公开(公告)号：US6036838A

公开(公告)日：2000-03-14

申请号：US357342

申请日：1999-07-14

申请人： Christian Wieser ,  Axel Helmbold

发明人： Christian Wieser ,  Axel Helmbold

IPC分类号： B01J19/00 ,  C25B9/08 ,  C25B15/02 ,  G01N27/403 ,  G01N27/416 ,  H01M8/02 ,  H01M8/04 ,  C25B1/00

CPC分类号： H01M8/04634 ,  C25B15/02 ,  C25B9/08 ,  H01M8/04089 ,  H01M8/04582 ,  H01M8/04589 ,  H01M8/04641 ,  H01M8/04895 ,  H01M2300/0082 ,  H01M8/0269 ,  H01M8/04447 ,  H01M8/04455 ,  H01M8/04462 ,  H01M8/0447

摘要： In order to improve a method for determining the substance conversion during areal electrochemical reactions in at least one local surface area between a counterelectrode arrangement of an areal design and an electrode arrangement of an areal design, which has a contact element segment designed in accordance with the surface area and a contact element contacting the remaining surface areas and being electrically insulated in relation to the contact element segment, in such a manner that the substance conversion can be determined in as simple a manner as possible it is suggested that not only the contact element but also the contact element segment be connected to one current source or current drain provided for carrying out the electrochemical reaction, that a current flowing between the contact element segment and the current source or current drain via a conductor generate a magnetic field around the conductor and that the magnetic field be determined as a measure for the substance conversion in the local surface area.

摘要翻译： 为了改进用于在区域设计的反电极布置和面设计的电极布置之间的至少一个局部表面区域中的区域电化学反应期间确定物质转化的方法，其具有根据 表面积和与剩余表面积接触并且相对于接触元件段电绝缘的接触元件，使得可以以尽可能简单的方式确定物质转化的方式，不仅使接触元件 而且接触元件段连接到设置用于进行电化学反应的一个电流源或电流漏极，通过导体在接触元件段和电流源或电流漏极之间流动的电流在导体周围产生磁场，并且 将磁场确定为物质c的量度 在当地表面积上反转。

公开(公告)号：US20110207022A1

公开(公告)日：2011-08-25

申请号：US12708761

申请日：2010-02-19

申请人： Christian Wieser ,  Paul D. Nicotera

发明人： Christian Wieser ,  Paul D. Nicotera

IPC分类号： H01M8/04

CPC分类号： H01M8/0245 ,  H01M8/0234 ,  H01M8/0247 ,  H01M2008/1095

摘要： A diffusion medium for use in a PEM fuel cell including a porous spacer layer disposed between a plurality of perforated layers having variable size and frequency of perforation patterns, each perforated layer having a microporous layer formed thereon, wherein the diffusion medium is adapted to optimize water management in and performance of the fuel cell.

摘要翻译： 一种用于PEM燃料电池的扩散介质，包括多孔间隔层，其设置在具有可变尺寸和穿孔图案频率的多个穿孔层之间，每个穿孔层在其上形成有微孔层，其中扩散介质适于优化水 燃料电池的管理和性能。

公开(公告)号：US20070178341A1

公开(公告)日：2007-08-02

申请号：US11341292

申请日：2006-01-27

申请人： Christian Wieser

发明人： Christian Wieser

IPC分类号： H01M8/02 ,  H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/0228 ,  H01M8/0239 ,  H01M8/0265 ,  H01M8/04171 ,  H01M8/04179

摘要： A fuel cell system is described having an active system for controlling local gas velocity in flow field channels by changing the gas channel cross sectional area depending on local relative humidity and state of water (i.e., vapor/liquid), thereby improving the removal of liquid water in a flow field channel. For example, a flow field channel is coated or otherwise provided with a material that swells in the presence of water vapor and/or liquid water, such as but not limited to super-absorbent materials. As the swelling continues, the channel gets narrower and the increased gas velocity leads to increased shear forces that improve the movement of the liquid water along the channel out of the cell. The water-uptake and swelling behavior is reversible and the channel will get wider as soon as the liquid is removed and/or the relative gas humidity is decreased.

摘要翻译： 燃料电池系统被描述为具有用于通过根据局部相对湿度和水的状态（即，蒸汽/液体）改变气体通道截面积来控制流场通道中的局部气体速度的活动系统，从而改善液体的去除 水在流场通道中。 例如，流场通道被涂覆或以其他方式设置有在水蒸气和/或液态水存在下溶胀的材料，例如但不限于超吸收材料。 随着溶胀持续，通道变窄并且增加的气体速度导致增加的剪切力，从而改善液体水沿着通道流出电池的运动。 吸水和膨胀行为是可逆的，一旦液体被去除和/或相对气体湿度降低，通道将变宽。

公开(公告)号：US08304145B2

公开(公告)日：2012-11-06

申请号：US12708761

申请日：2010-02-19

申请人： Christian Wieser ,  Paul D. Nicotera

发明人： Christian Wieser ,  Paul D. Nicotera

IPC分类号： H01M4/02

CPC分类号： H01M8/0245 ,  H01M8/0234 ,  H01M8/0247 ,  H01M2008/1095

摘要： A diffusion medium for use in a PEM fuel cell including a porous spacer layer disposed between a plurality of perforated layers having variable size and frequency of perforation patterns, each perforated layer having a microporous layer formed thereon, wherein the diffusion medium is adapted to optimize water management in and performance of the fuel cell.

摘要翻译： 一种用于PEM燃料电池的扩散介质，包括多孔间隔层，其设置在具有可变尺寸和穿孔图案频率的多个穿孔层之间，每个穿孔层在其上形成有微孔层，其中扩散介质适于优化水 燃料电池的管理和性能。

公开(公告)号：US07829230B2

公开(公告)日：2010-11-09

申请号：US11778741

申请日：2007-07-17

申请人： Torsten Berning ,  Christian Wieser ,  Po-Ya Abel Chuang ,  Thomas A. Trabold

发明人： Torsten Berning ,  Christian Wieser ,  Po-Ya Abel Chuang ,  Thomas A. Trabold

IPC分类号： H01M8/00

CPC分类号： H01M8/0245 ,  H01M8/04305 ,  H01M2250/20 ,  Y02T90/32

摘要： A method for optimizing a fuel cell diffusion media having a spatially varying mass transport resistance is provided. The method includes at least two passes where a first-pass D/Deff profile for the fuel cell diffusion media is provided and applied to a computational model of the fuel cell having a baseline variable profile. At least one first-pass variable profile resulting from the application of the first-pass D/Deff profile to the computational mode is calculated and compared to a desired variable range. The first-pass D/Deff profile is refined, if necessary, to provide a second-pass D/Deff profile. A relative performance of the fuel cell with a second-pass variable profile resulting from an application of the second-pass D/Deff profile is determined. The second-pass D/Deff profile is refined, if necessary, until the second-pass variable profile has a desirable performance. An effective D/Deff profile is thereby provided.

摘要翻译： 提供了一种用于优化具有空间变化的质量传输电阻的燃料电池扩散介质的方法。 该方法包括至少两次通过，其中提供用于燃料电池扩散介质的第一通道D / Deff曲线并将其应用于具有基线可变轮廓的燃料电池的计算模型。 计算从应用第一遍D / Deff轮廓到计算模式的至少一个第一遍可变轮廓，并将其与期望的可变范围进行比较。 如果需要，首选D / Deff配置文件将被改进，以提供二次D / Deff配置文件。 确定由施加二次D / Deff轮廓导致的具有二次可变轮廓的燃料电池的相对性能。 如果需要，二次D / Deff轮廓被精炼，直到第二道次可变轮廓具有期望的性能。 由此提供有效的D / Deff曲线。

公开(公告)号：US20100028750A1

公开(公告)日：2010-02-04

申请号：US12185479

申请日：2008-08-04

申请人： Chunxin Ji ,  Christian Wieser ,  Mark Mathias ,  Paul D. Nicotera

发明人： Chunxin Ji ,  Christian Wieser ,  Mark Mathias ,  Paul D. Nicotera

IPC分类号： H01M2/00

CPC分类号： H01M8/0234 ,  H01M8/0243 ,  H01M2008/1095

摘要： A gas diffusion layer for use in fuel cells includes a gas permeable diffusion structure and a microporous layer. The microporous layer incorporates a plurality of particles of anisotropic shape, simultaneously reducing the porosity of the microporous layer and increasing the tortuosity for gas transporting through the microporous layer. The anisotropic particles in the microporous layer are present in a first amount such that the gas diffusion layer has an increased gas transport resistance.

摘要翻译： 用于燃料电池的气体扩散层包括透气扩散结构和微孔层。 微孔层结合有多个各向异性的颗粒，同时降低了微孔层的孔隙率，并且增加了通过微孔层输送气体的弯曲度。 微孔层中的各向异性颗粒以第一量存在，使得气体扩散层具有增加的气体输送阻力。

公开(公告)号：US20090024373A1

公开(公告)日：2009-01-22

申请号：US11778741

申请日：2007-07-17

申请人： Torsten Berning ,  Christian Wieser ,  Po-Ya Abel Chuang ,  Thomas A. Trabold

发明人： Torsten Berning ,  Christian Wieser ,  Po-Ya Abel Chuang ,  Thomas A. Trabold

IPC分类号： G06G7/48

CPC分类号： H01M8/0245 ,  H01M8/04305 ,  H01M2250/20 ,  Y02T90/32

摘要： A method for optimizing a fuel cell diffusion media having a spatially varying mass transport resistance is provided. The method includes at least two passes where a first-pass D/Deff profile for the fuel cell diffusion media is provided and applied to a computational model of the fuel cell having a baseline variable profile. At least one first-pass variable profile resulting from the application of the first-pass D/Deff profile to the computational mode is calculated and compared to a desired variable range. The first-pass D/Deff profile is refined, if necessary, to provide a second-pass D/Deff profile. A relative performance of the fuel cell with a second-pass variable profile resulting from an application of the second-pass D/Deff profile is determined. The second-pass D/Deff profile is refined, if necessary, until the second-pass variable profile has a desirable performance. An effective D/Deff profile is thereby provided.

摘要翻译： 提供了一种用于优化具有空间变化的质量传输电阻的燃料电池扩散介质的方法。 该方法包括至少两次通过，其中提供用于燃料电池扩散介质的第一通道D / Deff曲线并将其应用于具有基线可变轮廓的燃料电池的计算模型。 计算从应用第一遍D / Deff轮廓到计算模式的至少一个第一遍可变轮廓，并将其与期望的可变范围进行比较。 如果需要，首选D / Deff配置文件将被改进，以提供二次D / Deff配置文件。 确定由施加二次D / Deff轮廓导致的具有二次可变轮廓的燃料电池的相对性能。 如果需要，二次D / Deff轮廓被精炼，直到第二道次可变轮廓具有期望的性能。 由此提供有效的D / Deff曲线。