公开(公告)号：US09761894B2

公开(公告)日：2017-09-12

申请号：US14323095

申请日：2014-07-03

Applicant: Daimler AG ,  Ford Motor Company

Inventor： Alireza Roshanzamir

IPC: H01M8/04 ,  H01M8/24 ,  H01M8/04029 ,  H01M8/0267 ,  H01M8/1018 ,  H01M8/0232 ,  H01M8/0247

CPC classification number: H01M8/04029 ,  H01M8/0232 ,  H01M8/0247 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/241 ,  H01M8/2457 ,  H01M2008/1095

Abstract: Certain fuel cell designs employ bipolar plate assemblies with internal coolant flow fields which comprise a coolant channel region and transition regions adjacent the coolant channel region. The temperature and/or pressure drop, and hence flow, of coolant over the coolant channel region can be non-uniform however, and this can have an adverse effect on cell performance. The coolant flow and temperature distribution can be modified and made more uniform by inserting an appropriate non-uniform porous insert in one or more of the coolant transition regions.

公开(公告)号：US20170229719A1

公开(公告)日：2017-08-10

申请号：US15019152

申请日：2016-02-09

Applicant: GM Global Technology Operations LLC

Inventor： Yeh-Hung Lai ,  Anita Luong

IPC: H01M8/0286 ,  H01M8/0247 ,  H01M8/241 ,  H01M8/2475 ,  H01M8/242 ,  H01M8/0284 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/2457 ,  H01M8/0258 ,  H01M8/2483

CPC classification number: H01M8/0286 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0284 ,  H01M8/0297 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/2404 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2457 ,  H01M8/2475 ,  H01M8/2483 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02T90/32

Abstract: A fuel cell stack with a bipolar plate assembly and a method of assembling a fuel cell stack such that reactant or coolant leakage is reduced. Bipolar plates within the system include reactant channels and coolant channels that are fluidly coupled to inlet and outlet flowpaths, all of which are formed within a coolant-engaging or reactant-engaging surface of the plate. One or more thin or low aspect-ratio microseals are also formed on a metal bead that is integrally-formed on a surface of the plate and is used to help reduce leakage by maintaining fluid isolation of the reactants and coolant as they flow through their respective channels and flowpaths that are defined between adjacently-placed plates. By delaying the activation of the adhesive bond formed between the microseal and an adjacent surface within the fuel cell until after the aligned cell assemblies have been compressively supported in a stack housing, the ability of the microseal and its adjacent surface to avoid reactant or coolant leakage is enhanced.

公开(公告)号：US20170229717A1

公开(公告)日：2017-08-10

申请号：US15019128

申请日：2016-02-09

Applicant: GM Global Technology Operations LLC

Inventor： Anita Luong ,  Yeh-Hung Lai

IPC: H01M8/0276 ,  H01M8/1004 ,  H01M8/0284 ,  H01M8/1007 ,  H01M8/2404 ,  H01M8/242 ,  H01M8/2475 ,  H01M8/2457 ,  H01M8/0247 ,  H01M8/0286

CPC classification number: H01M8/0278 ,  H01M8/0247 ,  H01M8/0284 ,  H01M8/0286 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/2404 ,  H01M8/242 ,  H01M8/2457 ,  H01M8/2475 ,  H01M2250/20 ,  Y02E60/521

Abstract: A sealing assembly for a fuel cell system and a method of assembling a fuel cell system. The system is made up of numerous fluid-conveying plate assemblies stacked such that seals are placed between adjacent plates. Microseals are disposed on one or both of metal beads and subgaskets such that when fuel cells comprising such metal beads, microseals and gaskets are aligned and compressed into a housing of a fuel cell stack, the leakage impacts of any misalignment in the cells is reduced. In particular, variations in microseal design including geometric and material properties such as microseal aspect ratio, Poisson's Ratio and as-deposited shape may be tailored to provide optimum sealing between facing metal beads and subgaskets.

公开(公告)号：US09698432B2

公开(公告)日：2017-07-04

申请号：US14122390

申请日：2012-05-25

Applicant: Remi Vincent ,  Jean-Philippe Poirot-Crouvezier ,  Pascal Schott

Inventor： Remi Vincent ,  Jean-Philippe Poirot-Crouvezier ,  Pascal Schott

IPC: H01M8/02 ,  H01M8/10 ,  H01M8/24 ,  H01M8/0247 ,  H01M8/021 ,  H01M8/0254 ,  H01M8/0267 ,  H01M8/0297 ,  H01M8/241 ,  H01M8/1007

CPC classification number: H01M8/0247 ,  H01M8/021 ,  H01M8/0254 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0297 ,  H01M8/1007 ,  H01M8/241

Abstract: A fuel cell includes three membrane-electrode assemblies. and first and second bipolar metal plates interposed between the membrane-electrode assemblies. Each of the bipolar plates comprises two metal sheets facing a respective membrane-electrode assembly and fixedly attached by welds. The two metal sheets comprise successive guiding channels for guiding gas extending in a common longitudinal direction. The guiding channels are distributed in a transversal direction The welds are made in bottoms of the guiding channel and include welds of the first bipolar plate and welds of the second bipolar plate. Some of the welds of the first bipolar plate are not superimposed on the welds of the second bipolar plate and are offset longitudinally and transversally relative to the welds of the second bipolar plate.

公开(公告)号：US09680164B2

公开(公告)日：2017-06-13

申请号：US14405831

申请日：2013-05-28

Applicant: MICO CO., LTD.

Inventor： Song Ho Choi ,  Sang Pil Park

IPC: H01M8/00 ,  H01M8/04 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/2465 ,  H01M8/0245 ,  H01M8/2483 ,  H01M8/124

CPC classification number: H01M8/0247 ,  H01M8/0245 ,  H01M8/0258 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2465 ,  H01M8/2483 ,  H01M2008/1293

Abstract: Provided are a current collector for a fuel cell and a stack structure having the same. The fuel cell includes an electrolyte layer, and an air electrode layer and a fuel electrode layer on both surfaces of the electrolyte layer and generates electricity, and the current collector includes an even surface configured to electrically surface-contact with the air electrode layer or the fuel electrode layer; and a plurality of openings punched so that air or a fuel gas directly contacts with the air electrode layer or the fuel electrode layer.

公开(公告)号：US20170141412A1

公开(公告)日：2017-05-18

申请号：US15351829

申请日：2016-11-15

Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives

Inventor： Jean-Philippe POIROT-CROUVEZIER

IPC: H01M8/0258 ,  H01M8/0247

CPC classification number: H01M8/0258 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0254 ,  H01M8/026 ,  H01M8/0267 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

Abstract: An electrochemical cell includes a membrane electrode assembly and a bipolar plate. The membrane electrode assembly includes a proton exchange membrane and first and second electrodes. The bipolar plate includes conductive sheets, coolant flow channels are made between the conductive sheets. An outer face of a conductive sheet includes reactant flow channels and a first rib extending on the side of the reactant flow channels. A gasket extends on the first rib. The bipolar plate includes an intermediate zone extending between the first rib and the first electrode, a first band in which the sheets have complementary shapes nested one in the other over the entire length of a coolant flow channel, and a second band in which a sheet includes reliefs in contact with the membrane electrode assembly.

公开(公告)号：US09627698B2

公开(公告)日：2017-04-18

申请号：US14407358

申请日：2013-06-11

Applicant: HTCERAMIX S.A.

Inventor： Zacharie Wuillemin

IPC: H01M8/04 ,  H01M8/04082 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0254 ,  C25B15/08 ,  H01M8/04014 ,  H01M8/1246 ,  C25B1/08 ,  C25B9/20 ,  H01M8/2425 ,  H01M8/124

CPC classification number: H01M8/04201 ,  C25B1/08 ,  C25B9/203 ,  C25B15/08 ,  H01M8/0247 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/04014 ,  H01M8/04089 ,  H01M8/04276 ,  H01M8/1231 ,  H01M8/1246 ,  H01M8/2425 ,  H01M8/2483 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/366

Abstract: The gas distribution element for a fuel cell or an electrolyzing device including a first layer and a second layer, the first and second layers are disposed with a gas distribution structure forming a pattern for a fluid flow of a first reactant fluid. The second layer is a homogenizing element, which has first apertures, wherein at least some of the first apertures have a length and a width, with the length being greater than the width and the length extending in a transverse direction to the main direction of fluid flow.

公开(公告)号：US20170098837A1

公开(公告)日：2017-04-06

申请号：US15271669

申请日：2016-09-21

Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives

Inventor： Fredy-Intelligent NANDJOU DONGMEZA ,  Jean-Philippe Poirot-Crouvezier ,  Fabrice Micoud ,  Mathias Gerard ,  Christophe Robin ,  Lara Jabbour ,  Remi Vincent

IPC: H01M8/0297 ,  C25B9/06 ,  C25B15/02 ,  H01M8/0202

CPC classification number: H01M8/0297 ,  C25B9/063 ,  C25B15/02 ,  H01M8/0202 ,  H01M8/0247 ,  H01M8/0254 ,  H01M8/0265 ,  H01M8/0267 ,  H01M8/04305 ,  H01M8/0432 ,  H01M8/04574 ,  H01M8/04641 ,  H01M8/04701 ,  H01M8/241 ,  Y02P70/56

Abstract: The invention relates to a method for determining a spatial distribution (Rx,yf) of a parameter of interest (R) representative of the electrical power production of an electrochemical cell, comprising steps in which a spatial distribution (Rx,yf) of the parameter of interest (R) is determined depending on the spatial distribution (Qx,ye) of a second thermal quantity (Qe) estimated beforehand from the spatial distribution (Tx,yc) of a set-point temperature (Tc) and from the spatial distribution (Dx,yr) of a first thermal quantity (Dr).

公开(公告)号：US20170077527A1

公开(公告)日：2017-03-16

申请号：US15311447

申请日：2015-06-01

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Junko IMAMURA ,  Kiyonori TOKUNO ,  Taku KAGAWA ,  Masanari KIMOTO ,  Yasuhiro MASAKI

IPC: H01M8/0245 ,  H01M8/1018 ,  H01M8/0247 ,  H01M8/0232

CPC classification number: H01M8/0245 ,  C22C14/00 ,  H01M8/0206 ,  H01M8/0232 ,  H01M8/0247 ,  H01M8/1018 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02E60/521 ,  Y02T90/32

Abstract: A titanium material comprises: a plate-like matrix made of titanium or a titanium alloy and having a rough surface on which minute protrusions are formed; a surface oxide coating film formed along the rough surface and containing one or more titanium oxides; and a tip covering formed on the surface oxide coating film in an area comprising a tip of the minute protrusion and containing one or more noble metals. A composition ratio of TiO [ITiO/(ITi+ITiO)×100] determined from maximum intensity ITiO of diffraction peaks of TiO and maximum intensity ITi of diffraction peaks of metal Ti in an X-ray diffraction intensity curve of the surface oxide coating film is more than or equal to 0.5%.

Abstract translation: 钛材料包括：由钛或钛合金制成的具有粗糙表面的板状基体，其上形成有微小的突起; 沿着粗糙表面形成并含有一种或多种氧化钛的表面氧化物涂膜; 以及在包括微小突起的尖端并包含一种或多种贵金属的区域中的表面氧化物涂膜上形成的尖端覆盖物。 由表面氧化物涂膜的X射线衍射强度曲线中金属Ti衍射峰的最大强度ITiO和TiO的衍射峰的最大强度ITi确定TiO [ITiO /（ITi + ITiO）×100]的组成比 大于等于0.5％。

公开(公告)号：US20170025690A1

公开(公告)日：2017-01-26

申请号：US15301287

申请日：2015-04-02

Applicant: Volkswagen AG

Inventor： Benno Andreas-Schott ,  Markus Ritter

IPC: H01M8/04089 ,  H01M8/0258 ,  H01M8/0267

CPC classification number: H01M8/04089 ,  H01M8/0202 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/241 ,  H01M2008/1095

Abstract: A bipolar plate for a fuel cell, including a profiled anode plate and a profiled cathode plate each having an active region and two distributor regions with an anode gas main port for feeding and discharging fuel, a cathode gas main port for feeding and discharging oxidation agents, and a coolant main port for feeding and discharging coolant, these being arranged along a side edge. The bipolar plate includes channels connecting the operator media main ports to the active region, and the distributor regions including at least one overlap section in which the channels intersect one another in a non-fluidically connecting manner. The cathode gas main port is arranged between the anode gas main port and the coolant main port, cathode channels extend linearly from the port at least across the distributor region of the bipolar plate and, in a first overlap section, anode channels, and cathode channels intersect one another and form an angle of between 0° and 90°.

Abstract translation: 一种用于燃料电池的双极板，包括异型阳极板和异型阴极板，每个阳极板和异型阴极板均具有有源区和两个具有用于供给和排出燃料的阳极气体主端口的分配器区域，用于进料和排出氧化剂的阴极气体主端口 ，以及用于供给和排出冷却剂的冷却剂主端口，这些沿着侧边缘布置。 双极板包括将操作者介质主端口连接到有源区域的通道，并且分配器区域包括至少一个重叠部分，其中通道以非流体连接的方式彼此相交。 阴极气体主端口布置在阳极气体主端口和冷却剂主端口之间，阴极通道至少穿过双极板的分配器区域从端口线性延伸，并且在第一重叠部分中，阳极通道和阴极通道 彼此相交并形成0°至90°之间的角度。