| 摘要 |
PURPOSE:To lengthen the service life of lead storage battery by applying higher voltage than the inter-terminal voltage boosted through a booster chopper be tween the positive or negative plate and another electrode or two other electrodes upon exceeding of the inter-terminal voltage over specific level. CONSTITUTION:Positive end negative plates 1, 2 are arranged through a separator 3 in a battery jar and a cover then fluid electrolyte 6 is filled in the tank 4. A booster chopper 10 is connected to the positive and negative electrode terminals 8, 9 and the electrodes 7, 7' having high oxygen and hydrogen overvoltage. If the terminal voltage 11 is lower than specific level, the voltage detecting section 12 of chopper 10 will stop the operation of booster section 13 while if it higher than specific level, the stop signal from the detecting section 12 is released to operate the booster section 13 while employing the voltage 11 as power source. Consequently, sufficient gas for agitating the electrolyte can be produced from the electrode even at the stage where gas is scarcely produced from the positive and negative electrode under charging, resulting in suppression of decrease of electrolyte and lengthening of service life. |
