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1. 发明授权

US06242886B1 Apparatus and method for automatic recovery of sulfated lead acid batteries 失效
标题翻译：硫酸铅酸电池自动回收装置及方法
公开(公告)号：US06242886B1
公开(公告)日：2001-06-05
申请号：US09426372
申请日：1999-10-25
申请人： Thirumalai G. Palanisamy , Harmohan Singh , Bernard P. Gollomp
发明人： Thirumalai G. Palanisamy , Harmohan Singh , Bernard P. Gollomp
IPC分类号： H01M650
CPC分类号： H02J7/0075
摘要： Apparatus and method for automatic recovery of sulfated lead acid batteries rely on monitoring battery voltage, current and internal resistance during battery charging. The lead acid battery is recovered for usage by measuring the internal resistance to see if it is so high such that the battery is unrecoverable, or so low such that the normal charging methods can be used. If the internal resistance is between the two limits, the battery receives a first constant charge current. As the lead acid battery is being charged slowly by a constant charge current, the battery voltage is measured. The decrease in the internal resistance (IR) of the battery causes the battery voltage to decrease during charging, while the charging causes the battery voltage to increase. According to the present invention, if it is detected that the battery voltage has reached the minimum voltage and begun to increase in a predetermined period of time, the charge current is substantially increased (e.g., doubled) because the capability of the lead acid battery to accept a higher charge current has increased. As the charge current is increased, the recovery and charging of the lead acid battery arc advantageously more expedient and efficient.
摘要翻译：硫酸铅酸电池的自动回收装置和方法依靠电池充电期间的电池电压，电流和内部电阻的监测。铅酸电池通过测量内部电阻来恢复使用，以观察其是否如此高，使得电池不可恢复，或者如此低，使得可以使用正常的充电方法。如果内部电阻在两个极限之间，电池将接收第一个恒定的充电电流。由于铅酸电池通过恒定的充电电流被缓慢充电，所以测量电池电压。电池内部电阻（IR）的降低导致充电期间电池电压降低，而充电会导致电池电压升高。根据本发明，如果检测到电池电压已经达到最小电压并且在预定时间段内开始增加，则充电电流显着增加（例如，加倍），因为铅酸电池的能力接受较高的充电电流已经增加。随着充电电流的增加，铅酸蓄电池的恢复和充电有利地更方便和有效。

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