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    Cathode for fuel cell
    2.
    发明授权
    Cathode for fuel cell 有权
    燃料电池阴极

    公开(公告)号：US08460836B2

    公开(公告)日：2013-06-11

    申请号：US12682868

    申请日：2008-10-08

    申请人： Hyuk Kim ,  Won-Ho Lee ,  Chang-Song Lee ,  Seong-Uk Jeong ,  Sang-Hyun Lee

    发明人： Hyuk Kim ,  Won-Ho Lee ,  Chang-Song Lee ,  Seong-Uk Jeong ,  Sang-Hyun Lee

    IPC分类号： H01M8/24

    CPC分类号： H01M4/8828 ,  H01M4/8605 ,  H01M4/8668 ,  H01M4/8807 ,  H01M4/881 ,  H01M4/926 ,  H01M8/04119 ,  H01M8/04149 ,  H01M8/04171 ,  H01M8/1023 ,  H01M8/1039 ,  H01M2004/8689 ,  Y02E60/50

    摘要： A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell.

    摘要翻译： 用于燃料电池的阴极包括与具有通道的隔板接触的气体扩散层和介于气体扩散层和电解质膜之间的催化剂层。 阴极的催化剂层具有不同的排斥性能的两部分，并且不面向通道的催化剂层的一部分具有比面对通道的部分更高的排斥性能。 该阴极根据位置不同地控制催化剂层的斥水性，因此可以以适当的方式保持电极中的水分量，并且抑制淹水的产生，从而提高电池的性能。

    Electrode For Fuel Cell And Method Of Preparing The Same And Membrane Electrode Assembly And Fuel Cell Comprising The Same
    3.
    发明申请
    Electrode For Fuel Cell And Method Of Preparing The Same And Membrane Electrode Assembly And Fuel Cell Comprising The Same 审中-公开
    燃料电池用电极及其制作方法及其相同的膜电极组件及燃料电池

    公开(公告)号：US20100304269A1

    公开(公告)日：2010-12-02

    申请号：US12682192

    申请日：2008-10-06

    申请人： Hyuk Kim ,  Won-Ho Lee ,  Chang-Song Lee ,  Seong-Uk Jeong ,  Sang-Hyun Lee

    发明人： Hyuk Kim ,  Won-Ho Lee ,  Chang-Song Lee ,  Seong-Uk Jeong ,  Sang-Hyun Lee

    IPC分类号： H01M8/10 ,  H01M8/02 ,  H01M4/88

    CPC分类号： H01M4/8892 ,  H01M4/8626 ,  H01M4/8642 ,  H01M4/8647 ,  H01M4/8832 ,  H01M4/926 ,  H01M2008/1095

    摘要： The present invention relates to an electrode for a fuel cell including a catalyst layer that includes a catalyst portion containing a plurality of first catalyst particles dispersed in an ionomer binder resin; and an ionomer portion containing a plurality of second catalyst particles dispersed in an ionomer binder resin, and having a lower concentration of catalyst particles than the catalyst portion, wherein the ionomer portion has a shape of a wall or plural pillars in the catalyst portion. The electrode for a fuel cell according to the present invention has a separate ionomer portion in the catalyst layer, and thus has excellent ion conductivity in an electrode layer and the remarkably improved reaction surface area to enhance the performance of the fuel cell.

    摘要翻译： 本发明涉及一种燃料电池用电极，其包括催化剂层，该催化剂层包括含有分散在离聚物粘合剂树脂中的多个第一催化剂粒子的催化剂部分; 和含有分散在离聚物粘合剂树脂中的多个第二催化剂颗粒并且具有比催化剂部分低的催化剂颗粒浓度的离聚物部分，其中离聚物部分在催化剂部分中具有壁或多个柱状。 根据本发明的燃料电池用电极在催化剂层中具有单独的离聚物部分，因此在电极层中具有优异的离子传导性，并且显着改善了反应表面积，以提高燃料电池的性能。

    System and Method for Forming a Membrane Electrode Assembly for Fuel Cells
    6.
    发明申请
    System and Method for Forming a Membrane Electrode Assembly for Fuel Cells 审中-公开
    用于形成用于燃料电池的膜电极组件的系统和方法

    公开(公告)号：US20070214636A1

    公开(公告)日：2007-09-20

    申请号：US10591059

    申请日：2005-05-13

    申请人： Kyoung-Il Park ,  Go-Young Moon ,  Hwang-Chan Yoo ,  Sang-Hyun Lee ,  Ha-Chull Chung ,  Seong-Min Song ,  Won-Ho Lee

    发明人： Kyoung-Il Park ,  Go-Young Moon ,  Hwang-Chan Yoo ,  Sang-Hyun Lee ,  Ha-Chull Chung ,  Seong-Min Song ,  Won-Ho Lee

    IPC分类号： H01M4/88 ,  B05D1/02 ,  B05C5/00 ,  B28B19/00 ,  H01M6/00

    CPC分类号： H01M8/1004 ,  H01M4/8807 ,  H01M4/881 ,  H01M4/886 ,  Y02P70/56 ,  Y10T29/49108

    摘要： A system for manufacturing a membrane electrode assembly for a fuel cell according to an embodiment of the present invention includes a catalyst solution preheating device, an carrying gas preheater, a cathode catalyst solution spray nozzle, and an anode catalyst solution spray nozzle. The catalyst solution preheating device preheats a cathode catalyst solution and an anode catalyst solution. The carrying gas preheater preheats an carrying gas. The cathode catalyst solution spray nozzle is supplied with the cathode catalyst solution preheated by the catalyst solution preheating device and the carrying gas preheated by the carrying gas preheater, and is configured to spray the supplied cathode catalyst solution. The anode catalyst solution spray nozzle is supplied with the anode catalyst solution preheated by the catalyst solution preheating device and the carrying gas preheated by the carrying gas preheater, and is configured to spray the supplied anode catalyst solution.

    摘要翻译： 根据本发明实施例的用于燃料电池的膜电极组件的制造系统包括催化剂溶液预热装置，载气预热器，阴极催化剂溶液喷嘴和阳极催化剂溶液喷嘴。 催化剂溶液预热装置预热阴极催化剂溶液和阳极催化剂溶液。 携带气体预热器预热携带气体。 向阴极催化剂溶液喷嘴供给由催化剂预热装置预热的阴极催化剂溶液和由携带气体预热器预热的载气，并配置为喷射所提供的阴极催化剂溶液。 供给由催化剂溶液预热装置预热的阳极催化剂溶液和由携带气体预热器预热的携带气体的阳极催化剂溶液喷嘴，并配置为喷射供应的阳极催化剂溶液。

    Apparatus and method of decreasing speed of sensorless brush less direct current (BLDC) motor
    10.
    发明授权
    Apparatus and method of decreasing speed of sensorless brush less direct current (BLDC) motor 有权
    无刷直流无刷直流电机降速的装置及方法

    公开(公告)号：US09287807B2

    公开(公告)日：2016-03-15

    申请号：US14119519

    申请日：2012-09-28

    申请人： Sang-Hyun Lee

    发明人： Sang-Hyun Lee

    IPC分类号： H02P6/00 ,  H02P3/14 ,  H02P6/18 ,  H02P6/24

    CPC分类号： H02P3/14 ,  H02P6/182 ,  H02P6/24

    摘要： Disclosed herein is an apparatus of a sensorless brush less direct current (BLDC) motor capable of rapidly driving the BLDC motor at a decreased speed. The apparatus includes: a switching unit configured to switch a direct current (DC) power depending on a plurality of pulse width modulation (PWM) signals to generate a three-phase alternating current (AC) power and apply the generated three-phase AC power to the BLDC motor to drive the BDLC motor; a plurality of voltage dividers configured to divide voltages of reverse electromotive forces generated in the BLDC motor; and a controlling unit configured to calculate a current rotation speed of the BLDC motor using output signals of the plurality of voltage dividers, generate the plurality of PWM signals depending on the calculated current rotation speed and a command rotation speed and output the plurality of PWM signals to the switching unit, divide a rotation phase angle of the BLDC motor into a speed decreasing region and a zero crossing point (ZCP) detecting region in the case of decreasing a rotation speed of the BLDC motor, decrease the rotation speed of the BLDC motor in the case in which the rotation phase angle of the BLDC motor is in the speed decreasing region, and detect ZCPs of the reverse electromotive forces in the case in which the rotation phase angle of the BLDC motor is in the ZCP detecting region. The apparatus may very rapidly decrease a speed of the BLDC motor to a required speed.

    摘要翻译： 本发明公开了一种能够以较低速度快速驱动BLDC电动机的无传感器刷少直流电动机（BLDC）电动机的装置。 该装置包括：开关单元，被配置为根据多个脉冲宽度调制（PWM）信号切换直流（DC）功率，以产生三相交流（AC）电力，并将产生的三相交流电 到BLDC电机驱动BDLC电机; 多个分压器，被配置为分配在所述BLDC电动机中产生的反向电动势的电压; 以及控制单元，被配置为使用所述多个分压器的输出信号来计算所述BLDC电动机的当前转速，根据所计算的当前转速和指令旋转速度产生所述多个PWM信号，并输出所述多个PWM信号 在切换单元中，在降低BLDC电动机的转速的情况下，将BLDC电动机的旋转相位角分为减速区域和过零点（ZCP）检测区域，降低BLDC电动机的转速 在BLDC电动机的旋转相位角处于减速区域的情况下，并且在BLDC电动机的旋转相位角处于ZCP检测区域的情况下，检测反向电动势的ZCP。 该装置可以非常快速地将BLDC电动机的速度降低到所需的速度。