Stabilized anode for lithium battery and method for its manufacture
    41.
    发明授权
    Stabilized anode for lithium battery and method for its manufacture 有权
    锂电池稳定阳极及其制造方法

    公开(公告)号:US09490473B2

    公开(公告)日:2016-11-08

    申请号:US13369746

    申请日:2012-02-09

    申请人: Kwo Young

    发明人: Kwo Young

    摘要: Disclosed is an anode for a lithium battery comprising a body of carbon, such as graphitic carbon, having a layer of a Group IV element or Group IV element-containing substance disposed upon its electrolyte contacting surface. Further disclosed is an anode comprising a body of carbon having an SEI layer formed thereupon by interaction of a layer of Group IV element or Group IV element-containing substance with an electrolyte material during the initial charging of the battery.

    摘要翻译: 公开了一种锂电池的阳极,其包含碳体,例如石墨碳,其具有设置在其电解质接触表面上的IV族元素或IV族元素物质层。 还公开了一种阳极,其包括在电池初始充电期间通过IV族元素或IV族元素物质层与电解质材料的相互作用形成有SEI层的碳体。

    Metal hydride alloys having improved activation and high rate performance
    42.
    发明授权
    Metal hydride alloys having improved activation and high rate performance 有权
    具有改善的活化和高速率性能的金属氢化物合金

    公开(公告)号:US09272259B2

    公开(公告)日:2016-03-01

    申请号:US13450763

    申请日:2012-04-19

    IPC分类号: H01K1/56 B01J20/02 C01B3/00

    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。

    NdNi5 alloys for hydrogen storage and Ni-MH batteries
    43.
    发明申请
    NdNi5 alloys for hydrogen storage and Ni-MH batteries 有权
    用于氢存储的NdNi5合金和Ni-MH电池

    公开(公告)号:US20120141319A1

    公开(公告)日:2012-06-07

    申请号:US12928109

    申请日:2010-12-02

    IPC分类号: C22C19/03

    摘要: A hydrogen storage alloy having the atomic formula AB4.75-5.25. Where A may comprise at least 85 atomic percent Nd and less than 15 atomic percent other rare earth elements and Mg and B may comprise Ni, Co, and at least one element selected from the group consisting of Mn and Al. The atomic percentages of Mn and Al may be governed by the following formulas where Mn and Al are in atomic percent: 1) Mn+1.5 Al≧6 atomic percent; and 2) Mn+Al≦12 atomic percent. The total percent of Mn and Al may provide the alloy with a 20° C. plateau pressure of between 4 and 25 psi, preferably between 6 and 20 psi. The hydrogen storage alloy allows a nickel metal hydride battery into which it is incorporated to maintain a voltage of at least 1.2 V at a depth of discharge of 90%.

    摘要翻译: 一种具有原子化学式AB4.75-5.25的储氢合金。 其中A可以包含至少85原子%的Nd和小于15原子%的其它稀土元素,并且Mg和B可以包含Ni,Co和至少一种选自Mn和Al的元素。 Mn和Al的原子百分比可以由下式表示:Mn和Al的原子百分比:1)Mn +1.5Al≥6原子% 和2)Mn + Al≦̸ 12原子%。 Mn和Al的总百分比可以为合金提供在4和25psi之间,优选在6和20psi之间的20℃平台压力。 储氢合金允许其中所掺入的镍金属氢化物电池在放电深度为90%时保持至少1.2V的电压。

    Hydrogen storage alloys having improved cycle life and low temperature operating characteristics
    46.
    发明授权
    Hydrogen storage alloys having improved cycle life and low temperature operating characteristics 有权
    具有改善循环寿命和低温操作特性的储氢合金

    公开(公告)号:US07393500B2

    公开(公告)日:2008-07-01

    申请号:US10817267

    申请日:2004-04-02

    IPC分类号: C22C30/00 H01M4/38

    摘要: Electrochemical and gas phase hydrogen storage alloy compositions that provide superior performance, especially at low temperature, and excellent cycle life characteristics. The alloys of this invention are AB5 type alloys that include a cycle life enhancement element and a low Co concentration. The preferred cycle life enhancement elements include Zr and Si. The cycle life enhancement elements increase the cycle life of the instant alloys by reducing the pulverization of alloy particles upon repeated cycles of charging-discharging or hydriding-dehydriding. The alloys are characterized by low hysteresis on cycling, where hysteresis is measured in terms of mass concentration difference, a parameter related to the activation energy associated with the incorporation of hydrogen into the alloy. The instant alloys are designed to have a low activation energy for hydrogen incorporation and as a result, provide low hysteresis and a more uniform concentration of absorbed hydrogen within the material. As a result, differential lattice expansion effects associated with the absorption of hydrogen are minimized and the tendency for particle pulverization on cycling is minimized. Alloys having a low Co concentration and long cycle life are thus provided for.

    摘要翻译: 电化学和气相储氢合金组合物,特别是在低温下,具有出色的循环寿命特性。 本发明的合金是包括循环寿命增强元件和低Co浓度的AB 5 N 5型合金。 优选的循环寿命增强元件包括Zr和Si。 循环寿命增强元件通过在重复循环充放电或氢化 - 脱氢处理中减少合金颗粒的粉碎来增加本合金的循环寿命。 合金的特征在于循环时的滞后小,其中以质量浓度差为单位测量滞后,这是参与与将氢结合到合金中的活化能相关的参数。 本发明的合金被设计为具有低的氢引入活化能,因此,提供低滞后和在材料内吸收的氢的更均匀的浓度。 结果,与氢的吸收相关的差异晶格膨胀效应被最小化,并且使循环的颗粒粉碎的趋势最小化。 因此提供具有低Co浓度和长循环寿命的合金。