HIGH ENERGY DENSITY ELECTROCHEMICAL CAPACITORS
    1.
    发明申请
    HIGH ENERGY DENSITY ELECTROCHEMICAL CAPACITORS 有权
    高能量密度电化学电容器

    公开(公告)号:US20130070391A1

    公开(公告)日:2013-03-21

    申请号:US13676480

    申请日:2012-11-14

    申请人: Jian-ping ZHENG

    发明人: Jian-ping ZHENG

    IPC分类号: H01G9/042 H01G9/145 H01G9/00

    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.

    摘要翻译: 电化学电容器及其制造方法。 电化学电容器可以具有初始充电状态和循环充电状态,并且可以包括阳极,阴极和电解质。 阳极可以包括具有第一平均孔隙率的第一多个导电含碳颗粒的第一混合物。 阴极可以包括具有第二多个导电含碳颗粒的第二混合物,其具有大于所述第一平均孔隙率的第二平均孔隙率。 电解质可以物理和电接触所述阳极和所述阴极,并且处于循环带电状态的第一混合物可以基本上不含锂金属颗粒,并且还可以包括插入第一多个包含碳的颗粒的多个锂离子。 阴极和电解质的质量比可以小于1。

    CARBON NANOTUBE AND NONOFIBER FILM-BASED MEMBRANE ELECTRODE ASSEMBLIES
    2.
    发明申请
    CARBON NANOTUBE AND NONOFIBER FILM-BASED MEMBRANE ELECTRODE ASSEMBLIES 有权
    碳纳米管和非尼龙膜基膜电极组件

    公开(公告)号:US20100143822A1

    公开(公告)日:2010-06-10

    申请号:US12505070

    申请日:2009-07-17

    IPC分类号: H01M8/10

    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。

    High energy density electrochemical capacitors

    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

    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.

    Amorphous thin film electrode materials from hydrous metal oxides
    6.
    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

    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

    公开(公告)号:US5875092A

    公开(公告)日:1999-02-23

    申请号:US798398

    申请日:1997-02-07

    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
    9.
    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

    IPC分类号: H01G4/20

    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。

    Catalytic electrode with gradient porosity and catalyst density for fuel cells
    10.
    发明授权
    Catalytic electrode with gradient porosity and catalyst density for fuel cells 有权
    催化电极具有梯度孔隙率和燃料电池的催化剂密度

    公开(公告)号:US08703355B2

    公开(公告)日:2014-04-22

    申请号:US12839124

    申请日:2010-07-19

    IPC分类号: H01M8/10 H01M4/88

    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。