Development of Activated Liquid for Degraded Lead-Acid Batteries in Substations

The sign that lead-acid batteries used in substations age faster than their service life has become obvious. Aiming at this phenomenon, the reasons for the deterioration are analyzed in this paper. Based on the theory of lead-acid battery product regeneration and repair, an activated liquid is developed to repair the batteries using the high-current constant-voltage charging method. The test results show that the activated battery capacity has increased by 20%, the internal resistance of the battery has been reduced, and the service life has been extended to 22 months, achieving the repair of the degraded batteries. The promotion of this method can realize the recycling of resources, bringing greater economic benefits to the enterprises, and help solve environmental problems.