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    • 68. 发明授权
    • Method for producing a nickel metal-hydride storage battery
    • 镍氢蓄电池的制造方法
    • US06669742B2
    • 2003-12-30
    • US10090901
    • 2002-03-04
    • Masato OnishiKatsuyuki TomiokaNoriyuki FujiokaMunehisa Ikoma
    • Masato OnishiKatsuyuki TomiokaNoriyuki FujiokaMunehisa Ikoma
    • H01M600
    • H01M2/0277H01M2/12H01M2/30H01M10/0413H01M10/345H01M10/44H01M10/446H01M10/613H01M10/647H01M10/6556H01M10/6557Y02E60/124Y02P70/54Y10T29/49108Y10T29/5168
    • A method for producing a nickel metal-hydride storage battery includes: (i) assembling a battery by enclosing the positive electrodes, the negative electrodes, separators, and an electrolyte in a case; (ii) charging the battery with electric current in a range of 0.05 C (ampere) to 0.2 C (ampere) until a state of charge rises to a range of 10% to 30%; (iii) overcharging the battery that has been subjected to the charging, with electric current in a range of 0.2 C (ampere) to 1 C (ampere), and thereafter discharging the same until the state of charge lowers to 10% or below; and (iv) subjecting the battery after overcharging to a plurality of charging-discharging cycles, each charging-discharging cycle being composed of charging the battery that has been subjected to the overcharging, with electric current in a range of 0.2 C (ampere) to 5 C (ampere) until the state of charge rises to a range of 60% to 95%, and discharging the same until a battery voltage lowers to a range of 0.70 V to 1.05 V. In this method, in the charging-discharging cycles, the battery is cooled with a coolant at a temperature in a range of 30° C. to 60° C. This method makes it possible to produce a nickel metal-hydride storage battery at high productivity and low cost.
    • 一种镍氢蓄电池的制造方法,其特征在于,包括:(i)将壳体内的正极,负极,隔板和电解质包围而组装电池; (ii)以0.05C(安培)至0.2C(安培)的范围内的电流对电池充电,直到电荷上升到10%至30%的范围; (iii)以0.2C(安培)至1C(安培)的范围内的电流对已进行充电的电池进行过充电,之后将其放电至充电状态下降至10%以下; 和(iv)在过充电之后对多个充电 - 放电循环进行电池充电,每个充电 - 放电循环包括对经过过充电的电池进行充电,其电流范围为0.2℃(安培)至 5安培,直到充电状态上升到60%至95%的范围,并将其放电至电池电压降至0.70V至1.05V的范围内。在该方法中,在充电 - 放电循环 ,电池在30℃至60℃的温度范围内用冷却剂冷却。这种方法使得可以以高生产率和低成本生产镍氢蓄电池。