Medium or large scale sealed metal oxide/metal hydride battery
    1.
    发明授权
    Medium or large scale sealed metal oxide/metal hydride battery 失效
    中型或大型密封金属氧化物/金属氢化物电池

    公开(公告)号:US5455125A

    公开(公告)日:1995-10-03

    申请号:US330603

    申请日:1994-10-28

    摘要: A sealed storage battery for use in potable power supply is improved by using metal oxide-hydrogen storage alloy to have a higher capacity and a smaller weight. The battery has a structure which comprises a combination of a positive electrode having a high energy density in a wide range of temperature and consisting of a bulk high porosity body filled with an active material composed of solid solutions such as typical Co solid solution, oxide powders such as typically Ca(OH).sub.2 and ZnO, with an addition of graphite for rendering the electrode reaction effective; and a high capacity negative electrode of hydrogen storage alloy having a reduced equilibrium hydrogen pressure, and where the aforementioned characteristics at high temperatures are further enhanced by an electrolyte suitable to high temperatures, short-circuits are prevented by a chemically stable separator, and a structure sealing a container and a safety vent is excellent in air-tightness and reliability.

    摘要翻译: 通过使用金属氧化物 - 储氢合金具有更高的容量和更小的重量,改善了用于饮用电源的密封蓄电池。 电池具有包括在宽温度范围内具有高能量密度的正电极的组合的结构,该组合体由填充有固体溶液例如典型的Co固溶体,氧化物粉末的活性材料的体积高的孔隙体组成 例如通常为Ca(OH)2和ZnO,添加石墨以使电极反应有效; 以及具有降低的平衡氢压的高容量负极的储氢合金,并且其中通过适合于高温的电解质进一步提高上述高温特性,通过化学稳定的隔膜来防止短路,并且结构 密封容器和安全气囊具有优异的气密性和可靠性。

    Alkaline storage battery
    4.
    发明授权
    Alkaline storage battery 失效
    碱性蓄电池

    公开(公告)号:US5346781A

    公开(公告)日:1994-09-13

    申请号:US646012

    申请日:1991-01-28

    CPC分类号: H01M4/242 H01M4/383 H01M4/808

    摘要: Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.

    摘要翻译: 公开了一种碱性蓄电池,其中负极由能够电化学吸收/解吸氢的吸氢合金构成,并且在负极表面和隔板之间的空间中设置疏水材料,同时亲水材料 设置在负极的内部,从而适当地确保负极的润湿性和表面疏水性相对于碱性电解液。 因此,在电池充电中产生的氢气可以通过暴露于气相的负极表面中的疏水部分中的气相反应吸收,并且可以在负极的部分电化学吸收 被电解液润湿,从而可以降低电池的内部压力,从而可以进行快速充电。

    Alkaline storage battery
    5.
    发明授权
    Alkaline storage battery 失效
    碱性蓄电池

    公开(公告)号:US5250369A

    公开(公告)日:1993-10-05

    申请号:US952146

    申请日:1992-09-28

    CPC分类号: H01M4/383 H01M4/242 H01M4/808

    摘要: Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the Portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.

    摘要翻译: 公开了一种碱性蓄电池,其中负极由能够电化学吸收/解吸氢的吸氢合金构成,并且在负极表面和隔板之间的空间中设置疏水材料,同时亲水材料 设置在负极的内部,从而适当地确保负极的润湿性和表面疏水性相对于碱性电解液。 因此,在电池充电中产生的氢气可以通过在暴露于气相的负极表面的疏水部分中的气相反应吸收,并且可以在负极的部分中被电化学吸收 被电解液润湿,从而可以降低电池的内部压力,从而可以进行快速充电。

    Sealed type nickel-hydride battery and production process thereof
    6.
    发明授权
    Sealed type nickel-hydride battery and production process thereof 失效
    密封型镍氢电池及其制作方法

    公开(公告)号:US4935318A

    公开(公告)日:1990-06-19

    申请号:US171739

    申请日:1988-03-22

    IPC分类号: H01M4/38 H01M4/52 H01M10/34

    摘要: A sealed type nickel-hydride battery comprising a positive electrode made of nickel oxides and/or Ni(OH).sub.2 as an active material, a negative electrode made of hydrogen storage alloys as main materials which may absorb and desorb hydrogen as an active material electrochemically, an alkaline electrolyte, and a separator. Prior to sealing in a battery case, the positive electrode contains cobalt and/or cobalt hydroxide having an oxidation potential lower than that of nickel hydroxide and the negative electrode is not subjected to a sufficient precharge as required for the substantial battery capacity to be limited by the capacity of the positive electrode. The battery is sealed in this state, and at an initial charge, the cobalt and/or cobalt oxides are charged and a precharged section absorbed hydrogen is formed in a negative electrode corresponding to the charge capacity of the cobalt and/or cobalt oxides.

    Method of making a separator material for a storage battery
    8.
    发明授权
    Method of making a separator material for a storage battery 失效
    制备蓄电池隔板材料的方法

    公开(公告)号:US5213722A

    公开(公告)日:1993-05-25

    申请号:US795141

    申请日:1991-11-20

    IPC分类号: H01M2/16

    CPC分类号: H01M2/162

    摘要: A method for making a separator material which is useful as a separator for storage batteries. The method involves applying a sulfonated surface layer to polyolefin resin fibers which form a woven or non-woven fabric. According to one embodiment, polyolefin resin fibers made of a first polyolefin resin are coated with a surface layer of a second polyolefin resin which is more susceptible to sulfonation than the first polyolefin resin from which said fibers are made. At the stage when the polyolefin fibers are coated with the second polyolefin resin they may be either individual fibers or formed into a woven or non-woven fabric. Thereafter, the fibers are subjected to a sulfonation process until the surface layer is sulfonated and a decomposition product formed by the sulfonation process is then removed from the fibers to obtain a separator material.

    摘要翻译: 一种隔膜材料的制造方法,其可用作蓄电池的隔板。 该方法包括将磺化表面层施加到形成织造或非织造织物的聚烯烃树脂纤维上。 根据一个实施方案,由第一聚烯烃树脂制成的聚烯烃树脂纤维涂覆有比制备所述纤维的第一聚烯烃树脂更易于磺化的第二聚烯烃树脂的表面层。 在聚烯烃纤维被第二聚烯烃树脂涂覆的阶段,它们可以是单独的纤维,也可以形成织造或非织造织物。 此后,对纤维进行磺化处理直到表面层被磺化,然后从纤维中除去通过磺化过程形成的分解产物,从而获得隔板材料。