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    • 10. 发明授权
    • Method for preparing electrodes for Ni/Metal hydride secondary cells using Cu
    • 使用Cu制备Ni /金属氢化物二次电池电极的方法
    • US06372383B1
    • 2002-04-16
    • US09494596
    • 2000-01-31
    • Jai Young LeeKuk Jin JangDong Myung KimJi Sang YuSang Min LeeHo Lee
    • Jai Young LeeKuk Jin JangDong Myung KimJi Sang YuSang Min LeeHo Lee
    • H01M466
    • H01M4/621H01M4/383H01M4/661H01M4/663
    • Disclosed is a method for preparing a high performance, negative electrode for Ni/metal hydride cells. A Zr-based hydrogen storage alloy, a binder comprising a mixture of polytetrafluoroethylene and 50th and a thickening agent (hydroxypropylmethyl cellulose), and a current collector comprising carbon black and copper are slurried and molded into a paste-type electrode. In a closed type cell, the copper repetitively undergoes melting and deposition on the electrode during charging and discharging cycles, allowing the electrode to show a similar change in surface morphology and electrochemical properties to that of a conventionally electroless plated electrode. Giving a contribution to the improvement in cell properties, including inner cell pressure, high rate dischargeability and energy density per volume, the method can substitute conventional alloy surface modifying methods, such as electroless plating methods and other pre-treatment processes necessary for the preparation of electrodes, which are difficult to practice owing to the production of pollution of the environment and to requirement of additional procedures.
    • 公开了一种制备用于Ni /金属氢化物电池的高性能负极的方法。 将Zr基储氢合金,包含聚四氟乙烯和第五十五的混合物的粘合剂和增稠剂(羟丙基甲基纤维素)以及包含炭黑和铜的集电体制成浆料并模制成糊状电极。 在封闭式电池中,铜在充电和放电循环期间重复地在电极上熔化和沉积,使得电极表现出与常规无电电镀电极的表面形态和电化学性质相似的变化。 为了改善电池性能,包括内电池压力,高放电率和每体积能量密度的改善,该方法可以代替常规合金表面改性方法,如化学镀方法和制备所需的其他预处理工艺 电极,由于生产环境污染而难以实施,并且需要额外的程序。