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    Hydrogen storage alloys having a high porosity surface layer
    1.
    发明授权
    Hydrogen storage alloys having a high porosity surface layer 有权
    具有高孔隙率表面层的储氢合金

    公开(公告)号：US06830725B2

    公开(公告)日：2004-12-14

    申请号：US10405008

    申请日：2003-04-01

    申请人： Michael A. Fetcenko ,  Stanford R. Ovshinsky ,  Kwo Young ,  Benjamin Reichman ,  Taihei Ouchi ,  John Koch ,  William Mays

    发明人： Michael A. Fetcenko ,  Stanford R. Ovshinsky ,  Kwo Young ,  Benjamin Reichman ,  Taihei Ouchi ,  John Koch ,  William Mays

    IPC分类号： C22C3000

    CPC分类号： H01M4/383 ,  H01M10/345 ,  Y02E60/324 ,  Y10S420/90

    摘要： Electrochemical and thermal hydrogen storage alloy compositions that provide superior performance, including an electrochemical hydrogen storage alloy that provides superior low temperature discharge characteristics. The alloy compositions include microstructures in the interface region that are highly porous and that include catalytic metallic particles. The microstructures include a large volume fraction of voids having spherical or channel-like shapes and are sufficiently open structurally to facilitate greater mobility of reactive species within the microstructure and in the vicinity of catalytic metallic particles. Greater accessibility to reactive sites accordingly results. The greater mobility of reactive species and/or the greater density of catalytic particles lead to faster kinetics and improved performance (e.g. higher power), especially at low operating temperatures. The microstructures may be formed through inclusion of a microstructure tuning element in the alloy composition, through control of processing conditions and/or through inclusion of etching steps in the post-formation processing of hydrogen storage alloys.

    摘要翻译： 提供优异性能的电化学和热储氢合金组合物，包括提供优异的低温放电特性的电化学储氢合金。 合金组合物包括界面区域中的高度多孔的微结构，并且包括催化金属颗粒。 微结构包括具有球形或通道状形状的大体积分数的空隙，并且在结构上足够开放以促进反应性物质在微结构内和催化金属颗粒附近的更大迁移率。 因此可以更好地获得反应性网站。 活性物质的较大迁移率和/或更大密度的催化剂颗粒导致更快的动力学和改进的性能（例如更高的功率），特别是在低的操作温度下。 可以通过在合金组合物中包含微结构调谐元件，通过控制加工条件和/或通过在储氢合金的后形成处理中包括蚀刻步骤来形成微观结构。

    METAL HYDRIDE ALLOYS HAVING IMPROVED ACTIVATION AND HIGH RATE PERFORMANCE
    9.
    发明申请
    METAL HYDRIDE ALLOYS HAVING IMPROVED ACTIVATION AND HIGH RATE PERFORMANCE 有权
    具有改进的激活和高速性能的金属氢合金

    公开(公告)号：US20130277607A1

    公开(公告)日：2013-10-24

    申请号：US13450763

    申请日：2012-04-19

    申请人： Kwo Young ,  Benjamin Reichman ,  Michael A. Fetcenko

    发明人： Kwo Young ,  Benjamin Reichman ,  Michael A. Fetcenko

    IPC分类号： B01J20/02

    CPC分类号： B01J20/02 ,  C01B3/0031 ,  C22C2202/04 ,  Y02E60/327

    摘要： A multi-phase metal hydride alloy material which is capable of reversibly absorbing and desorbing hydrogen includes a first main phase or group of phases having an ABx type crystalline structure and a second phase which has a concentration of a modifier element therein which is greater than the concentration of the modifier element in the first phase or group of phases. The modifier element functions to promote the formation of the second phase and may comprise a light rare earth element such as yttrium. The first phase or group of phases may incorporate one or more Laves phases such as a C14, C15, and/or C36 phase. Further disclosed are metal hydride batteries including the alloys.

    摘要翻译： 能够可逆地吸收和解吸氢的多相金属氢化物合金材料包括具有ABx型晶体结构的第一主相或一组相，其中具有大于其的改性元素的浓度的第二相 修饰剂元素在第一相或一组相中的浓度。 改性剂元素用于促进第二相的形成，并且可以包含轻稀土元素如钇。 第一相或一组相可以包含一个或多个Laves相，例如C14，C15和/或C36相。 还公开了包括这些合金的金属氢化物电池。

    Nickel metal hydride battery design
    10.
    发明授权
    Nickel metal hydride battery design 有权
    镍氢电池设计

    公开(公告)号：US07261970B2

    公开(公告)日：2007-08-28

    申请号：US10887434

    申请日：2004-07-08

    申请人： Kwo Young ,  Cristian Fierro ,  Benjamin Reichman ,  Michael A. Fetcenko ,  John Koch ,  Avram Zallen

    发明人： Kwo Young ,  Cristian Fierro ,  Benjamin Reichman ,  Michael A. Fetcenko ,  John Koch ,  Avram Zallen

    IPC分类号： H01M4/58 ,  H01M4/62

    CPC分类号： H01M10/345 ,  H01M4/0438 ,  H01M4/0445 ,  H01M4/0492 ,  H01M4/242 ,  H01M4/32 ,  H01M4/366 ,  H01M4/383 ,  H01M4/52 ,  H01M4/62 ,  H01M4/621 ,  H01M10/4235 ,  H01M10/446 ,  H01M10/52 ,  H01M2004/027

    摘要： The present invention relates to rechargeable nickel metal hydride batteries and methods for making the same. More particularly, the present invention relates to rechargeable nickel metal hydride batteries having a precharge in the negative electrode sufficient for oxidation prevention in the negative electrode. The present invention discloses a nickel metal hydride battery, wherein the precharge of the negative electrode may be supplied by a variety of sources. The positive active material of the positive electrode may have positive active particles, such as nickel hydroxide, having a precursor coating that incorporates cobalt material capable of forming a conductive network. Sources other than cobalt-containing materials in the positive electrode include hydrogen gas provided directly to the negative active material, nickel aluminum mixed with the negative active material, the etching of the negative active material with an alkaline solution and borohydride chemically charging the negative active material. Preferably, a majority of the precharge of the negative electrode is supplied by sources other than cobalt-containing materials in the positive electrode.

    摘要翻译： 本发明涉及可再充电镍氢电池及其制造方法。 更具体地说，本发明涉及在负极中具有足以在负极中进行氧化防止的预充电的可充电镍金属氢化物电池。 本发明公开了一种镍金属氢化物电池，其中负极的预充电可以由各种源提供。 正极的正极活性材料可以具有正的活性颗粒，例如氢氧化镍，其具有引入可形成导电网络的钴材料的前体涂层。 来自正极中的含钴材料以外的源包括直接设置在负极活性物质上的氢气，与负极活性物质混合的镍铝，用碱性溶液腐蚀负极活性物质和化学充电负极活性物质的硼氢化物 。 优选地，负极的大部分预充电由正极中的含钴材料以外的源供给。