Grid alloy and diachylon formula of battery plate of electrombile

Abstract

The invention relates to a grid alloy and a diachylon formula of a battery plate of an electrombile. The grid alloy of the positive electrode comprises the following components by weight: 1.3-1.5% of tin, 0.07-0.09% of calcium, and 0.01-0.03% of aluminum; the grid alloy of the negative electrode comprises the following components by weights: 0.6-0.8% of tin, 0.09-0.11% of calcium and 0.01-0.03% of aluminum; the diachylon formula comprises the following components by weight: 1000kg of lead powder served as the main material, and additive auxiliary materials including 0.2-0.3% of active carbon, 0.1-0.12% of short fiber, 0.1-0.12% of stannous mono-sulphate, and 0.2-0.22% of antimonous oxide; and the materials for mixing are as follows 11.0%-11.5% of pure water, 10.5-11.0% of sulfuric acid with 1.40g / ml under 25 DEG C based on the concentration. The pollution of the cadmium to the environment is removed; the stannous mono-sulphate and the antimonous oxide are added to the diachylon formula; and a high-temperature high-humidity solidifying technology is adopted, so that the strength of the polar plate is ensured, and the circulating capacity of a battery can be improved.

Description

technical field [0001] The invention belongs to the technical field of environment-friendly power supplies, and relates to a grid alloy and a lead paste formula for electric vehicle battery pole plates. Background technique [0002] Electric vehicle batteries are required to have the characteristics of large capacity, long life, less water loss, good sealing performance, strong charge acceptance and less self-discharge. At the same time, two or three batteries for electric vehicles are used in series, so they are also required to be consistent. Good sex. The lead paste used to manufacture this kind of battery has its particularity. Firstly, it is required to have a high utilization rate of the active material so as to achieve a large capacity; secondly, it is required that the active material of the positive electrode is not easy to soften and the active material of the negative electrode is not easy to be sulfated during use. The combination degree of the grid is better, a...

AI Technical Summary

Problems solved by technology

[0006] The grid of the existing above-mentioned pole plate cannot meet the requirements of electric vehicle batteries. The lead paste of the above-mentioned existing batteries has low utilization rate of active materials and small capacity. During use, the positive active material is easy to soften, and the negative active material is easy to Sulfation, and the degree of combination with the grid is poor, easy to fall off, that is, the deep cycle capacity is weak