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1. 发明申请

WO2005018015A3 SPATIALLY VARYING DIFFUSION MEDIA AND DEVICES INCORPORATING THE SAME 审中-公开
标题翻译：空间变化扩散介质和装置同时进行
公开(公告)号：WO2005018015A3
公开(公告)日：2005-05-06
申请号：PCT/US2004017841
申请日：2004-06-07
申请人： GEN MOTORS CORP , O'HARA JEANETTE E , TRABOLD THOMAS A , SCHOENEWEISS MICHAEL R , ROTH JOERG
发明人： O'HARA JEANETTE E , TRABOLD THOMAS A , SCHOENEWEISS MICHAEL R , ROTH JOERG
IPC分类号： H01M8/02 , H01M8/04 , H01M4/86 , H01M4/96
CPC分类号： H01M8/0245 , H01M8/0234 , H01M8/0239 , H01M8/0241 , H01M8/04119 , H01M8/04291
摘要： A diffusion media and a scheme for spatially varying the parameters of the diffusion media to address issues related to water management in electrochemical cells and other devices employing the diffusion media are provided. A device is configured to convert a hydrogenous fuel source to electrical energy and comprises an electrochemical conversion assembly, first and second reactant inputs, first and second product outputs, and first and second diffusion media. The device is configured such that a mesoporous layer is carried along at least a portion of a major face of one of the first and second diffusion media substrates. The mesoporous layer comprises a hydrophilic carbonaceous component and a hydrophobic component. The mesoporous layer occupies a substantially greater portion of one of the high or low H2O regions of the device, relative to the other of the high or low H2O region of the device.
摘要翻译：提供扩散介质和用于空间变化扩散介质的参数以解决与使用扩散介质的电化学电池中的水管理有关的问题的方案。一种装置被配置为将氢燃料源转换成电能并且包括电化学转化组件，第一和第二反应物输入，第一和第二产物输出以及第一和第二扩散介质。该器件被配置成使得介孔层沿着第一和第二扩散介质衬底之一的主面的至少一部分被携带。介孔层包含亲水性碳质组分和疏水组分。介孔层相对于器件的高或低H 2 O区域中的另一个占据器件的高或低H 2 O区域中的一个的大部分。

2. 发明申请

WO2004066417A2 QUALITY CONTROL METHODS FOR GAS DIFFUSION MEDIA 审中-公开
标题翻译：气体扩散介质的质量控制方法
公开(公告)号：WO2004066417A2
公开(公告)日：2004-08-05
申请号：PCT/US2004000893
申请日：2004-01-13
申请人： GEN MOTORS CORP , ROTH JOERG
发明人： ROTH JOERG
IPC分类号： G01N13/04 , G01N15/08 , H01M
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.
摘要翻译：本发明公开了可以定性地评价用于燃料电池组件的扩散介质的质量的各种方法。可以计算扩散介质的材料常数，内部接触角，高能和低能隙的比率和外部接触角，并与预定标准进行比较，以评估扩散介质的质量。

3. 发明申请

WO2005020347A3 DIFFUSION MEDIA FOR USE IN A PEM FUEL CELL 审中-公开
标题翻译：扩散介质用于PEM燃料电池
公开(公告)号：WO2005020347A3
公开(公告)日：2007-01-18
申请号：PCT/US2004025159
申请日：2004-08-04
申请人： GEN MOTORS CORP , MATHIAS MARK F , ROTH JOERG , BUDINSKI MICHAEL K
发明人： MATHIAS MARK F , ROTH JOERG , BUDINSKI MICHAEL K
IPC分类号： C25B11/00 , H01M20060101 , H01M4/94 , H01M4/96 , H01M8/04 , H01M8/10
CPC分类号： H01M8/0247 , H01M8/0232 , H01M8/0234 , H01M8/04291 , H01M2008/1095
摘要： A diffusion media is provided for implementation with a PEM fuel cell. The diffusion media is a permeable sheet that is rigid along a transverse axis, flexible along a lateral axis and has a substantially incompressible thickness. The diffusion media is able to be mass produced in large sheets and rolled along the lateral axis for transport and storage. The rigidity of the transverse axis is provided by either inclusion of larger fibers or metallic strips aligned in the transverse direction and prevents tenting of the diffusion media into flow channels of the PEM fuel cell. The diffusion media is water and gas permeable and electrically conductive.
摘要翻译：提供扩散介质用于用PEM燃料电池实现。扩散介质是沿着横向轴线是刚性的可渗透片材，沿着横向轴线是柔性的并且具有基本不可压缩的厚度。扩散介质能够以大片材大量生产并且沿着横向轴轧制以便运输和储存。横向轴线的刚性由在横向上排列的较大的纤维或金属带的包含提供，并且防止扩散介质向PEM燃料电池的流动通道中隆起。扩散介质是水和气体可渗透和导电的。

4. 发明申请

WO2004066416A3 METHOD OF MAKING A GAS DIFFUSION MEDIA AND QUALITY CONTROLS FOR SAME 审中-公开
标题翻译：制造气体扩散介质的方法和质量控制
公开(公告)号：WO2004066416A3
公开(公告)日：2005-12-15
申请号：PCT/US2004000794
申请日：2004-01-13
申请人： GEN MOTORS CORP , ROTH JOERG
发明人： ROTH JOERG
IPC分类号： G01N13/04 , G01N15/08 , H01M2/02 , G01N33/00
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media (30,32) for use in a fuel cell assembly (20) can be qualitatively evaluated. The material constant (60), an internal contact angle (61), a ratio of high and low energy pores (62d,62e), and an external contact angle (63) can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the media.
摘要翻译：本发明公开了可以定性地评价用于燃料电池组件（20）的扩散介质（30,32）的质量的各种方法。可以对扩散介质计算材料常数（60），内部接触角（61），高能和低能量孔（62d，62e）和外部接触角（63）的比例，并与预定标准评估媒体的质量。

5. 发明申请

WO2005036669A3 LOW COST GAS DIFFUSION MEDIA FOR USE IN PEM FUEL CELLS 审中-公开
标题翻译：低成本气体扩散介质用于PEM燃料电池
公开(公告)号：WO2005036669A3
公开(公告)日：2006-04-13
申请号：PCT/US2004024498
申请日：2004-07-29
申请人： GEN MOTORS CORP
发明人： MATHIAS MARK F , ROTH JOERG , SCHOENEWEISS MICHAEL R , FLEMING GERALD
IPC分类号： H01M4/86 , H01M4/88 , H01M8/10 , D21H13/00 , H01M4/96
CPC分类号： C04B35/521 , C04B35/83 , C04B2235/5256 , H01M4/8807 , H01M4/881 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/1007 , Y02P70/56
摘要： A gas diffusion media and method of making are provided including the formation of a carbon fiber paper which is heated to a carbonization temperature without exceeding a graphitization temperature. The discovery that a final high temperature heat treatment step in the graphitization temperature zone is not necessary to make effective gas diffusion media for PEM fuel cells greatly reduces the cost associated with the high temperature final heat treatment and also allows for the processing of the diffusion media in a roll.
摘要翻译：提供气体扩散介质和制造方法，包括形成碳纤维纸，其被加热到碳化温度而不超过石墨化温度。发现石墨化温度区域中的最终高温热处理步骤不需要为PEM燃料电池制造有效的气体扩散介质大大降低了与高温最终热处理相关的成本，并且还允许处理扩散介质卷

6. 发明申请

WO2005105323A3 PREPARATION OF PATTERNED DIFFUSION MEDIA 审中-公开
标题翻译：图形扩散介质的制备
公开(公告)号：WO2005105323A3
公开(公告)日：2006-09-14
申请号：PCT/US2005002851
申请日：2005-02-02
申请人： GEN MOTORS CORP
发明人： JI CHUNXIN , SCHOENEWEISS MICHAEL R , MATHIAS MARK F , ROTH JOERG
IPC分类号： B05D3/02 , B05D1/32 , B05D5/00 , D21H13/50 , D21H19/20 , D21H19/66 , D21H19/72 , D21H19/84 , H01M4/86 , H01M4/88 , H01M4/96 , H01M8/00 , H01M8/10
CPC分类号： H01M8/0239 , D21H13/50 , D21H19/20 , D21H19/66 , D21H19/72 , D21H19/84 , H01M4/8605 , H01M8/0234 , H01M8/0245 , H01M8/1007
摘要： Gas diffusion media for use in fuel cells are provided that contain a pattern of deposited hydrophobic polymer such that less than 100% of the surface of the diffusion media is covered with hydrophobic polymer. The media are made by first wetting a sheet of carbon fiber paper in an aqueous emulsion of the hydrophobic polymer. The wetted sheet is contacted with a pattern member containing one or more openings oriented to correspond to a predetermined or desired pattern of hydrophobic polymer deposition. While still in contact with the pattern member, the sheet is heated or otherwise treated to cause evaporation of the water from the sheet. Evaporation while in contact with the pattern member takes place in such a way that hydrophobic polymer is concentrated in the sheet at the openings of the pattern member by the process of evaporation.
摘要翻译：提供了用于燃料电池的气体扩散介质，其包含沉积的疏水性聚合物的图案，使得少于100％的扩散介质的表面被疏水聚合物覆盖。介质通过首先在疏水性聚合物的水乳液中润湿碳纤维纸片而制成。润湿的片材与包含一个或多个开口的图案构件接触，该开口取向成对应于预定或期望的疏水性聚合物沉积图案。在仍然与图案构件接触的同时，片材被加热或以其它方式处理以引起水从片材的蒸发。在与图案部件接触的同时进行蒸发，使得疏水性聚合物通过蒸发过程在图案部件的开口处集中在片材中。

7. 发明申请

WO2006069249A3 GAS DIFFUSION ELECTRODE AND METHOD OF MAKING THE SAME 审中-公开
标题翻译：气体扩散电极及其制造方法
公开(公告)号：WO2006069249A3
公开(公告)日：2006-12-07
申请号：PCT/US2005046625
申请日：2005-12-20
申请人： GINER ELECTROCHEMICAL SYSTEMS , LIU HAN , MCDONALD ROBERT C , MCCALLUM THOMAS J , LACONTI ANTHONY B , FORCHIONE JOHN , O'HARA JEANETTE , ROTH JOERG
发明人： LIU HAN , MCDONALD ROBERT C , MCCALLUM THOMAS J , LACONTI ANTHONY B , FORCHIONE JOHN , O'HARA JEANETTE , ROTH JOERG
IPC分类号： B32B3/26 , H01M4/80
CPC分类号： H01M8/0245 , H01M4/8605 , H01M4/8657 , H01M4/8807 , H01M4/8817 , H01M4/8828 , H01M8/0232 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0271 , H01M8/1007 , H01M2004/021 , Y02P70/56 , Y10T428/249962 , Y10T428/249981 , Y10T428/30
摘要： A gas diffusion electrode and method of making the same. According to one embodiment, the electrode comprises a support layer, a first cushioning layer positioned on top of the support layer, a second cushioning layer positioned on top of the first cushioning layer, and a catalyst layer positioned on top of the second cushioning layer. The support layer is a mechanically stable, electrically-conductive, gas porous substrate, such as carbon fiber paper. The first cushioning layer, which is also gas porous, comprises a non-woven mat of electrically-conductive, chemically-inert fibers, preferably carbon nanofibers, bound together with a polymeric binder, such as polytetrafluoroethylene. The second cushioning layer is similar to the first cushioning layer, except that carbon black or a similar electrically-conductive, chemically-inert particulate material is included in addition to or instead of the fibrous material for the purpose of fine-tuning pore size.
摘要翻译：气体扩散电极及其制造方法。根据一个实施例，电极包括支撑层，位于支撑层顶部的第一缓冲层，位于第一缓冲层顶部的第二缓冲层和位于第二缓冲层顶部的催化剂层。支撑层是机械稳定的，导电的气体多孔基底，例如碳纤维纸。也是气体多孔的第一缓冲层包括与聚合物粘合剂如聚四氟乙烯结合在一起的导电的，化学惰性的纤维，优选碳纳米纤维的无纺垫。第二缓冲层类似于第一缓冲层，除了除了或代替纤维材料之外还包括炭黑或类似的导电的，化学惰性的颗粒材料以便微调孔径。

8. 发明申请

WO2004049641A2 METHOD FOR DATA TRANSMISSION BY MEANS OF A FIELD BUS OF AN AUTOMATION DEVICE 审中-公开
标题翻译：方法用于传输数据的自动化系统的现场总线
公开(公告)号：WO2004049641A2
公开(公告)日：2004-06-10
申请号：PCT/EP0313273
申请日：2003-11-26
申请人： FLOWTEC AG , ROTH JOERG
发明人： ROTH JOERG
IPC分类号： H04L12/407 , H04L12/40
CPC分类号： H04L12/407 , G05B2219/25014 , H04L2012/40208 , H04L2012/4026
摘要： The invention relates to a method for data transmission by means of a field bus of an automation device to which several automation devices (D1, D2, D3 , V1, V2, V3 ) are connected. The inventive field bus (FB) comprises several data channels to which said field devices can simultaneously have access.
摘要翻译：在用于通过自动化系统的一个现场总线发送数据时，向所述多个现场设备的方法的D1，D2，D3 ...，V1，V2，V3 ...连接，具有现场总线FB多个数据信道在其上的同时，现场设备访问。

9. 发明专利

DE112004001393B4 Brennstoffzelle enthaltend ein räumlich variierendes Diffusionsmedium und Verwendung einer solchen Brennstoffzelle in einem Fahrzeug 未知
公开(公告)号：DE112004001393B4
公开(公告)日：2013-08-22
申请号：DE112004001393
申请日：2004-06-07
申请人： GEN MOTORS CORP
发明人： O'HARA JEANETTE E , TRABOLD THOMAS A , SCHOENEWEISS MICHAEL R , ROTH JOERG
IPC分类号： H01M8/02 , H01M4/96 , H01M8/04 , H01M8/10
摘要： Brennstoffzelle, die derart ausgebildet ist, dass ein wasserstoffhaltiger Brennstoff in elektrische Energie umgewandelt wird, wobei die Brennstoffzelle umfasst: – eine Anordnung für elektrochemische Umwandlung, die derart ausgebildet ist, dass die Brennstoffzelle in ein erstes und zweites Strömungsfeldgebiet unterteilt wird; – einen Eingang für einen ersten Reaktanden und einen Ausgang für ein erstes Produkt in Verbindung mit dem ersten Strömungsfeldgebiet; – ein erstes Diffusionsmedium, das ein poröses Diffusionsmediumsubstrat umfasst, das derart ausgebildet ist, dass mehrphasige Reaktanden zwischen dem ersten Strömungsfeldgebiet und der Anordnung für elektrochemische Umwandlung durchgelassen werden; – einen Eingang für einen zweiten Reaktanden und einen Ausgang für ein zweites Produkt in Verbindung mit dem zweiten Strömungsfeldgebiet; und ...

10. 发明专利

DE112004001386B4 未知
公开(公告)号：DE112004001386B4
公开(公告)日：2008-09-18
申请号：DE112004001386
申请日：2004-06-07
申请人： GEN MOTORS CORP
发明人： O'HARA JEANETTE , ROTH JOERG , LIU HAN
IPC分类号： H01M8/02 , H01M4/88 , H01M4/96 , H01M8/04 , H01M8/10
摘要： A diffusion media and a process for its fabrication are provided for addressing issues related to water management in electrochemical cells and other devices employing the diffusion media. In accordance with one embodiment of the present invention, a process for fabricating a diffusion media is provided. A diffusion media substrate is provided comprising a porous fibrous matrix defining first and second major faces. The substrate comprises an amount of carbonaceous material sufficient to render the substrate electrically conductive. A mesoporous layer is applied along at least a portion of one of the first and second major faces of the substrate. The mesoporous layer is applied to the substrate by providing a coating comprising a hydrophobic component, a hydrophilic component, and a pore forming agent. The substrate is free of fluorinated polymers outside of regions of the substrate carrying the mesoporous layer. The pore forming agent is decomposed such that the mesoporous layer is more porous than the diffusion media substrate.

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