun Sik Myung, Jong In Park, Kyeong Woo Chung, Yong Sik Yun, Yoo Taek JEON
Принадлежит: Eun Young Kim, Hyun Sik Myung, JEON Yoo Taek, Jong In Park, Kyeong Woo Chung, Yong Sik Yun

Disclosed herein is a method of manufacturing a stainless steel separator for a fuel cell. The stainless steel separator includes a stainless steel sheet, a first coating layer comprising metal/metal nitride films (M/MN x ) (0.5≦x≦1) on a surface of the stainless steel sheet, and a second coating layer comprising a metal oxynitride film (MO y N z ) (0.05≦y≦2, 0.25≦z≦1.0).

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Номер записи: 17
17-05-2012 дата публикации

Fuel cell electrode catalyst, method for evaluating performance of oxygen-reducing catalyst, and solid polymer fuel cell comprising the fuel cell electrode catalyst

Номер: US20120122666A1
Автор: Hirofumi Iisaka, Yukiyoshi Ueno
Принадлежит: Toyota Motor Corp

According to the present invention, a fuel cell electrode catalyst comprising molybdenum, a different transition metal element, and a chalcogen element and having high activity is provided with an index for performance evaluation that is useful for Ogood catalyst design. Also, a fuel cell electrode catalyst is provided, such catalyst comprising at least one transition metal element (M1), molybdenum (Mo), and at least one chalcogen element (X), wherein the value of (Mo—O coordination number)/[(Mo—O coordination number)+(Mo—X coordination number)] is 0.44 to 0.66.

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Номер записи: 18
31-05-2012 дата публикации

Location of a fuel cell on a mobile device

Номер: US20120135277A1
Автор: Chris Wormald, Lyall Kenneth WINGER, Raymond Reddy
Принадлежит: Research in Motion Ltd

A mobile device having: a keyboard; a printed circuit board having at least one contact responsive to the keyboard; and a fuel cell assembly having: a fuel cell located between the keyboard and the printed circuit board, the fuel cell having a membrane and at least one aperture corresponding with the at least one contact; a tank adapted to store a fuel for the fuel cell; and piping connecting the tank with the fuel cell, where the fuel cell ventilates through the keyboard. Alternatively, the fuel cell acts as the printed circuit board and at least one contact for the keyboard is printed onto the fuel cell.

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Номер записи: 19
14-06-2012 дата публикации

Inorganic and/or organic acid-containing catalyst ink and use thereof in the production of electrodes, catalyst-coated membranes, gas diffusion electrodes and membrane electrode units

Номер: US20120148936A1
Автор: Oemer Uensal, Sigmar Braeuninger
Принадлежит: BASF SE

Catalyst ink comprising one or more catalyst materials, a solvent component and at least one acid, an electrode comprising at least one catalyst ink according to the present invention, a membrane-electrode assembly comprising at least one electrode according to the invention or comprising at least one catalyst ink according to the present invention, a fuel cell comprising at least one membrane-electrode assembly according to the invention and also a process for producing a membrane-electrode assembly according to the present invention.

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Номер записи: 20
14-06-2012 дата публикации

Metal separator plate for fuel cell having coating film formed on surface and method for producing same

Номер: US20120148941A1
Автор: Ki-Jung Kim, Yoo-Taek Jeon
Принадлежит: Hyundai Hysco Co Ltd

Disclosed herein is a method for manufacturing a metal steel separator for fuel cells that has corrosion resistance and contact resistance not only at an initial stage but also after being exposed to high temperature/high humidity conditions in the fuel cell for a long period of time. The method includes preparing a stainless steel sheet as a matrix of the metal separator, forming a discontinuous coating film on the surface of the stainless steel sheet, the coating film being composed of at least one selected from gold (Au), platinum (Pt), ruthenium (Ru), iridium (Ir), ruthenium oxide (RuO 2 ), and iridium oxide (IrO 2 ), and heat treating the stainless steel sheet having the discontinuous coating film to form an oxide film on a portion of the stainless steel sheet on which the coating film is not formed. A metal separator for fuel cells manufactured by the method is also disclosed.

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Номер записи: 21
12-07-2012 дата публикации

Hot zone igniter

Номер: US20120175405A1
Автор: Diane M. England, Gail E. Geiger
Принадлежит: Delphi Technologies Inc

A method is provided for brazing a metal leadframe clip to an electrical resistance heating tip for an electrical resistance igniter, wherein the electrical resistance heating tip includes silicon carbide. The method includes forming a layer of SiO 2 /Al 2 O 3 on a surface of the electrical resistance heating tip; applying a braze alloy paste between the layer of SiO 2 /Al 2 O 3 and the metal leadframe clip; and heating the braze alloy, the metal leadframe clip and the electrical resistance heating tip to fuse the braze alloy.

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Номер записи: 22
12-07-2012 дата публикации

Cathode material for fuel cell, cathode for fuel cell including the same, method of manufacturing the cathode, and solid oxide fuel cell including the cathode

Номер: US20120178016A1
Автор: Doh-won JUNG, Hee-Jung Park
Принадлежит: Samsung Electro Mechanics Co Ltd, SAMSUNG ELECTRONICS CO LTD

A cathode material for a fuel cell, the cathode material for a fuel cell including a lanthanide metal oxide having a perovskite crystal structure; and a bismuth metal oxide represented by Chemical Formula 1 below, Bi 2-x-y A x B y O 3 ,  Chemical Formula 1 wherein A and B are each a metal with a valence of 3, A and B are each independently at least one element selected from a rare earth element and a transition metal element, A and B are different from each other, and 0<x≦0.3 and 0<y≦0.3.

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Номер записи: 23
26-07-2012 дата публикации

Fuel cell system and method of operating fuel cell system

Номер: US20120189925A1
Автор: Masaaki Matsusue
Принадлежит: Toyota Motor Corp

A fuel cell system in which excess water vapor or nitrogen gas is prevented from remaining inside the fuel cell in intermittent operation. The fuel cell system is provided with a fuel cell having a cell stack formed by stacking a plurality of unit cells each having an anode electrode, a cathode electrode, an electrode membrane located between the anode electrode and the cathode electrode, and a reaction gas flow channel. The fuel cell system includes an estimation unit that estimates a water vapor amount and a nitrogen gas amount at a plurality of predetermined positions inside at least one of the electrolyte membrane and the reaction gas flow channel; and an operation control unit that compares, during an operation stop of intermittent operation, at least either of the water vapor amount or the nitrogen gas amount at each of the predetermined positions that has been estimated by the estimation unit with a threshold for each of the predetermined positions that has been set with consideration for a stacking direction of the unit cells and a flow channel direction of the reaction gas flow channel, and supplies a gas including hydrogen gas to the reaction gas flow channel and discharges water vapor and nitrogen gas from inside the fuel cell when at least either of the water vapor amount and the nitrogen gas amount exceeds the threshold at at least one of the positions.

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Номер записи: 24
26-07-2012 дата публикации

Manufacturing method of electrode catalyst layer, membrane electrode assembly using the same, fuel cell using the same and complex particles

Номер: US20120189941A1
Автор: Haruna Kurata, Hiroyuki Morioka, Kenichiro Oota, Saori Okada
Принадлежит: Individual

The present invention provides a manufacturing method of an electrode catalyst layer which contains a catalyst, carbon particles and a polymer electrolyte, wherein an oxide type of non-platinum catalyst is used as the catalyst and a fuel cell employing the electrode catalyst layer achieves a high level of power generation performance. The manufacturing method of the electrode catalyst layer of the present invention includes at least: preparing a first catalyst ink, in which a catalyst, first carbon particles and a first polymer electrolyte are dispersed in a first solvent, drying the first catalyst ink to form complex particles, preparing a second catalyst ink, in which the complex particles, second carbon particles and a second polymer electrolyte are dispersed in a second solvent, and coating the second catalyst ink on a substrate to form the electrode catalyst layer.

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Номер записи: 25
26-07-2012 дата публикации

Method for determining deterioration of fuel cell

Номер: US20120191385A1
Автор: Masaki Mitsui, Takashi Akiyama
Принадлежит: Panasonic Corp

Deterioration of a fuel cell is accurately determined within a short period of time by the steps of: (a) detecting an output power P of a fuel cell; (b) detecting a peak of the output power P after a startup of the fuel cell; (c) calculating a decrease rate D of the output power P after the peak of the output power P; (d) comparing the calculated decrease rate D with a reference decrease rate Dref; and (e) determining deterioration of the fuel cell based on a comparison result of the step (d).

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Номер записи: 26
02-08-2012 дата публикации

Molten carbonate fuel cells including reinforced lithium aluminate matrix, method for preparing the same, and method for supplying lithium source

Номер: US20120196204A1
Автор: Bo Hyun Ryu, In Gab Chang, In Hwan Oh, Jong Hee Han, Seong Cheol Jang, Shin Ae Song, Suk Woo Nam, Sung Pil Yoon, Tae Won Lee
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

Disclosed is a molten carbonate fuel cell comprising a reinforced lithium aluminate matrix, a cathode, an anode, a cathode frame channel and an anode frame channel, wherein at least one of the cathode frame channel and the anode frame channel is filled with a lithium source. Disclosed also are a method for producing the same, and a method for supplying a lithium source. The molten carbonate fuel cell in which a lithium source is supplied to an electrode has high mechanical strength and maintains stability of electrolyte to allow long-term operation.

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Номер записи: 27
16-08-2012 дата публикации

Fuel cell system

Номер: US20120208098A1
Автор: Hiroki Ohkawara, Minoru Suzuki, Shin Iwata, Susumu Takami
Принадлежит: Aisin Seiki Co Ltd, Osaka Gas Co Ltd

A fuel cell system includes a source gas passage including a first desulfurizer that has a desulfurization performance relative to a source gas having a relatively higher dew point, and a second desulfurizer that has the desulfurization performance relative to a source gas having a relatively lower dew point and the source gas having the relatively higher dew point. The desulfurization performance of the second desulfurizer relative to the source gas having the relatively higher dew point is lower than the desulfurization performance of the second desulfurizer relative to the source gas having the relatively lower dew point. The first desulfurizer, the second desulfurizer, and a flowmeter are arranged at the source gas passage in the aforementioned order from an upstream side to a downstream side of the source gas passage in a flow direction of the source gas.

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Номер записи: 28
30-08-2012 дата публикации

Carbon Dioxide Permeable Membrane

Номер: US20120219483A1
Автор: Alan C. West, Jennifer L. Wade, Klaus S. Lackner
Принадлежит: Columbia University of New York

A carbon dioxide permeable membrane is described. In some embodiments, the membrane includes a body having a first side and an opposite second side; a plurality of first regions formed from a molten carbonate having a temperature of about 400 degrees Celsius to about 1200 degrees Celsius, the plurality of first regions forming a portion of the body and the plurality of first regions extending from the first side of the body to the second side of the body; a plurality of second regions formed from an oxygen conductive solid oxide, the plurality of second regions combining with the plurality of first regions to form the body and the plurality of second regions extending from the first side of the body to the second side of the body; and the body is configured to allow carbon dioxide to pass from the first side to the second side.

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Номер записи: 29
30-08-2012 дата публикации

Method for manufacture and structure of multiple electrochemistries and energy gathering components within a unified structure

Номер: US20120219830A1
Автор: Ann Marie Sastry, Chia Wei Wang, Fabio Albano
Принадлежит: Sakti3 Inc

A method for using an integrated battery and device structure includes using two or more stacked electrochemical cells integrated with each other formed overlying a surface of a substrate. The two or more stacked electrochemical cells include related two or more different electrochemistries with one or more devices formed using one or more sequential deposition processes. The one or more devices are integrated with the two or more stacked electrochemical cells to form the integrated battery and device structure as a unified structure overlying the surface of the substrate. The one or more stacked electrochemical cells and the one or more devices are integrated as the unified structure using the one or more sequential deposition processes. The integrated battery and device structure is configured such that the two or more stacked electrochemical cells and one or more devices are in electrical, chemical, and thermal conduction with each other.

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Номер записи: 30
13-09-2012 дата публикации

Porous ceramic molten metal composite solid oxide fuel cell anode

Номер: US20120231366A1
Автор: Eric D. Wachsman, Sean Robert Bishop
Принадлежит: University of Florida Research Foundation Inc

A fuel cell anode comprises a porous ceramic molten metal composite of a metal or metal alloy, for example, tin or a tin alloy, infused in a ceramic where the metal is liquid at the temperatures of an operational solid oxide fuel cell, exhibiting high oxygen ion mobility. The anode can be employed in a SOFC with a thin electrolyte that can be a ceramic of the same or similar composition to that infused with the liquid metal of the porous ceramic molten metal composite anode. The thicknesses of the electrolyte can be reduced to a minimum that allows greater efficiencies of the SOFC thereby constructed.

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Номер записи: 31
13-09-2012 дата публикации

Composite proton conducting membrane with low degradation and membrane electrode assembly for fuel cells

Номер: US20120231367A1
Автор: Jing Li, Keping Wang, Yunsong Yang
Принадлежит: DAIMLER AG, Ford Motor Co

A small molecule or polymer additive can be used in preparation of a membrane electrode assembly to improve its durability and performance under low relative humidity in a fuel cell. Specifically, a method of forming a membrane electrode assembly comprising a proton exchange membrane, comprises providing an additive comprising at least two nitrogen atoms to the membrane electrode assembly.

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Номер записи: 32
13-09-2012 дата публикации

Process for production of scandia-stabilized zirconia sheet, scandia-stabilized zirconia sheet obtained by the process, and scandia-stabilized zirconia sintered powder

Номер: US20120231368A1
Автор: Kazuo Hata, Norikazu Aikawa
Принадлежит: NIPPON SHOKUBAI CO LTD

The process for production of a scandia-stabilized zirconia sheet according to the present invention is characterized in comprising the steps of pulverizing a scandia-stabilized zirconia sintered body to obtain a scandia-stabilized zirconia sintered powder having an average particle diameter (De) determined using a transmission electron microscope of more than 0.3 μm and not more than 1.5 μm, and an average particle diameter (Dr) determined by a laser scattering method of more than 0.3 μm and not more than 3.0 μm, and a ratio (Dr/De) of the average particle diameter determined by the laser scattering method to the average particle diameter determined using the transmission electron microscope of not less than 1.0 and not more than 2.5; preparing a slurry containing the scandia-stabilized zirconia sintered powder and a zirconia unsintered powder, wherein a percentage of the scandia-stabilized zirconia sintered powder to a sum of the scandia-stabilized zirconia sintered powder and the zirconia unsintered powder in the slurry is not less than 2 mass % and not more than 40 mass %; forming the slurry into a greensheet; and sintering the greensheet.

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Номер записи: 33
13-09-2012 дата публикации

Metallic bipolar plate for fuel cell and method for forming surface layer thereof

Номер: US20120231372A1
Автор: In Woong Lyo, Jeong Uk An, Seung Gyun Ahn, Sung Moon Choi, Yoo Chang Yang, Young Min Nam
Принадлежит: Hyundai Motor Co

A metallic bipolar plate for a fuel cell, in which a carbon coating layer containing fluorine is formed on the surface of a stainless steel base material, thus having excellent electrical conductivity and corrosion resistance and further excellent water draining performance and heat radiating performance. In the metallic bipolar plate for a fuel cell of the present invention, the internal residual stress in the surface coating layer is significantly reduced due to the addition of fluorine, and thereby it is possible to improve the adhesive strength between the stainless steel and the surface coating layer.

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Номер записи: 34
04-10-2012 дата публикации

Self-humidifying membrane and self-humidifying fuel cell

Номер: US20120251903A1
Автор: King Lun Yeung, WEI Han
Принадлежит: Hong Kong University of Science and Technology HKUST

A self-humidifying fuel cell is made by preparing a porous substrate, coating the substrate with a zeolitic material and filling the pores with a proton-conducting material. The coating of the substrate includes selecting a zeolitic material, and applying coating on the pore walls and surface of the porous substrate, to form zeolitic material-coated pores. The resulting composite material is used as a self-humidifying proton-conducting membrane in a fuel cell.

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Номер записи: 35
04-10-2012 дата публикации

Pressure-based liquid level detection and control for a fuel cell stack assembly

Номер: US20120251909A1
Автор: Praveen Narasimhamurthy
Принадлежит: UTC Power Corp

A fluid detection system and method for a fuel cell power plant is disclosed having a pressure sensor ( 61, 161 ) positioned in a fuel cell stack assembly ( 10 ) to measure pressure of fluid/liquid in a fluid/liquid flow path ( 40, 42, 44 ) therein and to provide a pressure-based signal ( 90, 63 ). The pressure-based signal ( 90, 63 ) is used to control a liquid management arrangement ( 53 ) at least during start-up and shut-down of the cell stack assembly ( 10 ) to regulate water level. The liquid management arrangement ( 53 ) may include means ( 50, 51 ) for controllably applying and releasing a vacuum to a water manifold ( 44, 54; 100 ) of the cell stack assembly ( 10 ) to regulate water flow and level therein. The pressure-based control of water level may extend across the entire operating range of the cell stack assembly ( 10 ), or may be complemented during steady state operation by voltage-based sensors ( 66, 166 ).

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Номер записи: 36
04-10-2012 дата публикации

Method for controlling fuel cell system

Номер: US20120251910A1
Автор: Chihiro Wake, Yuji Matsumoto
Принадлежит: Honda Motor Co Ltd

A method includes an in-stop-mode power generating process and a first startup process. In the a first startup process, if an operation start instruction to start a fuel cell system is detected after the in-stop-mode power generating process, supply of a fuel gas from a fuel-gas supply apparatus is started, and supply of an oxide gas from an oxide-gas supply apparatus is started after a predetermined time has elapsed from the starting of supply of the fuel gas, when a pressure of an anode side is equal to or lower than a first threshold pressure.

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Номер записи: 37
04-10-2012 дата публикации

Polymer fuel cell stack and polymer fuel cell separator pair

Номер: US20120251918A1
Автор: Atusi Murata, Mitsuo Yoshimura, Takashi Morimoto, Toshihiro Matsumoto, Yoko Yamamoto
Принадлежит: Panasonic Corp

A fuel cell separator pair has first and second separators having front and back surfaces, a corrugated plate portion shaped in a wave form at the central portion, and a flat plate portion formed in the peripheral portion and surrounding the corrugated plate portion, wherein the corrugated plate portion of the front surface constitutes a reaction gas channel and the corrugated plate portion of the back surface constitutes a coolant channel. The back surfaces of the first and second separators are facing each other. The flat plate portions of the first and second separators are arranged on top of each other so as to be in contact with each other. The flat plate portion of the second separator protrudes toward the outside beyond the flat plate portion of the first separator. The fuel cell separator pair has a seal member (A) disposed on the flat plate portion of the front surface of the first separator, a seal member (B) disposed on the flat plate portion of the front surface of the second separator, and a seal member (C) disposed on the region protruding beyond the flat plate portion of the first separator in the flat plate portion of the back surface of the second separator.

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Номер записи: 38
11-10-2012 дата публикации

Fuel cell and apparatus for producing fuel cell

Номер: US20120258379A1
Автор: Masahiro Fukuta, Masami Kurimoto, Yasuhide FUKUSHIMA, Yohei Kataoka
Принадлежит: Honda Motor Co Ltd

A fuel cell is formed by stacking membrane electrode assemblies and metal separators. The metal separator is formed by adhering and joining together an anode separator and a cathode separator. In the metal separator, a step is provided on an outer circumferential end of the cathode separator, the step being spaced from an outer circumferential end of the anode separator. An adhesive layer is formed on the step between the outer circumferential end of the cathode separator and the outer circumferential end of the anode separator.

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Номер записи: 39
11-10-2012 дата публикации

Curable Compositions And Membranes

Номер: US20120259027A1
Автор: Bastiaan Van Berchum, Harro Antheunis, Jacko Hessing
Принадлежит: FUJIFILM MANUFACTURING EUROPE BV

A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii) 15 to 45 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; wherein the molar ratio of (i):(ii) is 0.1 to 1.5. The compositions are useful for preparing ion exchange membranes.

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Номер записи: 40
25-10-2012 дата публикации

Fuel cell system and operating method for fuel cell system

Номер: US20120270124A1
Автор: Takashi Shigehisa, Takatoshi Masui
Принадлежит: Kyocera Corp, Toyota Motor Corp

A fuel cell system includes: a fuel cell that generates power using an oxidant gas and a fuel gas; estimating means for estimating an electric resistance of the fuel cell in accordance with a voltage and a current of the fuel cell; and temperature controlling means for performing control to raise a temperature of the fuel cell when the electric resistance estimated by the estimating means exceeds a target electric resistance range and reduce the temperature of the fuel cell when the estimated electric resistance falls below the target electric resistance range.

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Номер записи: 41
25-10-2012 дата публикации

Method for Detecting the Permeability State of the Ion Exchanger Polymer Membrane of a Fuel Cell

Номер: US20120270127A1
Автор: Gino Paganelli
Принадлежит: Individual

Procedure for detecting the permeability state of the polymeric ion-exchange membrane of a fuel cell stack, in which, as soon as the pressure difference in the anode and cathode circuits drops to a value below a threshold value P S , the pressure variation in said circuits for a predetermined time period t C is measured and the pressure difference in these circuits at the end of a predetermined time period, called the control pressure P C , is calculated and a warning is given when the control pressure P C is below a warning threshold P A .

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Номер записи: 42
01-11-2012 дата публикации

Porous medium with increased hydrophobicity and method of manufacturing the same

Номер: US20120276335A1
Автор: Bo Ki Hong, Kwang Ryeol Lee, Myoung Woon Moon, Sae Hoon Kim
Принадлежит: Hyundai Motor Co, Korea Advanced Institute of Science and Technology KAIST

The present invention provides a porous medium with increased hydrophobicity and a method of manufacturing the same, in which a micro-nano dual structure is provided by forming nanoprotrusions with a high aspect ratio by performing plasma etching on the surface of a porous medium with a micrometer-scale surface roughness and a hydrophobic thin film is deposited on the surface of the micro-nano dual structure, thus significantly increasing hydrophobicity. When this highly hydrophobic porous medium is used as a gas diffusion layer of a fuel cell, it is possible to efficiently discharge water produced during electrochemical reaction of the fuel cell, thus preventing flooding in the fuel cell. Moreover, it is possible to sufficiently supply reactant gases such as hydrogen and air (oxygen) to a membrane electrode assembly (MEA), thus improving the performance of the fuel cell.

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Номер записи: 43
01-11-2012 дата публикации

Fuel cell stack, manufacturing method of fuel cell stack and replacement method of module as constituent of fuel cell stack

Номер: US20120276469A1
Автор: Fumishige Shizuku
Принадлежит: Toyota Motor Corp

A fuel cell stack includes: a first module configured to include an electrolyte membrane, an anode and a cathode; a second module configured to include a separator and placed adjacent to one surface of the first module via a first sealing member; and a third module configured to include a separator and placed adjacent to the other surface of the first module via a second sealing member. In this fuel cell stack, the first sealing member has the greater peel strength to the first module than the peel strength to the second module, and the second sealing member has the greater peel strength to the first module than the peel strength to the third module.

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Номер записи: 44
22-11-2012 дата публикации

Catalysts for use in electrochemical applications and electrodes and devices using same

Номер: US20120295137A1
Автор: Dieter von Deak, Elizabeth Biddinger, Umit S. Ozkan
Принадлежит: Ohio State University

An electrode for reduction of an oxidant including a phosphorus-doped carbon-containing catalyst represented by the chemical formula CN x P y , where x is from 0 to about 10 wt. % and y is from about 1 ppm to about 10 wt. %. A device for producing electricity by facilitating an electrochemical reaction between a fuel and an oxidant. The device including a first electrode for oxidizing the fuel to produce protons and electrons. The device further includes a second electrode in electrical communication with the first electrode when electrically connected to the external circuit. The second electrode includes a phosphorus-doped carbon-containing catalyst for reducing the oxidant and is represented by the chemical formula CN x P y , where x is from 0 to about 10 wt. % and y is from about 1 ppm to about 10 wt. %. The device further includes an electrolyte, such as, a membrane, separating the first electrode from the second electrode.

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Номер записи: 45
22-11-2012 дата публикации

High-potential stable oxide support for polymer electrolyte fuel cell

Номер: US20120295184A1
Автор: Hiroyuki Uchida, Katsuyoshi Kakinuma, Makoto Uchida, Masahiro Watanabe, Takeo Kamino
Принадлежит: University of Yamanashi NUC

Disclosed is an oxide and/or nitride support for electrode catalysts, which is used for electrodes for polymer electrolyte fuel cells (PEFC). The support for electrode catalysts is an aggregation body of primary particles of oxide of at least one kind of metal selected from rare earths, alkaline earths, transition metals, niobium, bismuth, tin, antimony, zirconium, molybdenum, indium, tantalum, and tungsten, and the aggregation body is configured such that at least 80% of the metal oxide primary particles having a size of 5 nm to 100 nm aggregate and bind each other to form dendritic or chain structures each of which is made of 5 or more of the metal oxide primary particles.

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Номер записи: 46
29-11-2012 дата публикации

Carbon nanotube and nanofiber film-based membrane electrode assemblies

Номер: US20120301812A1
Автор: Ben Wang, Changchun Zeng, Chun Zhang, Jian-ping (Jim) Zheng, Wei Zhu, Zhiyong Liang
Принадлежит: Florida State University Research Foundation Inc

A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The method can include the steps of placing buckypaper in a vessel with a catalyst-precursor salt and a fluid. The temperature and pressure conditions within the vessel are modified so as to place the fluid in the supercritical state. The supercritical state of the supercritical fluid containing the precursor salt is maintained for period of time to impregnate the buckypaper with the catalyst-precursor salt. Catalyst nanoparticles are deposited on the buckypaper. The supercritical fluid and the precursor are removed to form a metal catalyst impregnated buckypaper.

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Номер записи: 47
06-12-2012 дата публикации

Bipolar separator assembly for fuel cells and method of making same

Номер: US20120308910A1
Автор: Lawrence J. Novacco, Michael Primerano, William Morris
Принадлежит: Fuelcell Energy Inc

A bipolar separator assembly for use with a fuel cell comprising: a plate member having opposing first and second surfaces compatible with fuel gas and oxidant gas, respectively, the plate member having first and second opposing end segments and third and fourth opposing end segments which are transverse to the first and second opposing end segments; first and second pocket members situated adjacent the first and second end segments and extending outward of the first surface, the first and second pocket members being adapted to enclose opposing ends of an anode current collector, and third and fourth pocket members situated adjacent the third and fourth end segments and extending outward of the second surface, the third and fourth pocket members being adapted to enclose opposing ends of a cathode current collector, wherein at least a portion of each of the first, second, third and fourth pocket members is formed separately from the plate member and is releasably positioned relative to the plate member.

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Номер записи: 48
06-12-2012 дата публикации

Cathode material for fuel cell, cathode including the cathode material, solid oxide fuel cell including the cathode

Номер: US20120308915A1
Автор: Dengjie CHEN, Hee-Jung Park, Huangang SHI, Kyoung-seok MOON, Soo-Yeon Seo, Zongping Shao
Принадлежит: Samsung Electro Mechanics Co Ltd, SAMSUNG ELECTRONICS CO LTD

A cathode material for a fuel cell, the cathode material including a first metal oxide having a perovskite structure; and a second metal oxide having a spinel structure.

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Номер записи: 49
06-12-2012 дата публикации

Surface alloying of stainless steel

Номер: US20120308917A1
Автор: Gayatri Vyas Dadheech, Mahmoud H. Abd Elhamid
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

One aspect of the invention is a method of surface alloying stainless steel, In one embodiment, the method includes providing a stainless steel surface having an initial amount of iron and an initial amount of chromium; and preferentially removing iron from the stainless steel surface to obtain a surface having an amount of iron less than the initial amount of iron and an amount of chromium greater than the initial amount of chromium. Another aspect of the invention is a unitary stainless steel article.

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Номер записи: 50
13-12-2012 дата публикации

Fuel Cell Bypass Diode Structures and Attachment Methods

Номер: US20120315509A1
Автор: Arne Ballantine, Chockkalingam Karuppaiah, Matthias Gottmann
Принадлежит: Bloom Energy Corp

A fuel cell system includes a fuel cell stack which includes a plurality of fuel cells contacted in series by a plurality of interconnects. The various embodiments provide systems and methods for coupling a fuel cell stack with an electric bypass module within a hot zone. The bypass module may include elements for conducting a current between interconnects in a fuel cell stack and thereby bypass a failed fuel cell that has become a resistive parasitic load.

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Номер записи: 51
13-12-2012 дата публикации

Hydrogen passivation shut down system for a fuel cell power plant

Номер: US20120315558A1
Автор: Carl A. Reiser, Timothy W. Patterson, Jr., Tommy Skiba
Принадлежит: UTC Power Corp

The invention is a hydrogen passivation shut down system for a fuel cell power plant ( 10, 200 ). During shut down of the plant ( 10, 200 ), hydrogen fuel is permitted to transfer between an anode flow path ( 24, 24′ ) and a cathode flow path ( 38, 38′ ) while a low-pressure hydrogen generator ( 202 ) selectively generates an adequate amount of hydrogen and directs flow of the low-pressure hydrogen into the fuel cell ( 12′ ) downstream from a hydrogen inlet valve ( 52′ ) to maintain the fuel cell ( 12′ ) in a passive state.

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Номер записи: 52
03-01-2013 дата публикации

Durable platinum / multi-walled carbon nanotube catalysts

Номер: US20130005567A1
Автор: Arunachala Kannan, Jiefeng Lin
Принадлежит: Arizona Board of Regents of ASU

Platinum nanocatalysts on multi-walled carbon nanotubes (MWCNTs) functionalized with citric acid (CA) are disclosed, along with methods for the synthesis thereof.

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Номер записи: 53
10-01-2013 дата публикации

Method for shutting down indirect internal reforming solid oxide fuel cell

Номер: US20130011759A1
Автор: Susumu Hatada
Принадлежит: JX Nippon Oil and Energy Corp

Provided is a method for shutting down an indirect internal reforming SOFC, in which reliable reforming, prevention of anode oxidative degradation, fuel saving and time saving are possible. Reforming catalyst layer temperature T is measured, and FkCALC is calculated; when FkCALC≧FkE, T is measured, and FkCALC and FkMinCALC are calculated; if FkMinCALC≧FkE, then the flow rate of the fuel supplied to the reformer is set to FkE and the method moves on to step D; if FkCALC≦FkMinCALC<FkE, then C6 to C9 are performed in order; C6) the temperature of the reforming catalyst layer is increased; C7) T is measured, and FkCALC and FkMinCALC are calculated; C8) if FkCALC<FkE, then the flow rate of the fuel supplied to the reformer is set to FkMinCALC and the method returns to C6; C9) if FkCALC≧FkE, then the flow rate of the fuel supplied to the reformer is set to FkE and the method moves on to D; D) the method waits for the anode temperature to fall below an oxidative degradation temperature. FkE and the like are defined in the specification.

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Номер записи: 54
10-01-2013 дата публикации

Cathode Catalyst Layer, Manufacturing Method Thereof and Membrane Electrode Assembly

Номер: US20130011764A1
Автор: Haruna Kurata, Hiroyuki Morioka, Kenichiro Oota, Saori Okada
Принадлежит: Toppan Printing Co Ltd

According to the present invention, it is possible to improve the use ratio of active sites in a catalyst having oxygen reduction activity so as to provide a cathode catalyst layer and MEA for a fuel cell with high a level of power generation performance. The present invention includes a process of introducing a functional group into a surface of the catalyst 13 which has oxygen reduction activity and a process of blending the catalyst 13 with the functional group on the surface together with an electron conductive material and a proton conductive polymer electrolyte to prepare a catalyst ink for forming the cathode catalyst layer for the fuel cell.

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Номер записи: 55
31-01-2013 дата публикации

Startup control device and method for fuel cell system

Номер: US20130029238A1
Автор: Ik Jae Son, Jae Jun Ko, Jong Hyun Lee, Se Joon Im, Young Min Kim
Принадлежит: Hyundai Motor Co

The present invention provides a startup control device and method for a fuel cell system. The startup control device includes a concentration meter, a hydrogen feed rate controller, and a controller. The concentration meter measures the concentration of oxygen located in the anode of a fuel cell stack. The hydrogen feed rate controller is disposed at an inlet of the anode. The controller receives an oxygen concentration signal value from the concentration meter while controlling the hydrogen feed rate controller to adjust a hydrogen feed rate to the anode.

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Номер записи: 56
31-01-2013 дата публикации

Polymer electrolyte fuel cell and method for producing the same

Номер: US20130029246A1
Автор: Takashi Akiyama
Принадлежит: Panasonic Corp

A polymer electrolyte fuel cell includes a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane, an anode-side separator having a fuel flow channel for supplying fuel, and a cathode-side separator having an oxidant flow channel for supplying oxidant. The anode includes an anode catalyst layer and an anode diffusion layer, and the cathode includes a cathode catalyst layer and a cathode diffusion layer. At least one of the fuel flow channel and the oxidant flow channel has a plurality of parallel linear portions. The anode catalyst layer or the cathode catalyst layer has a plurality of belt-like first regions facing the linear portions and at least one second region between the adjacent first regions. The amount of catalyst in the first regions per unit area is on average larger than the amount of catalyst in the at least one second region per unit area.

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Номер записи: 57
28-02-2013 дата публикации

Nickel-based reforming catalyst

Номер: US20130053237A1
Автор: David Beijia Xu, Wen-Qing Xu
Принадлежит: Individual

The present invention relates unique pore structures in nickel supported on alumina with the negligible formation of macropores. Incorporation of additional elements stabilizes the pore structure of the nickel supported on alumina. Additional element(s) were then further added into the nickel-supported materials. These additional element(s) further stabilize the pore structures under heating conditions. The improvements of pore structure stability under heating conditions and negligible presence of macropores limit the sintering of nickel metal to a mechanism of impeded diffusion. The negligible presence of macropores also limits the deposition of alkali metal hydroxide(s)/carbonate(s) to the outer shell of the catalyst pellet. Both of the negligible presence of macropores and improvement in pore structure stability allow for prolonging the catalyst life of these nickel supported on alumina catalysts of the present invention for reforming hydrocarbons.

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Номер записи: 58
21-03-2013 дата публикации

Fuel cell system

Номер: US20130071767A1
Автор: Koji Katano
Принадлежит: Toyota Motor Corp

A fuel cell system equipped with a fuel cell, a pressure control unit, and an exhaust. The pressure control unit is provided on the fuel gas flow path in which the fuel gas to be supplied to the fuel cell flows, and it is able to control the pressure of the fuel gas to be supplied to the fuel cell. The exhaust valve is provided on the fuel exhaust gas flow path in which the fuel exhaust gas exhausted from the fuel cell flows, and when the valve is opened, at least a portion of the fuel exhaust gas can be exhausted to outside the fuel exhaust gas flow path. The pressure control unit is controlled, so that before opening the exhaust valve, the pressure of the fuel gas to be supplied to the fuel cell is decreased beyond what it was up to that point. Then, when the pressure of the fuel gas to be supplied to the fuel cell is the decreased first pressure, the exhaust valve is opened.

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Номер записи: 59
28-03-2013 дата публикации

Fuel cell system

Номер: US20130078542A1
Автор: Kazunori Fukuma, Yohei Hidaka
Принадлежит: Honda Motor Co Ltd

A control device of a fuel cell system sets a required output of a fuel cell stack that is required according to a present power demand and predicts the required output and the current according to the temperature of the fuel cell stack from a predetermined output state map that is preset. The control device sets an operation state quantity according to the predicted current and the temperature of the fuel cell stack from a predetermined operation state quantity map that is preset. The control device includes at least one of a pressure at an air supply port of air that is supplied to the cathode electrode of the fuel cell stack, a utilization rate of the air at the cathode electrode, a flow rate of a cooling medium that cools the fuel cell stack, and humidity of the air at the air supply port as the operation state quantity.

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Номер записи: 60
11-04-2013 дата публикации

Anode purge and drain valve strategy for fuel cell system

Номер: US20130089797A1
Автор: Daniel C. Di Fiore, Matthew A. Lang, Steven R. Falta
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A combined water drain and diluent gas purge valve routes fluid from the anode side of a fuel cell to the cathode inlet. When a purge of diluent gas is requested, the valve opens, draining any liquid present in the sump of a water separation device, for example. After the liquid has drained, the diluent gas is purged. An anode bleed model using fuel injector feedback can determine the amount of gas exiting the valve, and can request the valve to close once the required amount of diluent is purged. During operation, an amount of hydrogen may exit the valve. Hydrogen passing through the valve can be catalytically consumed once it reaches the cathode electrode, causing the cathode exhaust, and the fuel cell exhaust to have a reduced hydrogen content.

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Номер записи: 61
11-04-2013 дата публикации

Flow field plate with relief ducts for fuel cell stack

Номер: US20130089802A1
Автор: Albert Chiu, Robert Artibise
Принадлежит: DAIMLER AG, Ford Motor Co

Flow field plate constructions for bipolar plates are disclosed for use in fuel cell stacks that are subject to freezing temperatures. In designs having internal coolant flow fields and reactant backfeed ports, relief ducts are provided in the supporting walls surrounding the backfeed ports in order to allow for ice formation and thus prevent cracking of the plates.

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Номер записи: 62
18-04-2013 дата публикации

Composite having ion exchange function and preparation method and use thereof

Номер: US20130096214A1
Автор: Heng Zhang, Jun Wang, Junke Tang, Ping Liu, Yongming Zhang
Принадлежит: Shandong Huaxia Shenzhou New Material Co Ltd

A composite having ion exchange function, preparation method and use thereof are provided. The composite is formed by compounding ion exchange resin with fluorine-containing polymer porous membrane, wherein the nitrile groups in the ion exchange resin react with the nitrile groups grafted on the fluorine-contained polymer porous membrane to form triazine ring crosslinked structure. The composite has excellent mechanical property and gas impermeability, high ion exchange capacity and high electroconductivity.

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Номер записи: 63
25-04-2013 дата публикации

Fluorine containing ionomer composite with ion exchange function, preparation method and use thereof

Номер: US20130101921A1
Автор: Heng Zhang, Jun Wang, Junke Tang, Ping Liu, Yongming Zhang
Принадлежит: Individual

Provided is a composite which is comprised of one or more ion exchange resin(s) and a porous fluorine containing polymer membrane ( 2 ), wherein the porous membrane and the resin form a carbon-chain crosslinked structure, so that the film prepared from the composite is of good airtightness and stability, as well as high ion exchange capacity and high conductivity. The preparation method of the composite, the product prepared from this composite and the application thereof are also provided.

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Номер записи: 64
16-05-2013 дата публикации

Antistatic coating of fuel cell exhaust systems made of plastic

Номер: US20130120893A1
Автор: Axel Heise
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An exhaust system for a fuel cell vehicle that is made of plastic. An inner surface of flow pipes that are part of the exhaust system are coated with a conductive material. A conductive through bolt extends through the pipes to be electrically coupled to the conductive coating and chasse ground of the vehicle so that any electro-static charge build-up as a result of the flow of water vapor and exhaust gas through the pipe will be dissipated.

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Номер записи: 65
16-05-2013 дата публикации

Liquid water protected implementation of a gas quality hydrogen sensor into a fuel cell exhaust system

Номер: US20130122385A1
Автор: Oliver Maier
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A hydrogen sensor assembly is disclosed. A sensor is disposed within a slotted sleeve and a spiral shaped sensor housing surrounds the sensor within the sleeve. The spiral shape applies a centrifugal force to the fluid stream. This results in separation of liquid water from the fluid stream. The sleeve forms an internal inner perimeter of the spiral housing. The sensor housing includes a first opening to facilitate a fluid communication between the sensing element and a fluid stream through the slotted sleeve.

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Номер записи: 66
16-05-2013 дата публикации

Method of controlling thickness of form-in-place sealing for pem fuel cell stacks

Номер: US20130122390A1
Автор: Andrew P. Nowak, Richard H. Blunk
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A sealed assembly is made using sealant including a deformable spacer to control thickness without adversely impacting elasticity and sealing force. Deformable spacers (e.g., elastomer, polyolefin, etc.) are mixed with an elastomeric precursor material and dispensed onto an assembly component, such as a fuel cell bipolar plate, and the remaining component(s) are assembled by pressing against the deformable spacer to ensure a defined seal thickness. The precursor is cured to form a seal that is further compressed to provide an effective sealing force. The deformable spacers control the thickness of a sealed area and allow use of form-in-place sealing processes.

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Номер записи: 67
16-05-2013 дата публикации

Composition, composite prepared from the composition, electrode using the composition or the composite, composite membrane including the composite, and fuel cell including the composite membrane

Номер: US20130122395A1
Автор: Chan-ho Pak, Ki-Hyun Kim, Pil-Won Heo, Seong-Woo Choi
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A composition including a cross-linkable compound and at least one selected from compounds represented by Formula 1, a composite obtained from the composition, an electrode including the composition or the composite, a composite membrane including the composite, and a fuel cell including the composite membrane, wherein, in Formula 1, a and R are as defined in the specification.

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Номер записи: 68
23-05-2013 дата публикации

Method and a system for combined hydrogen and electricity production using petroleum fuels

Номер: US20130126038A1
Автор: AQIL Jamal, Thang Pham
Принадлежит: Saudi Arabian Oil Co

A SOFC system for producing a refined carbon dioxide product, electrical power and a compressed hydrogen product is presented. Introducing a hydrocarbon fuel and steam to the SOFC system, operating the SOFC system such that the steam-to-carbon molar ratio in the pre-reformer is in a range of from about 3:1 to about 4:1, the oxygen in the reformer combustion chamber is in excess, greater than 90% of the carbon dioxide produced during the process forms the refined carbon dioxide product are steps in the process. An alternative fueling station having a SOFC system is useful for fueling both electrical and hydrogen alternative fuel vehicles. Introducing steam and a hydrocarbon fuel, operating the alternative fueling station, coupling the alternative fuel vehicle to the alternative fueling station, introducing an amount of alternative fuel and decoupling the alternative fuel vehicle are steps in the method of use.

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Номер записи: 69
30-05-2013 дата публикации

Solid oxide fuel cell electrode systems and methods

Номер: US20130137012A1
Автор: Brad L. Kirkwood
Принадлежит: Boeing Co

A solid oxide fuel cell (SOFC) interconnect comprises a metal sheet with an air side and a fuel side in accordance with an embodiment of the present invention. The metal sheet comprises a metallic composite having a matrix. The matrix comprises a first metal. The metal sheet also comprises a plurality of discontinuous, elongated, directional reinforcement wires. The reinforcement wires comprise a second metal that is immiscible in the first metal. An oxidation protection layer is disposed on the air side of the metal sheet.

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Номер записи: 70
06-06-2013 дата публикации

Solid oxide fuel cell stack

Номер: US20130143137A1
Автор: Duk-Hyoung Yoon, Gyu-Jong Bae, Hyun Soh, Kwang-Jin Park, Sang-Jun Kong, Tae-Ho Kwon, Young-Sun Kwon
Принадлежит: Samsung SDI Co Ltd

A solid oxide fuel cell stack is disclosed. In one aspect, the solid oxide fuel cell stack includes unit cells, an external collector, a first stack collecting member, a cap, and a suspension member. The external collector contacts an outer periphery of each of the unit cells and electrically connects the unit cells to each other. The first stack collecting member is positioned to collect current from a distal unit cell. A cap is provided in one end of the distal unit cell. The suspension member has one side thereof suspended from the cap and the other side fixed to the first stack collecting member to distribute weight of the first stack collecting member. Structural stability of a stack collector may be maintained even at oxidizing atmosphere of high temperature when driving the fuel cell stack.

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Номер записи: 71
13-06-2013 дата публикации

Low Temperature Electrolytes for Solid Oxide Cells Having High Ionic Conductivity

Номер: US20130146469A1
Автор: Arvid E. Pasto, Gerard M. Ludtka, II D. Morgan Spears, Leonid V. Budaragin, Mark A. Deininger, Michael M. Pozvonkov, Paul D. Fisher
Принадлежит: C3 International LLC, UT Battelle LLC

Some embodiments of the present invention provide solid oxide cells and components thereof having a metal oxide electrolyte that exhibits enhanced ionic conductivity. Certain of those embodiments have two materials, at least one of which is a metal oxide, disposed so that at least some interfaces between the domains of the materials orient in a direction substantially parallel to the desired ionic conductivity.

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Номер записи: 72
13-06-2013 дата публикации

Freeze robust anode valve and passage design

Номер: US20130146795A1
Автор: Matthew A. Lang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A valve for a fuel cell system includes a valve housing having an inlet and an outlet formed therein. Each of the inlet and the outlet includes a passage formed therein to permit a fluid to flow through the valve housing. A movable member is disposed in the valve housing and is movable between an open position and a closed position. The movable member includes a sliding portion having a first flow regulator and a second flow regulator extending laterally outwardly therefrom. At least a portion of the first flow regulator is disposed in the passage of the inlet and at least a portion of the second flow regulator is disposed in the passage of the outlet when the movable member is in the closed position militating against a formation of ice across the entire opening of the inlet and the outlet.

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Номер записи: 73
13-06-2013 дата публикации

Method of estimating amiount of liquid water in fuel cell, method of estimating amount of liquid water discharged from fuel cell, estimation apparatus of liquid water amount in fuel cell and fuel cell system

Номер: US20130149628A1
Автор: Hiroaki Takeuchi, Hitoshi Hamada, Tomohiro Ogawa, Yasushi Araki
Принадлежит: Toyota Motor Corp

The procedure of the invention successively obtains an estimated value of amount of liquid water in a fuel cell during operation in each specified period by the following steps (a) to (d), thereby improving the detection accuracy of the water condition inside the fuel cell. The step (a) obtains a previous estimated value. The step (b) obtains a drainage rate that represents an amount of liquid water discharged from the fuel cell per unit time, based on the previous estimated value and a value representing a current flow rate of a reactive gas in the fuel cell. The step (c) multiplies the drainage rate by a period of obtaining the estimated value, so as to calculate an amount of liquid water discharged from the fuel cell for a specified duration. The step (d) determines a current estimated value, based on the amount of liquid water discharged from the fuel cell for the specified duration.

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Номер записи: 74
27-06-2013 дата публикации

Membrane electrode assembly for direct oxidation fuel cell and direct oxidation fuel cell using the same

Номер: US20130164650A1
Автор: Hideyuki Ueda, Hiroaki Matsuda
Принадлежит: Panasonic Corp

Disclosed is a membrane electrode assembly for a direct oxidation fuel cell, including an anode, a cathode, and an electrolyte membrane disposed therebetween. The anode includes an anode catalyst layer disposed on one principal surface of the electrolyte membrane, and an anode diffusion layer laminated on the anode catalyst layer. The anode catalyst layer includes a first particulate conductive carbon, an anode catalyst supported thereon, and a first polymer electrolyte. The cathode includes a cathode catalyst layer disposed on the other principal surface of the electrolyte membrane, and a cathode diffusion layer laminated on the cathode catalyst layer. The cathode catalyst layer includes a second particulate conductive carbon, a cathode catalyst supported thereon, and a second polymer electrolyte. The weight ratio M 1 of the first polymer electrolyte in the anode catalyst layer is higher than the weight ratio M 2 of the second polymer electrolyte in the cathode catalyst layer.

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Номер записи: 75
04-07-2013 дата публикации

Method and arrangement to control operating conditions in fuel cell device

Номер: US20130171533A1
Автор: Kim ÅSTRÖM
Принадлежит: Convion Oy

An exemplary arrangement and method for controlling operating conditions of a fuel cell device are disclosed. The fuel cell device having plural fuel cells, each including an anode side, a cathode side, an electrolyte between the anode side and the cathode side, and being arranted in a stack. The control arrangement includes at least one controllable electrical heater configured to produce controllable heat quantities, at least two controllers that control fuel cell quantities including at least a portion of air flowing to the fuel cells and heat applied to the stack environment. The controllable heat quantities and controllable fuel cell quantities are controlled to meet a target value. The fuel cell device includes a low level high speed controller configured to control at least one controllable electrical heater to operate the heater as a buffer for excess energy of the fuel cell device.

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Номер записи: 76
11-07-2013 дата публикации

Systems and processes of operating fuel cell systems

Номер: US20130177824A1
Автор: Erik Edwin Engwall, Jingyu Cui, John William Johnston, Mahendra Ladharam Joshi, Scott Lee Wellington
Принадлежит: Shell Oil Co

The present invention is directed to systems and processes for operating molten carbonate fuel cell systems. A process for operating the molten carbonate fuel cell includes providing a hydrogen-containing stream comprising molecular hydrogen to a molten carbonate fuel cell anode; heating a hydrocarbon stream, at least a majority of which is comprised of hydrocarbons that are liquid at 20° C. and atmospheric pressure, with a heat source comprising an anode exhaust from the molten carbonate fuel cell anode; contacting at least a portion of the heated hydrocarbon stream with a catalyst to produce a steam reforming feed comprising gaseous hydrocarbons, hydrogen, and at least one carbon oxide; separating at least a portion of the molecular hydrogen from the steam reforming feed; and providing at least a portion of the separated molecular hydrogen to the molten carbonate fuel cell anode as at least a portion of the stream comprising molecular hydrogen.

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Номер записи: 77
01-08-2013 дата публикации

Fuel cell

Номер: US20130196249A1
Автор: Masahiko Sato, Shuji Sato
Принадлежит: Honda Motor Co Ltd

A fuel cell includes a membrane electrode assembly and a separator. The separator includes a reactant gas inlet manifold, a reactant gas outlet manifold, a reactant gas channel, an inlet connection channel, an inlet buffer portion, an outlet buffer portion, and an outlet connection channel. A pressure drop through the inlet buffer portion is less than a pressure drop through the reactant gas channel when a reactant gas flows from the reactant gas inlet manifold to the reactant gas channel. A pressure drop through the outlet buffer portion is less than a pressure drop through the outlet connection channel when the reactant gas flows from the reactant gas channel to the reactant gas outlet manifold.

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Номер записи: 78
08-08-2013 дата публикации

Solid oxide fuel cell

Номер: US20130202982A1
Автор: Young Jung Kim
Принадлежит: Mim Ceramics Co Ltd

A solid oxide fuel cell includes unit cells, a first side plate and a second side plate respectively attached to opposite lateral surfaces of the unit cells, and a first electricity collector and a second electricity collector arranged between the unit cells. Each of the unit cells includes a support body block. The support body block includes a first surface, a second surface parallel to the first surface, a plurality of first channels and a plurality of second channels existing between the first channels. Each of the unit cells further includes air electrodes formed on inner surfaces of the first channels, fuel electrodes formed on inner surfaces of the second channels, a first electricity collecting layer formed on the first surface and electrically connected to the air electrodes and a second electricity collecting layer formed on the second surface and electrically connected to the fuel electrodes.

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Номер записи: 79
15-08-2013 дата публикации

Integrated natural gas powered sofc systems

Номер: US20130209904A1
Автор: Meilin Liu, Mingfei LIU, Ting He
Принадлежит: Georgia Tech Research Corp, Phillips 66 Co

The present invention discloses an integrated SOFC system powered by natural gas. Specifically, a SOFC-O cell is combined with a SOFC-H cell so as to take advantage of the high operating temperature and steam reforming capabilities of the SOFC-O cell as well as the higher fuel conversion efficiency of the SOFC-H cell.

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Номер записи: 80
15-08-2013 дата публикации

Reactant control method for a fuel cell system in idle-stop mode

Номер: US20130209906A1
Автор: Daniel I. Harris, John P. Salvador
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system and method for controlling the reactants in anode and cathode compartments of a fuel cell stack while the fuel cell stack is in a stand-by or idle-stop mode. The method includes identifying a voltage set-point for an average voltage of the fuel cells in the fuel cell stack or an overall stack voltage that is a minimum voltage acceptable for the idle-stop mode. The actual cell voltage average or stack voltage is compared to the voltage set-point to generate a voltage error. The voltage error is provided to a controller that does one or both of providing hydrogen gas to the anode compartment of the stack to increase the anode compartment pressure, which decreases the voltage error if the voltage is above the voltage set-point, or providing more cathode air to the cathode compartment of the fuel cell stack if the voltage error is below the voltage set-point.

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Номер записи: 81
22-08-2013 дата публикации

Nanotape and nanocarpet materials

Номер: US20130216811A1
Автор: Mohammed Naghi Ghasemi-Nehjad, Vamshi M. Gudapati
Принадлежит: UNIVERSITY OF HAWAII

Provided are nanostructure-containing nanotape materials. The materials may be incorporated at the interface between two other structures to provide strength and toughness at the interface. The materials may also be applied to a standalone structure to provide strength and toughness. Also provided are related methods of fabricating the nanotape materials, as well as gas diffusion membranes and fuel cells that include nanostructured materials.

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Номер записи: 82
22-08-2013 дата публикации

Electro-catalyst

Номер: US20130216923A1
Автор: Machiel Saakes, Matthias Wessling, Seyed Schwan Hosseiny
Принадлежит: Magneto Special Anodes BV

The present invention relates to an electro-catalyst M′ a IrbM c , wherein M′ is selected from the group consisting of Pt, Ta and Ru, and wherein the molar ratio a:b is within the range of 85:15 to 50:50 and the molar ratio a:c is within the range of 50:50 to 95:5, both calculated as pure metal and wherein M is selected from metals from Groups 3-15 of the Periodic System of Elements. The present invention further relates to an electrode comprising a support and the electro-catalyst. The present invention further relates to the use of the electro-catalyst and/or the electrode in electrochemical processes which comprise an oxygen reduction reaction (ORR), an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), a hydrogen oxidation reaction (HOR), a carbon monoxide oxidation reaction (COR) or a methanol oxidation reaction (MOR).

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Номер записи: 83
22-08-2013 дата публикации

Solid oxide fuel cell system

Номер: US20130216926A1
Автор: Katsuhisa Tsuchiya, Kiyotaka Nakano, Takuya Matsuo, Toshiharu Ooe, Toshiharu Otsuka, Tsukasa Shigezumi
Принадлежит: TOTO LTD

A solid oxide fuel cell system is disclosed. The solid oxide fuel cell system includes a cell stack having multiple adjacent fuel cells; a reformer that reforms raw gas and produces fuel gas supplied to the fuel cells; a combustion section that causes combustion of the fuel gas discharged from the fuel cells and heats the reformer with combustion heat of the fuel gas; an ignition device that ignites the combustion section; a combustion state confirmation device that senses that heating of the entire reformer has started using the advancement of flame transfer between fuel cells in the combustion section; and a controller programmed to start an operation of the system heating the reformer by using combustion heat from the combustion section and reaction heat from the partial oxidation reforming reaction (POX) in the reformer. During the period until the combustion state confirmation device senses that the heating of the entire reformer has started after the ignition device ignited the combustion section, the controller suppresses the amount of heat emitted by the partial oxidation reforming reaction in the reformer more than the amount of heat emitted after heating of the entire reformer has started.

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Номер записи: 84
29-08-2013 дата публикации

Solid oxide cell stack and method for preparing same

Номер: US20130224620A1
Автор: Jens Valdemar Thorvald Høgh, Kresten J.N.L. Jensen, Lars Mikkelsen, Martin Sogaard, Peter Vang Hendriksen, Wolff-Ragnar Kiebach
Принадлежит: Danmarks Tekniskie Universitet, Topsoe Fuel Cell AS

A method for producing and reactivating a solid oxide cell stack structure by providing a catalyst precursor in at least one of the electrode layers by impregnation and subsequent drying after the stack has been assembled and initiated. Due to a significantly improved performance and an unexpected voltage improvement this solid oxide cell stack structure is particularly suitable for use in solid oxide fuel cell (SOFC) and solid oxide electrolysing cell (SOEC) applications.

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Номер записи: 85
29-08-2013 дата публикации

Integrated sealing for fuel cell stack manufacturing

Номер: US20130224629A1
Автор: Charles A. Myers, Mohammad A. Enayetullah
Принадлежит: TRENERGI CORP

A seal and corresponding method of manufacture of stacks enabled by the physical properties of the seal are provided. In the instance of a fuel cell or other electrochemical stack, the seal provides low-cost manufacturing and reliable/durable operation in high temperature (e.g., 120° C. to 250° C.) and acidic environments. The seal provides an elastomeric material characteristic providing resiliency and flexibility, and a protective characteristic that protects the seal from the high temperature acidic environment, such as found in high temperature PEM fuel cells. The seal is affixed to a plate of a fuel cell stack assembly prior to assembly of the stack, such that there is no requirement to apply an adhesive seal, gasket, free flow to solid sealing material, or the like, to each plate during assembly of the fuel cell stack, or during a disassembly and re-assembly process.

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Номер записи: 86
29-08-2013 дата публикации

Solid oxide fuel cell and manufacturing method thereof

Номер: US20130224630A1
Автор: Duk-Hyoung Yoon, Gyu-Jong Bae, Hyun Soh, Kwang-Jin Park, Sang-Jun Kong, Tae-Ho Kwon, Young-Sun Kwon
Принадлежит: Samsung SDI Co Ltd

A solid oxide fuel cell and a manufacturing method thereof includes a unit cell and a cell coupling member. The unit cell includes a first electrode layer, an electrolyte layer surrounding an outer peripheral surface of the first electrode layer, and a second electrode layer surrounding the electrolyte layer so that one end portion of the electrolyte layer is exposed. The cell coupling member is coupled to the unit cell and includes a coupling member. A sealing member including at least two layers having different porosities is coated on at least one portion of the coupling member to seal the unit cell and the cell coupling member.

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Номер записи: 87
05-09-2013 дата публикации

Fuel cell stack

Номер: US20130230785A1
Автор: Eri TERADA, Kazuya Sasamoto
Принадлежит: Honda Motor Co Ltd

A fuel cell stack includes a stacked body, a first terminal plate, a first insulating plate, a first end plate, and a first insulating collar member. The first insulating collar member includes a first tubular portion and a first flange portion. The first tubular portion is provided in the first fluid manifold hole. The first flange portion is disposed at one end of the first tubular portion. Another end of the first tubular portion projects to an outside of the first fluid manifold hole and is in slidably contact with an inner circumferential surface of the first outer manifold member via an outer circumferential surface sealing member. The first flange portion is in contact with the first insulating plate via an end-face sealing member.

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Номер записи: 88
19-09-2013 дата публикации

Fuel cell separator material, and fuel cell stack using the same

Номер: US20130244129A1
Автор: Masayosi Huto, Norimitsu Shibuya, Tatsuo Hisada
Принадлежит: Daido Steel Co Ltd, JX Nippon Mining and Metals Corp

Provided are: a separator material for a fuel cell, in which a uniform first Au-plated layer having a thickness of 0.5 - 4 nm is formed on one surface of a metal thin plate and a uniform second Au-plated layer having a larger thickness than that of the first Au-plated layer is formed on the other surface of the metal base material, wherein the covering rate of each of the cross-sections of the first Au-plated layer and the second Au-plated layer is 80% or more as observed on a transmission electron microscope, and which can have excellent corrosion resistance even when the thicknesses of the Au-plated layers formed on the surface of the base material are small, and can be produced at reduced cost; and a separator for a fuel cell and a fuel cell stack, each of which is produced using the separator material.

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Номер записи: 89
03-10-2013 дата публикации

Fuel cell reforming system with carbon dioxide removal

Номер: US20130260268A1
Автор: Andrew Philip Shapiro, Bruce Philip Biederman, Irfan Saif Hussaini, Irina Spiry, Matthew Joseph Alinger, Robert James Perry
Принадлежит: General Electric Co

A power generation system includes a fuel cell including an anode that generates a tail gas. The system also includes a hydrocarbon fuel reforming system that mixes a hydrocarbon fuel with the fuel cell tail gas and to convert the hydrocarbon fuel and fuel tail gas into a reformed fuel stream including CO 2 . The reforming system further splits the reformed fuel stream into a first portion and a second portion. The system further includes a CO 2 removal system coupled in flow communication with the reforming system. The system also includes a first reformed fuel path coupled to the reforming system. The first path channels the first portion of the reformed fuel stream to an anode inlet. The system further includes a second reformed fuel path coupled to the reforming system. The second path channels the second portion of the reformed fuel stream to the CO 2 removal system.

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Номер записи: 90
03-10-2013 дата публикации

Preparation of nanostructured thin catalytic layer-based electrode ink

Номер: US20130260278A1
Автор: Chunxin Ji, Matthew Dioguardi, Sumeet Bhargava
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of making an electrode ink containing nanostructured catalyst elements is described. The method comprises providing an electrocatalyst decal comprising a carrying substrate having a nanostructured thin catalytic layer thereon, the nanostructure thin catalytic layer comprising nanostructured catalyst elements; providing a transfer substrate with an adhesive thereon; transferring the nanostructured thin catalytic layer from the carrying substrate to the transfer substrate; removing the nanostructured catalyst elements from the transfer substrate; providing an electrode ink solvent; and dispersing the nanostructured catalyst elements in the electrode ink solvent. Electrode inks, coated substrates, and membrane electrode assemblies made from the method are also described.

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Номер записи: 91
17-10-2013 дата публикации

Electrocatalyst for oxygen reduction including silver/silver halide composite, fuel cell including the same, and preparing method of the same

Номер: US20130273458A1
Автор: Chongmok LEE, Jun Ho Shim, Su-Jin Kim, Youngmi Lee
Принадлежит: Industry Collaboration Foundation of Ewha University

The present disclosure relates to an electrocatalyst for oxygen reduction including a silver/silver halide composite, a fuel cell including the electrocatalyst for oxygen reduction, and a method for preparing the electrocatalyst for oxygen reduction.

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Номер записи: 92
24-10-2013 дата публикации

Novel catalyst for oxygen reduction reaction in fuel cells

Номер: US20130280419A1
Автор: Kothandaraman Ramanujam, Scott A. Calabrese Barton, Vijayadurga Nallathambi
Принадлежит: Michigan State University MSU

A method for making a carbon-metal-nitrogen oxygen reducing cathode catalyst, the method comprising mixing a carbon source with a transition metal precursor to form a metal precursor loaded carbon substrate; adding a nitrogen precursor compound to the metal precursor loaded carbon substrate to form a carbon-metal-nitrogen precursor; and pyrolyzing the carbon-metal-nitrogen precursor in a closed vessel, thereby forming an oxygen reducing cathode catalyst. The carbon-metal-nitrogen catalyst requires no precious metal such as Pt, and also provides benefits such as controlled deposition of catalytically active nitrogenous compounds that can increase the catalytic activity of the catalyst when compared to gaseous deposition of nitrogen to the surface of the carbon support.

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Номер записи: 93
24-10-2013 дата публикации

Electrode for fuel cell, method of preparing same, membrane-electrode assembly and fuel cell system including same

Номер: US20130280636A1
Автор: Hee-Tak Kim, Jun-Young Kim, Kah-Young Song, Myoung-Ki Min
Принадлежит: Samsung SDI Co Ltd

Disclosed are an electrode for a fuel cell, a method of preparing the fuel cell electrode, a membrane-electrode assembly including the fuel cell electrode, and a fuel cell system including the fuel cell electrode. The electrode includes an electrode substrate having a conductive substrate and a layer-by-layer assembled multi-layer disposed on a side of the conductive substrate and a bilayer including a polymer electrolyte or a conductive nanoparticle, and a catalyst layer disposed on the electrode substrate.

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Номер записи: 94
24-10-2013 дата публикации

Compact fuel cell system

Номер: US20130280640A1
Автор: Jonathan Daniel O&#39;NEILL
Принадлежит: United Technologies Corp

An example fuel cell system includes a fuel cell power plant and a tank providing a volume that is configured to hold a fuel cell fluid. The fuel cell power plant is at least partially disposed within the volume.

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Номер записи: 95
31-10-2013 дата публикации

Warming feature for aircraft fuel cells

Номер: US20130288082A1
Автор: Conor Riordan, Dustin L. Kaap, Mallika Gummalla
Принадлежит: Hamilton Sundstrand Corp

A system and method for warming a fuel cell on an aircraft, the system includes at least one fuel cell. The fuel cell includes an anode and a cathode for creating thermal and electrical energy. A temperature sensor measures a first temperature of the fuel cell. A control unit is coupled to the temperature sensor. The control unit increases the first temperature to a second temperature in response to the first temperature being at least equal to a selected temperature threshold. Increasing of the first temperature is indicative of the control unit operating in a warming mode. The second temperature is higher than the selected temperature threshold.

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Номер записи: 96
31-10-2013 дата публикации

Fuel cell system with partial external reforming and direct internal reforming

Номер: US20130288145A1
Автор: Jeroen Valensa
Принадлежит: Modine Manufacturing Co

A fuel cell system includes a plurality of solid oxide fuel cells arranged in a fuel cell stack, an integrated heat exchanger/reformer operable to partially reform an anode feed prior to entry into the fuel cell stack, an anode tailgas oxidizer, and an offgas flow path extending away from an anode side of the fuel cell stack and having a first branch to selectively combine offgas from the anode side of the fuel cell stack with fuel from a fuel source to comprise the anode feed to the fuel cell stack and a second branch to supply offgas from the anode side of the fuel cell stack to the anode tailgas oxidizer. The integrated heat exchanger/reformer transfers heat from the oxidized offgas from the anode tailgas oxidizer to the anode feed before the anode feed enters the anode side of the fuel cell stack. The offgas from the anode tailgas oxidizer provides the sole heat source for the anode feed traveling through the integrated heat exchanger/reformer.

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Номер записи: 97
31-10-2013 дата публикации

Method and regulation apparatus for regulating a fuel cell or a fuel cell stack

Номер: US20130288147A1
Автор: Andreas Mai, Boris Iwanschitz, Hanspeter Kuratli, Markus Linder
Принадлежит: Hexis AG

In a method for regulating a fuel cell stack ( 1 ), a current-voltage characteristic of the fuel cell stack is detected and evaluated to determine an operating point of the fuel cell stack, wherein a current-voltage characteristic of the fuel cell stack ( 1 ) is detected at time intervals in operation whose gradient has a minimum, a characteristic value (R min ) for the minimum of the gradient is respectively determined from the detected current-voltage characteristic and a desired value for the operating point is determined by addition of a predefined offset value (R offset ) to the characteristic value, and wherein the fuel cell stack ( 1 ) is regulated by the desired value determined in this manner.

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Номер записи: 98
31-10-2013 дата публикации

Method for manufacturing membrane electrode assembly and solid polymer electrolyte fuel cell

Номер: US20130288152A1
Автор: Shigeki Hasegawa
Принадлежит: Toyota Motor Corp

The present invention relates a method for manufacturing a fuel cell. An object of the present invention is to provide a method for manufacturing a membrane electrode assembly capable of solving an electrical connection problem caused by uneven tube lengths and improving an output, and a solid polymer electrolyte fuel cell. The method for manufacturing the membrane electrode assembly of the present invention includes a seed catalyst layer forming process (1), a CNT growing process (2), a CNT entanglement promoting process (3), a catalyst carrying process (4), an ionomer arranging process (5), and a transferring (MEA conversion) process (6). According to the present invention, entanglement of adjacent CNTs can be promoted by the CNT entanglement promoting process (3) and therefore the electrical connection of the CNTs can be ensured. Thus, the output of the cell can be improved.

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Номер записи: 99
31-10-2013 дата публикации

Catalysts and process for producing same

Номер: US20130288891A1
Автор: Shinya Matsuo, Tadatoshi Murota
Принадлежит: Santoku Corp

A catalyst, a hydrocarbon steam reforming catalyst, and a method for producing the same are provided. A catalytic metal containing at least Ni is supported on a composite oxide containing R, Zr, and oxygen, at a composition of not less than 10 mol % and not more than 90 mol % of R, not less than 10 mol % and not more than 90 mol % of Zr, and not less than 0 mol % and not more than 20 mol % of M (M: elements other than oxygen, R, and Zr), with respect to the total of the elements other than oxygen being 100 mol %, wherein the composite oxide has a specific surface area of 11 to 90 m 2 /g, and the largest peak in the wavelength range of 200 to 800 cm −1 of Raman spectrum with a full width at half maximum of 20 to 72 cm −1 .

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Номер записи: 100