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    Mitigating fuel cell start up/shut down degradation
    1.
    发明申请
    Mitigating fuel cell start up/shut down degradation 有权
    减少燃料电池启动/关闭降解

    公开(公告)号：US20060240293A1

    公开(公告)日：2006-10-26

    申请号：US11113462

    申请日：2005-04-25

    申请人： Shyam Kocha

    发明人： Shyam Kocha

    IPC分类号： H01M8/10 ,  H01M8/04

    CPC分类号： B60L11/1887 ,  B60L11/1885 ,  B60L11/1892 ,  B60L11/1898 ,  B60L2240/36 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04302 ,  H01M8/04303 ,  H01M2008/1095 ,  Y02T90/34

    摘要： A method of operating an electrochemical conversion assembly is provided where a shut down sequence is introduced where a substantially dry gas is driven through the cathode flow field. The dry gas is supplied for an amount of time sufficient to reduce the water content of the proton exchange membrane to a level sufficient to suppress corrosion and catalyst dissolution in the membrane electrode assembly. Additional embodiments are disclosed.

    摘要翻译： 提供了一种操作电化学转化组件的方法，其中引入关闭序列，其中基本上干燥的气体被驱动通过阴极流场。 供给干燥气体足以将质子交换膜的含水量降低到足以抑制膜电极组件中的腐蚀和催化剂溶解的水平的时间。 公开了另外的实施例。

    Mitigating fuel cell start up/shut down degradation
    3.
    发明授权
    Mitigating fuel cell start up/shut down degradation 有权
    减少燃料电池启动/关闭降解

    公开(公告)号：US07887963B2

    公开(公告)日：2011-02-15

    申请号：US11113462

    申请日：2005-04-25

    申请人： Shyam Kocha

    发明人： Shyam Kocha

    IPC分类号： H01M8/00 ,  H01M8/04

    CPC分类号： B60L11/1887 ,  B60L11/1885 ,  B60L11/1892 ,  B60L11/1898 ,  B60L2240/36 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04302 ,  H01M8/04303 ,  H01M2008/1095 ,  Y02T90/34

    摘要： A method of operating an electrochemical conversion assembly is provided where a shut down sequence is introduced where a substantially dry gas is driven through the cathode flow field. The dry gas is supplied for an amount of time sufficient to reduce the water content of the proton exchange membrane to a level sufficient to suppress corrosion and catalyst dissolution in the membrane electrode assembly. Additional embodiments are disclosed.

    摘要翻译： 提供了一种操作电化学转化组件的方法，其中引入关闭序列，其中基本上干燥的气体被驱动通过阴极流场。 供给干燥气体足以将质子交换膜的含水量降低到足以抑制膜电极组件中的腐蚀和催化剂溶解的水平的时间。 公开了另外的实施例。

    Fluid distribution assembly for testing systems
    4.
    发明授权
    Fluid distribution assembly for testing systems 失效
    用于测试系统的流体分配组件

    公开(公告)号：US08522819B2

    公开(公告)日：2013-09-03

    申请号：US13011192

    申请日：2011-01-21

    申请人： Gregory DiLeo ,  Nilesh Dale ,  Kevork Adjemian ,  Shyam Kocha

    发明人： Gregory DiLeo ,  Nilesh Dale ,  Kevork Adjemian ,  Shyam Kocha

    IPC分类号： G05D11/02

    CPC分类号： F16K37/00 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04753 ,  Y10T137/8158 ,  Y10T137/87571 ,  Y10T137/87676

    摘要： Disclosed herein are fluid distribution methods and assemblies for supplying fluid to test assemblies. One embodiment of a fluid distribution assembly comprises at least two input lines each configured to supply a fluid. A source selection component is connected to the input lines and configured to receive the fluid of the input lines and select from the fluids a target fluid. A range selection component is configured to receive the target fluid and to select a flow range of the target fluid, outputting the target fluid to a flow component comprising a first flow adjustment component having a first flow rate resolution and a second flow adjustment component having a second flow rate resolution. The range selection component is configured to selectively output the target fluid to one of the first flow adjustment component and the second flow adjustment component based on the selected flow range.

    摘要翻译： 本文公开了用于向测试组件供应流体的流体分配方法和组件。 流体分配组件的一个实施例包括至少两个输入管线，每个输入管线被配置为供应流体。 源选择部件连接到输入线并被配置为接收输入线的流体并从流体中选择目标流体。 范围选择部件被配置为接收目标流体并选择目标流体的流量范围，将目标流体输出到流动部件，该流动部件包括具有第一流量分辨率的第一流量调节部件和具有第一流量调节部件的第二流量调节部件， 第二流量分辨率。 所述量程选择部件被配置为基于所选择的流量范围来选择性地将所述目标流体输出到所述第一流量调节部件和所述第二流量调节部件中的一个。

    Voltage cycling durable catalysts
    5.
    发明申请
    Voltage cycling durable catalysts 审中-公开
    电压循环耐用催化剂

    公开(公告)号：US20070003822A1

    公开(公告)日：2007-01-04

    申请号：US11172504

    申请日：2005-06-30

    申请人： Shyam Kocha ,  Rohit Makharia ,  Hubert Gasteiger

    发明人： Shyam Kocha ,  Rohit Makharia ,  Hubert Gasteiger

    IPC分类号： H01M4/92 ,  H01M4/96 ,  H01M4/88

    CPC分类号： H01M4/92 ,  H01M4/8803 ,  H01M4/921 ,  H01M4/926 ,  H01M2008/1095

    摘要： A fuel cell electrocatalyst layer having increased voltage cycling durability. The electrocatalyst layer comprises annealed platinum particles having an average particle size diameter from about 3 to about 15 nm deposited on a support structure. The platinum particles are annealed at a temperature from about 800 to about 1,400° C. for a time period such that the surface area is reduced by about 20% as compared to the original surface area. In various embodiments, the electrocatalyst layer retains an electrochemical surface area that is greater than 50% of an original electrochemical surface area after about 15,000 voltage cycles in the range from about 0.6 to about 1.0 V.

    摘要翻译： 具有增加的电压循环耐久性的燃料电池电催化剂层。 电催化剂层包括沉积在载体结构上的平均粒径为约3至约15nm的退火铂颗粒。 铂颗粒在约800至约1400℃的温度下退火一段时间，使得与原始表面积相比，表面积减少约20％。 在各种实施方案中，电催化剂层在大约15,000个电压循环之后保持电化学表面积大于原始电化学表面积的50％，范围为约0.6至约1.0V。

    FLUID DISTRIBUTION ASSEMBLY FOR TESTING SYSTEMS
    6.
    发明申请
    FLUID DISTRIBUTION ASSEMBLY FOR TESTING SYSTEMS 失效
    用于测试系统的流体分配组件

    公开(公告)号：US20120186994A1

    公开(公告)日：2012-07-26

    申请号：US13011192

    申请日：2011-01-21

    申请人： Gregory DiLeo ,  Nilesh Dale ,  Kevork Adjemian ,  Shyam Kocha

    发明人： Gregory DiLeo ,  Nilesh Dale ,  Kevork Adjemian ,  Shyam Kocha

    IPC分类号： G01N27/28 ,  F17D3/00 ,  F16K37/00

    CPC分类号： F16K37/00 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04753 ,  Y10T137/8158 ,  Y10T137/87571 ,  Y10T137/87676

    摘要： Disclosed herein are fluid distribution methods and assemblies for supplying fluid to test assemblies. One embodiment of a fluid distribution assembly comprises at least two input lines each configured to supply a fluid. A source selection component is connected to the input lines and configured to receive the fluid of the input lines and select from the fluids a target fluid. A range selection component is configured to receive the target fluid and to select a flow range of the target fluid, outputting the target fluid to a flow component comprising a first flow adjustment component having a first flow rate resolution and a second flow adjustment component having a second flow rate resolution. The range selection component is configured to selectively output the target fluid to one of the first flow adjustment component and the second flow adjustment component based on the selected flow range.

    摘要翻译： 本文公开了用于向测试组件供应流体的流体分配方法和组件。 流体分配组件的一个实施例包括至少两个输入管线，每个输入管线被配置成供应流体。 源选择部件连接到输入线并被配置为接收输入线的流体并从流体中选择目标流体。 范围选择部件被配置为接收目标流体并选择目标流体的流量范围，将目标流体输出到流动部件，该流动部件包括具有第一流量分辨率的第一流量调节部件和具有第一流量调节部件的第二流量调节部件， 第二流量分辨率。 所述量程选择部件被配置为基于所选择的流量范围来选择性地将所述目标流体输出到所述第一流量调节部件和所述第二流量调节部件中的一个。