A new method for charging and repairing Lead-acid batteries

Abstract

With the rapid development of China's electric vehicle industry, the demand for vehicle-mounted lead-acid batteries is increasing, and higher requirements are put forward for their safety and reliability. There are some problems in lead-acid batteries, such as short service life and decreasing capacity. In this paper, a new method of charging and repairing lead-acid batteries is proposed. Firstly, small pulse current is used to activate and protect the batteries in the initial stage; when the current approaches the optimal current curve, the phase constant current charging is used instead, when the voltage is low. When the value is in stable state, the polarization and vulcanization phenomena of batteries in the earlier stage can be eliminated by using the composite resonant pulse repair technology. When the vulcanization and polarization phenomena are eliminated successfully, the REFLEXYM charging method is carried out immediately to protect the batteries, and the batteries can be controlled by intermittent charging at this stage. The phenomenon of temperature rise is helpful to prolong the life of the battery. Finally, it enters the floating charging stage, providing a very small trickle current to compensate for the self-loss of the battery, so that the battery can remain fully charged. This new charging and repairing method can not only eliminate the polarization and vulcanization of the battery, but also control the temperature rise of the battery, which can extend the service life of the battery. This paper gives the specific methods to solve the polarization and vulcanization of batteries and the working principle of each charging stage.