Fuel cell hydrogen supply systems using secondary fuel to release stored hydrogen
    1.
    发明授权
    Fuel cell hydrogen supply systems using secondary fuel to release stored hydrogen 有权
    使用二次燃料释放储存的氢的燃料电池氢气供应系统

    公开(公告)号:US06627340B1

    公开(公告)日:2003-09-30

    申请号:US09687718

    申请日:2000-10-13

    Abstract: Hydrogen propelled fuel cell vehicle system designs that reduce the relative cost of releasing hydrogen from hydrogen storage alloys by providing and/or utilizing secondary sources of heat to supply the heat of desorption of stored hydrogen. The secondary source can include combusting conventional secondary (non-hydrogen) fuels. The fuel supply system uses fundamentally new magnesium-based hydrogen storage alloy materials which for the first time make it feasible and practical to use solid state storage and delivery of hydrogen to power fuel cell vehicles. These exceptional alloys have remarkable hydrogen storage capacity of over 7 weight % coupled with extraordinary absorption kinetics such that the alloy powder absorbs 80% of its total capacity within 1.5 minutes at 300° C. and a cycle life of at least 2000 cycles without loss of capacity or kinetics.

    Abstract translation: 氢驱动的燃料电池车辆系统设计通过提供和/或利用二次热源来减少从储氢合金释放氢的相对成本,以提供储存的氢的解吸热。 次级源可以包括燃烧常规的二次(非氢)燃料。 燃料供应系统采用基本上新的镁基储氢合金材料,首次使固体储存和氢气输送到动力燃料电池车辆变得可行和实用。 这些特殊的合金具有超过7重量%的显着的储氢能力,加上非凡的吸收动力学,使得合金粉末在300℃下在1.5分钟内吸收其总容量的80%,并且循环寿命至少为2000个循环而不损失 容量或动力学。

    Magnesium alloys excellent in fluidity and materials thereof
    2.
    发明授权
    Magnesium alloys excellent in fluidity and materials thereof 失效
    流动性优良的镁合金及其材料

    公开(公告)号:US06582533B2

    公开(公告)日:2003-06-24

    申请号:US09777679

    申请日:2001-02-07

    CPC classification number: C22C23/02 B22D17/007 B22D21/007

    Abstract: Magnesium alloys containing, by mass percent, Al: 10.0 to 13.0%, Si: 0.3 to 1.5%, Mn: 0.1 to 1.0%, and, if desired, Zn: less than 0.8%, the rest being Mg and unavoidable impurities. Neither cracking by the casting is invited nor the mechanical property is spoiled, and the fluidity can be notably improved, and it is possible to make products small in thickness and light in weight.

    Abstract translation: 以质量%计含有Al:10.0〜13.0%,Si:0.3〜1.5%,Mn:0.1〜1.0%的镁合金,如果需要,含有Zn:小于0.8%,其余为Mg和不可避免的杂质。 不要求铸件开裂,也不会损害机械性能,并且可以显着提高流动性,并且可以使产品的厚度和重量轻。

    Refined magnesium material and method for producing the same
    3.
    发明授权
    Refined magnesium material and method for producing the same 失效
    精制镁材料及其制造方法

    公开(公告)号:US06444056B1

    公开(公告)日:2002-09-03

    申请号:US08710685

    申请日:1996-09-23

    CPC classification number: C22B26/22

    Abstract: A process for producing a refined magnesium material which is flame retardant by adding an alkaline earth metal. In the process, the dross in a thin film is formed on the surface of the molten magnesium material by contacting it with a dross-formable atmosphere gas while the molten magnesium material is subjected to a vertical vortex flow. The dross encloses the impurity floating on the surface of molten magnesium material through the vortex flow in a vertical direction. The resultant dross is accumulated at the corner of the crucible to prevent the re-diffusion of the impurity. The continuous application of the vortex flow against the molten magnesium material causes the thin film of dross to be continuously formed on the molten magnesium material and adhered thereto so as to enclose the impurity each time it is formed. Accordingly, the molten magnesium material is improved in cleanliness or refined. Solidifying the molten magnesium material by cooling serves to provide an ingot for casting which is extremely reduced in the porosity peculiar to the addition of an alkaline earth metal. Casting such the ingot serves to provide a product having good qualities.

    Abstract translation: 一种生产通过加入碱土金属阻燃的精制镁材料的方法。 在该过程中,通过使熔融镁材料的表面与可浮渣的气氛气体接触,同时熔融的镁材料受到垂直涡流的影响,在薄膜中形成浮渣。 浮渣通过垂直方向的涡流将杂质漂浮在熔融镁材料的表面上。 所得的渣滓积聚在坩埚的拐角处,以防止杂质的再扩散。 涡流相对于熔融镁材料的连续施加导致浮渣薄膜连续地形成在熔融的镁材料上并附着在其上,以便在每次形成时包围杂质。 因此,熔融镁材料的清洁度提高或精制。 通过冷却来固化熔融镁材料用于提供铸造用铸锭,其极大地降低了添加碱土金属所特有的孔隙率。 铸造这种锭用于提供具有良好品质的产品。

    Hydrogen absorbing alloy, method of surface modification of the alloy, negative electrode for battery and alkaline secondary battery
    5.
    发明授权
    Hydrogen absorbing alloy, method of surface modification of the alloy, negative electrode for battery and alkaline secondary battery 失效
    吸氢合金,合金表面改性方法,电池负极和碱性二次电池

    公开(公告)号:US06682609B1

    公开(公告)日:2004-01-27

    申请号:US09270763

    申请日:1999-03-17

    CPC classification number: H01M4/383 H01M6/10 H01M10/345 Y10S420/90

    Abstract: A hydrogen-absorbing alloy which is excellent in stability in an aqueous solution and in mechanical pulverizability is disclosed. This hydrogen-absorbing alloy contains an alloy represented by the following general formula (I): Mg2M1y  (I) wherein M1 is at least one element selected (excluding Mg, elements which are capable of causing an exothermic reaction with hydrogen, Al and B) from elements which are incapable of causing an exothermic reaction with hydrogen; and y is defined as 1

    Abstract translation: 公开了一种在水溶液中的稳定性和机械粉碎性优异的吸氢合金。 该吸氢合金含有由以下通式(I)表示的合金:其中M1是选自(不包括Mg,能够与氢,Al和B发生放热反应的元素)中的至少一种元素, 不能引起与氢的放热反应; y定义为1

    Corrosion resistant magnesium compositions and applications thereof
    6.
    发明授权
    Corrosion resistant magnesium compositions and applications thereof 失效
    耐腐蚀镁组合物及其应用

    公开(公告)号:US06264762B1

    公开(公告)日:2001-07-24

    申请号:US08934597

    申请日:1997-09-22

    CPC classification number: C22C1/0408 C22C23/00

    Abstract: A magnesium alloy material includes magnesium; more than 1 wt. % manganese; and at least one sp-metal selected from the group consisting of zinc, cadmium, mercury, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, and bismuth, wherein the manganese and the at least one sp-metal together are a maximum of 5 wt. % of the alloy material. The magnesium materials are resistant to corrosion and are especially useful in articles exposed to aqueous electrolytes during use or production.

    Abstract translation: 镁合金材料包括镁; 超过1重量 %锰; 以及选自锌,镉,汞,镓,铟,铊,锗,锡,铅,砷,锑和铋中的至少一种sp-金属,其中所述锰和所述至少一种sp-金属在一起 最多为5wt。 %的合金材料。 镁材料耐腐蚀,特别适用于在使用或生产过程中暴露于含水电解质的制品。

    Magnesium alloy and method of producing the same
    9.
    发明授权
    Magnesium alloy and method of producing the same 失效
    镁合金及其制造方法

    公开(公告)号:US06395224B1

    公开(公告)日:2002-05-28

    申请号:US09363880

    申请日:1999-07-30

    CPC classification number: C22C1/03 C22C23/02 C22C23/04

    Abstract: A magnesium alloy of the present invention includes magnesium as a main component, boron of 0.0005 weight % or more, manganese of 0.03 to 1 weight %, and substantially no zirconium or titanium. This magnesium alloy may further include aluminum of 1 to 30 weight % and/or zinc of 0.1 to 20 weight %. Because of appropriate amounts of boron and manganese contained in the magnesium alloy, the grain of the mangnesium alloy is refined.

    Abstract translation: 本发明的镁合金包括镁作为主要成分,硼为0.0005重量%以上,锰为0.03〜1重量%,基本上不含有锆或钛。 该镁合金还可以含有1〜30重量%的铝和/或0.1〜20重量%的锌。 由于镁合金中含有适量的硼和锰,因此精炼镁合金的晶粒。

    Modified magnesium based hydrogen storage alloys
    10.
    发明授权
    Modified magnesium based hydrogen storage alloys 有权
    改性镁基储氢合金

    公开(公告)号:US06328821B1

    公开(公告)日:2001-12-11

    申请号:US09444812

    申请日:1999-11-22

    Abstract: A magnesium based hydrogen storage alloy powder which is useful as a hydrogen supply material for powering internal combustion engine or fuel cell vehicles. The alloy contains greater than about 85 atomic percent magnesium, about 2-8 atomic percent nickel, about 0.5-5 atomic percent aluminum and about 2-7 atomic percent rare earth metals or mixtures of rare earth metals. The rare earth elements may be Misch metal and may predominantly contain Ce and/or La. The alloy may also contain about 0.5-5 atomic percent silicon. The alloys can be modified to store more than 4 wt. % hydrogen, with a reduced hydride bond strength (i.e. about 64 kJ/mole) which allows for economic recovery of the stored hydrogen. Also, they have a plateau pressure about two times greater than pure Mg and comparable bond energies and plateau pressures to Mg2Ni alloys, while reducing the amount of incorporated nickel by 25-30 atomic %. Also, the storage capacity of the alloy is significantly greater than the 3.6 wt. % of Mg2Ni material.

    Abstract translation: 一种镁基储氢合金粉末,其可用作为内燃机或燃料电池车辆供电的氢供应材料。 该合金含有大于约85原子%的镁,约2-8原子%的镍,约0.5-5原子%的铝和约2-7原子%的稀土金属或稀土金属的混合物。 稀土元素可以是杂质金属,并且可以主要含有Ce和/或La。合金还可以含有约0.5-5原子%的硅。 可以将合金改性以储存超过4wt。 %氢,具有降低的氢化物键强度(即约64kJ /摩尔),其允许储存的氢的经济回收。 此外,它们的平台压力比纯Mg高大约两倍,并且对Mg2Ni合金具有相当的粘结能和平台压力,同时将引入的镍的量减少25-30原子%。 此外,合金的储存容量明显大于3.6wt。 %的Mg2Ni材料。

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