Method for manufacturing electrode plate of deep-circulation small valve-regulated lead-acid storage battery

Abstract

The invention discloses a manufacturing method of a deep-circulation small valve-regulated lead-acid storage battery pole plate. The manufacturing method comprises the following steps: step 1, preparing a pole plate lead paste formula: lead powder, chemical short fibers and 4BS seed crystals; step 2, performing high-temperature paste mixing; coating the prepared lead paste on the plate grid; 4, spraying acid on the polar plate in the step 3, feeding the polar plate subjected to acid spraying into a drying kiln for surface drying, drying the polar plate in the drying kiln until the water content of the lead plaster on the surface of the grid is 9-12%, and taking out the polar plate; according to the formula provided by the invention, a 4BS seed crystal is added, meanwhile, a high-temperature paste mixing process is used during paste mixing, the lead paste generates 4BS at a high-temperature state, then crystal nucleuses are provided for 4BS when the pole plate is cured, the lead paste continues to grow in the curing process, a large amount of 4BS, 3BS and PbO are generated in the lead paste of the pole plate, a firm framework is formed after formation of 4BS structures, and the lead paste is formed by the lead paste of the pole plate. The binding force of the lead plaster and the grid is enhanced, the loosening and softening speed of the grid lead plaster caused by deep discharge circulation of a polar plate is slowed down, and the cycle life of the battery is prolonged.

Description

technical field [0001] The invention belongs to the technical field of making pole plates of valve-regulated lead-acid batteries, and in particular relates to a method for making pole plates of small deep-cycle valve-regulated lead-acid batteries. Background technique [0002] At present, small valve-regulated lead-acid batteries are mainly used for floating charging purposes such as consumer products and emergency power supplies, and the requirements for the cycle performance of the product are not high. The characteristic of some batteries is that there is no mains power supply. When using them, they are powered by their own supporting batteries. After outdoor use, they will be supplemented with electricity. This kind of use belongs to deep cycle use. With the number of cycles and cycle depth, it becomes softer and softer until it falls off, making the battery invalid. Under the existing conditions, the thickness of the plate can be increased to increase the cycle life of...

AI Technical Summary

Problems solved by technology

The characteristic of some batteries is that there is no mains power supply. When using them, they are powered by their own supporting batteries. After outdoor use, they will be supplemented with electricity. This kind of use belongs to deep cycle use. With the number of cycles and the depth of the cycle, it becomes softer and softer until it falls off, making the battery invalid

Under the existing conditions, the thickness of the plate can be increased to increase the cycle life of the battery, but as the plate becomes thicker, the number of plates and the thickness of the separator will inevitably decrease, the reaction area of ​​the battery will decrease, and the acid content will decrease. , battery performance is bound to be affected

Images