公开(公告)号：US20070288126A1

公开(公告)日：2007-12-13

申请号：US11761077

申请日：2007-06-11

申请人： Yang Wang ,  Jian-ping Zheng

发明人： Yang Wang ,  Jian-ping Zheng

IPC分类号： H01M8/04 ,  G05D11/00

CPC分类号： H01M8/00 ,  H01M8/04089 ,  H01M8/04305 ,  H01M8/04992 ,  H01M8/1011 ,  Y02E60/523

摘要： A nonlinear electrical circuit dynamic model for different fuel cells is provided. The model provides a nonlinear electrical circuit equivalent, the parameters of which correspond to the particular fuel cell being modeled. The parameters can be theoretically or experimentally derived from the responses of the particular fuel cell. The resulting model can have impedances that are equivalent to that of the particular fuel cell, thereby capturing or providing a good approximation of the transient behavior of the particular fuel cell. More particularly, the resulting model can have impedances in the low frequency range less than 100 Hz that are equivalent to that of the particular fuel cell.

摘要翻译： 提供了一种用于不同燃料电池的非线性电路动态模型。 该模型提供了非线性电路等效，其参数对应于正在建模的特定燃料电池。 这些参数可以从特定燃料电池的反应理论或实验得出。 所得到的模型可以具有等同于特定燃料电池的阻抗，从而捕获或提供特定燃料电池的瞬态特性的良好近似。 更具体地，所得到的模型可以具有等于特定燃料电池的小于100Hz的低频范围内的阻抗。

公开(公告)号：US07844434B2

公开(公告)日：2010-11-30

申请号：US11761077

申请日：2007-06-11

申请人： Yang Wang ,  Jian-ping Zheng

发明人： Yang Wang ,  Jian-ping Zheng

IPC分类号： G06F17/50

CPC分类号： H01M8/00 ,  H01M8/04089 ,  H01M8/04305 ,  H01M8/04992 ,  H01M8/1011 ,  Y02E60/523

摘要： A nonlinear electrical circuit dynamic model for different fuel cells is provided. The model provides a nonlinear electrical circuit equivalent, the parameters of which correspond to the particular fuel cell being modeled. The parameters can be theoretically or experimentally derived from the responses of the particular fuel cell. The resulting model can have impedances that are equivalent to that of the particular fuel cell, thereby capturing or providing a good approximation of the transient behavior of the particular fuel cell. More particularly, the resulting model can have impedances in the low frequency range less than 100 Hz that are equivalent to that of the particular fuel cell.

摘要翻译： 提供了一种用于不同燃料电池的非线性电路动态模型。 该模型提供了非线性电路等效，其参数对应于正在建模的特定燃料电池。 这些参数可以从特定燃料电池的反应理论或实验得出。 所得到的模型可以具有等同于特定燃料电池的阻抗，从而捕获或提供特定燃料电池的瞬态特性的良好近似。 更具体地，所得到的模型可以具有等于特定燃料电池的小于100Hz的低频范围内的阻抗。

公开(公告)号：US09245691B1

公开(公告)日：2016-01-26

申请号：US14574902

申请日：2014-12-18

申请人： Jian-ping Zheng

发明人： Jian-ping Zheng

IPC分类号： H01G9/00 ,  H01G9/042

CPC分类号： H01G9/0029 ,  B82Y99/00 ,  H01G9/042 ,  H01G9/145 ,  H01G11/04 ,  H01G11/06 ,  H01G11/24 ,  H01G11/38 ,  H01G11/50 ,  H01G11/86 ,  H01M4/382 ,  H01M4/587 ,  H01M12/005 ,  H01M2010/4292 ,  Y02E60/13 ,  Y02T10/7022 ,  Y10T29/417

摘要： Electrochemical capacitors and methods for producing such electrochemical capacitors. The electrochemical capacitor can have an initial charged state and a cycled charged state and can include an anode, a cathode, and an electrolyte. The anode can include a first mixture having a first plurality of electrically conductive carbon-comprising particles having a first average porosity. The cathode can include a second mixture having a second plurality of electrically conductive carbon-comprising particles having a second average porosity greater than said first average porosity. The electrolyte can be physically and electrically contacting said anode and said cathode, and the first mixture in the cycled charged state can be substantially free of lithium metal particles and can further include a plurality of lithium ions intercalating the first plurality of carbon comprising particles. The mass ratio of the cathode and the electrolyte can be less than 1.

公开(公告)号：US20100143822A1

公开(公告)日：2010-06-10

申请号：US12505070

申请日：2009-07-17

申请人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

发明人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

IPC分类号： H01M8/10

CPC分类号： C04B35/83 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8807 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56 ,  Y10T428/30

摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The catalyst layer can have 1% or less binder prior to attachment to the membrane electrode assembly. The catalyst layer can include (a) single-wall nanotubes, small diameter multi-wall nanotubes, or both, and (b) large diameter multi-wall nanotubes, carbon nanofibers, or both. The ratio of (a) to (b) can range from 1:2 to 1:20. The catalyst layer can produce a surface area utilization efficiency of at least 60% and the platinum utilization efficiency can be 0.50 gPt/kW or less.

摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括催化剂层及其制造方法。 催化剂层可以包括设置在压缩纸上的多个催化剂纳米颗粒，例如铂。 催化剂层可以在连接到膜电极组件之前具有1％以下的粘合剂。 催化剂层可以包括（a）单壁纳米管，小直径多壁纳米管或两者，和（b）大直径多壁纳米管，碳纳米纤维或两者。 （a）至（b）的比例可以为1:2至1:20。 催化剂层可以产生至少60％的表面积利用效率，铂利用效率可以为0.50gPt / kW以下。

公开(公告)号：US08415012B2

公开(公告)日：2013-04-09

申请号：US12505070

申请日：2009-07-17

申请人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

发明人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

IPC分类号： H01M8/10 ,  H01M4/88

CPC分类号： C04B35/83 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8807 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56 ,  Y10T428/30

摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The catalyst layer can have 1% or less binder prior to attachment to the membrane electrode assembly. The catalyst layer can include (a) single-wall nanotubes, small diameter multi-wall nanotubes, or both, and (b) large diameter multi-wall nanotubes, carbon nanofibers, or both. The ratio of (a) to (b) can range from 1:2 to 1:20. The catalyst layer can produce a surface area utilization efficiency of at least 60% and the platinum utilization efficiency can be 0.50 gPt/kW or less.

摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括催化剂层及其制造方法。 催化剂层可以包括设置在压缩纸上的多个催化剂纳米颗粒，例如铂。 催化剂层可以在连接到膜电极组件之前具有1％以下的粘合剂。 催化剂层可以包括（a）单壁纳米管，小直径多壁纳米管或两者，和（b）大直径多壁纳米管，碳纳米纤维或两者。 （a）至（b）的比例可以为1:2至1:20。 催化剂层可以产生至少60％的表面积利用效率，铂利用效率可以为0.50gPt / kW以下。

公开(公告)号：US08703355B2

公开(公告)日：2014-04-22

申请号：US12839124

申请日：2010-07-19

申请人： Chun Zhang ,  Wei Zhu ,  Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang

发明人： Chun Zhang ,  Wei Zhu ,  Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang

IPC分类号： H01M8/10 ,  H01M4/88

CPC分类号： H01M4/8642 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8657 ,  H01M4/8807 ,  H01M4/8892 ,  H01M4/92 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56

摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a gradient catalyst structure and a method of making the same. The gradient catalyst structure can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on layered buckypaper. The layered buckypaper can include at least a first layer and a second layer and the first layer can have a lower porosity compared to the second layer. The gradient catalyst structure can include single-wall nanotubes, carbon nanofibers, or both in the first layer of the layered buckypaper and can include carbon nanofibers in the second layer of the layered buckypaper. The MEA can have a catalyst utilization efficiency of at least 0.35 gcat/kW or less.

摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括梯度催化剂结构及其制备方法。 梯度催化剂结构可以包括设置在分层压滤纸上的多个催化剂纳米颗粒，例如铂。 所述分层消音器可以包括至少第一层和第二层，并且与第二层相比，第一层可以具有较低的孔隙率。 梯度催化剂结构可以包括单层纳米管，碳纳米纤维或层状降压纸的第一层中的两者，并且可以在层叠的消泡剂的第二层中包括碳纳米纤维。 MEA的催化剂利用效率至少为0.35gcat / kW以下。