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11 条记录 (耗时 0.017 秒)

    Amorphous thin film electrode materials from hydrous metal oxides
    3.
    发明授权
    Amorphous thin film electrode materials from hydrous metal oxides 失效
    水合金属氧化物的非晶薄膜电极材料

    公开(公告)号：US5600535A

    公开(公告)日：1997-02-04

    申请号：US353418

    申请日：1994-12-09

    申请人： T. Richard Jow ,  Jian-Ping Zheng

    发明人： T. Richard Jow ,  Jian-Ping Zheng

    IPC分类号： H01G9/04 ,  H01G9/042 ,  H01G9/00

    CPC分类号： H01G9/042 ,  Y10T29/417

    摘要： This invention relates to a novel electrode material for electrochemical ) capacitors. This invention also relates to a novel method for making such electrode. The electrode material is an amorphous phase of ruthenium oxide formed directly on titanium (Ti) substrate. The method is the application of heat on the Ti substrate which is wetted by metal alkoxide precursor. The method produces film which adheres to the substrate before and after charge/discharge cycling. As a result, the EC capacitors made of the electrode exhibit high power and also high energy which is higher than that of the traditional crystalline phase of ruthenium oxide thin film on Ti. This type of capacitor is especially suited for burst communication which requires energy with high power density, high energy density, and high cycle life at medium to low voltages (10-20 volts).

    摘要翻译： 本发明涉及一种用于电化学（EC）电容器的新型电极材料。 本发明还涉及制造这种电极的新方法。 电极材料是直接在钛（Ti）衬底上形成的氧化钌的非晶相。 该方法是在被金属醇盐前体润湿的Ti衬底上施加热量。 该方法产生在充电/放电循环之前和之后粘附到基底的膜。 结果，由电极制成的EC电容器表现出高功率，并且高于Ti上的氧化钌薄膜的传统结晶相的高能量。 这种类型的电容器特别适用于需要具有高功率密度，高能量密度和中低电压（10-20伏特）的高循环寿命的能量的突发通信。

    Proton inserted ruthenium oxide electrode material for electrochemical capacitors
    4.
    发明授权
    Proton inserted ruthenium oxide electrode material for electrochemical capacitors 失效

    公开(公告)号：US5875092A

    公开(公告)日：1999-02-23

    申请号：US798398

    申请日：1997-02-07

    申请人： T. Richard Jow ,  Jian-Ping Zheng

    发明人： T. Richard Jow ,  Jian-Ping Zheng

    IPC分类号： H01G9/00 ,  H01G9/155 ,  H01G9/04

    CPC分类号： H01G9/155 ,  Y02E60/13

    摘要： A high energy density electrochemical capacitors with electrodes is formed from proton inserted ruthenium oxides (e.g. HRuO.sub.2.xH.sub.2 O or HRuO.sub.2). The electrode material is formed by reducing ruthenium oxides (e.g. RuO.sub.2.xH.sub.2 O or RuO.sub.2) using electrochemical method or chemical reaction between ruthenium oxides with acetone or methanol. Electrochemical capacitors with electrodes formed of proton inserted ruthenium oxides possess higher energy density, lower resistance, broader operating temperature range, and longer lifetime than that with electrodes comprised ruthenium oxides.

    Capacitor having an enhanced dielectric breakdown strength
    5.
    发明授权
    Capacitor having an enhanced dielectric breakdown strength 失效
    具有增强的介电击穿强度的电容器

    公开(公告)号：US5636100A

    公开(公告)日：1997-06-03

    申请号：US495289

    申请日：1995-06-27

    申请人： Jian-Ping Zheng ,  T. Richard Jow ,  Peter J. Cygan

    发明人： Jian-Ping Zheng ,  T. Richard Jow ,  Peter J. Cygan

    IPC分类号： H01G4/20

    CPC分类号： H01G4/20 ,  Y10T428/24917 ,  Y10T428/31507 ,  Y10T428/3154 ,  Y10T428/31544 ,  Y10T428/31786 ,  Y10T428/31797

    摘要： A capacitor having an enhanced dielectric breakdown strength is obtained m a base dielectric film by coating the base dielectric film on both sides with an adherent coated dielectric film having a dielectric constant that is at least 50 percent higher than that of the base dielectric film and that adheres to the base dielectric film; and wherein metal foil is adherently joined to each of the coated dielectrics films to form electrodes for the capacitor.

    摘要翻译： 具有增强的介电击穿强度的电容器通过用介电常数比基底电介质膜高至少50％的粘附涂层电介质膜涂覆两侧的基底电介质膜，从基底电介质膜获得，并且 粘附到基底电介质膜上; 并且其中金属箔粘附地连接到每个涂覆的电介质膜以形成用于电容器的电极。

    Proton inserted ruthenium oxide electrode material for electrochemical capacitors
    6.
    发明授权
    Proton inserted ruthenium oxide electrode material for electrochemical capacitors 有权

    公开(公告)号：US06383363B1

    公开(公告)日：2002-05-07

    申请号：US09757394

    申请日：2001-01-05

    申请人： T. Richard Jow ,  Jian-Ping Zheng

    发明人： T. Richard Jow ,  Jian-Ping Zheng

    IPC分类号： H01G900

    摘要： A high energy density electrochemical capacitors with electrodes is formed from proton inserted ruthenium oxides (e.g. HRuO2.xH2O or HRuO2). The electrode material is formed by reducing ruthenium oxides (e.g. RuO2.xH2O or RuO2) using electrochemical method or chemical reaction between ruthenium oxides with acetone or methanol. Electrochemical capacitors with electrodes formed of proton inserted ruthenium oxides possess higher energy density, lower resistance, broader operating temperature range, and longer lifetime than that with electrodes comprised ruthenium oxides.

    Electrode materials from hydrous metal and/or hydrous mixed metal oxides
    7.
    发明授权
    Electrode materials from hydrous metal and/or hydrous mixed metal oxides 失效
    来自含水金属和/或含水混合金属氧化物的电极材料

    公开(公告)号：US6097588A

    公开(公告)日：2000-08-01

    申请号：US158092

    申请日：1998-09-22

    申请人： Jian-Ping Zheng ,  T. Richard Jow

    发明人： Jian-Ping Zheng ,  T. Richard Jow

    IPC分类号： C01B13/14 ,  C01B13/36 ,  C01G55/00 ,  H01G9/04 ,  H01G9/042 ,  H01M4/48 ,  H01M4/90 ,  H01G9/00

    CPC分类号： H01G9/042 ,  C01B13/145 ,  C01B13/366 ,  C01G55/00 ,  C01G55/004 ,  H01G9/0425 ,  H01M4/48 ,  H01M4/9016 ,  C01P2002/02 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2006/12 ,  C01P2006/40

    摘要： An electrode material composed of hydrous metal oxide, such as ruthenium de, is annealed up to temperature just below the temperature at which the hydrous metal oxide would crystallize. Therefore, the hydrous metal oxide remains amorphous or non-crystalline. A hydrous metal oxide material treated in this manner provides a charge storage capacity and energy density greater than 747 F/g and 92 joules/gram, respectively, over 1 V range in a sulfuric acid electrolyte. This invention also provides a method of material preparation, wherein a sol-gel process is used to fabricate the hydrous metal oxides and wherein commercially available hydrous ruthenium oxide powders are treated and annealed.

    摘要翻译： 由含水金属氧化物（例如氧化钌）构成的电极材料退火直到低于水合金属氧化物结晶温度的温度。 因此，含水金属氧化物保持无定形或非结晶。 以这种方式处理的含水金属氧化物材料在硫酸电解质中在1V范围内分别提供大于747F / g和92焦耳/克的电荷存储容量和能量密度。 本发明还提供了一种材料制备方法，其中使用溶胶 - 凝胶法来制造含水金属氧化物，并且其中市售的含水氧化钌粉末被处理和退火。

    CATALYTIC ELECTRODE WITH GRADIENT POROSITY AND CATALYST DENSITY FOR FUEL CELLS
    10.
    发明申请
    CATALYTIC ELECTRODE WITH GRADIENT POROSITY AND CATALYST DENSITY FOR FUEL CELLS 有权
    具有梯度孔隙度和催化剂密度的燃料电池的催化电极

    公开(公告)号：US20110008705A1

    公开(公告)日：2011-01-13

    申请号：US12839124

    申请日：2010-07-19

    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： 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。