Container formation lead-acid battery technology

Abstract

The present invention discloses a container formation lead-acid battery technology, comprising the following process steps: firstly manufacturing a lead powder and a grid, mixing lead powder, dilute sulfuric acid and an additive, coating the mixture on the grid surface, drying and solidifying to form a positive pole plate and a negative pole plate. The positive pole plate and the negative pole plate are reacted with dilute sulphuric acid under the action of direct current to generate active substance by a redox reaction. The positive electrode plate and the negative plate used for battery assembly are formed by washing and drying. Finally based on an interval arrangement principle, a partition plate is arranged between the positive electrode plate and the negative plate to prepare into an electrode crowd which is then filled into a battery casing. The grid is manufactured by using continuous casting and rolling. The container formation lead-acid battery technology can reduce gravimetric specific energy thereof under the premise of reducing the total weight of the battery, and improve the utilization rate of active materials. The increase of amount of electrolyte helps to increase the thermal capacity of the battery. The disadvantage of battery capacity limited by the electrolyte is prevented, and the probability of thermal runaway is also effectively reduced, so that the product is suitable for southern hot regions.

Description

technical field [0001] The invention relates to a process for internalizing lead-acid batteries. Background technique [0002] The process design of conventional power type internalized lead-acid batteries mainly adopts square grid grid design, the positive and negative active material ratio is 1:0.75~0.85, the grid to active material ratio is 0.32~0.34:1, and the acid content of the battery adopts lean Liquid design: the acid content per AH is 8ml, resulting in the increase of lead material weight per unit volume, less electrolyte content, battery capacity and cycle life are limited by the amount of electrolyte. Contents of the invention [0003] The problem to be solved by the present invention is to provide a process for internalizing lead-acid batteries, which can reduce the weight of the batteries, increase the specific energy by weight, and reduce the manufacturing cost. [0004] In order to solve the above-mentioned technical problems, the present invention adopts ...

AI Technical Summary

Problems solved by technology

[0002] The process design of conventional power type internalized lead-acid batteries mainly adopts square grid grid design, the ratio of positive and negative active materials is 1:0.75~0.85, the ratio of grids to active materials is 0.32~0.34:1, and the battery acid content adopts lean Liquid design: the acid content per AH is 8ml, resulting in an increase in the weight of the lead material per unit volume, less electrolyte content, and battery capacity and cycle life are limited by the amount of electrolyte