Method for modifying positive electrode plate of lead storage battery with polyaniline

Abstract

The invention discloses a method for modifying a positive electrode plate of a lead storage battery with polyaniline. According to the method, aniline is added into battery formation liquid in a battery formation process of the positive electrode plate of the lead storage battery and generates oxidation reaction at the positive electrode plate to generate polyaniline so as to the modify positive electrode plate of the lead storage battery, and a positive electrode plate grid and a positive electrode active substance of the battery are modified by virtue of polyaniline when a lead compound on the positive electrode plate is converted into lead dioxide, so that the performance of the lead storage battery is improved; and aniline is added into the battery formation liquid in the battery formation process of the positive electrode plate of the lead storage battery and generates oxidation reaction at the positive electrode plate to generate polyaniline so as to modify the positive electrodeplate of the lead storage battery, and the positive electrode plate of the battery is modified by virtue of polyaniline when the lead compound on the positive electrode plate is converted into lead dioxide, so that the performance of the lead storage battery is improved. The preparation method of the positive electrode plate of the lead storage battery is simple; certain conductive polyaniline can be easily to be uniformly and quantitatively doped into an electrode material, so that the regulation and control of the surface performance of the electrode are realized; and the equipment investment is low, the process is greatly improved, the method can be applied to different electrodes, the large-scale industrialization is promoted, and the regulation and control of the surface performanceof the electrode are realized.

Description

technical field [0001] The invention belongs to the technical field of preparation of positive plates of lead storage batteries, and relates to a method for modifying the positive plates of lead storage batteries with polyaniline. Background technique [0002] 1. Lead storage battery [0003] Lead-acid batteries have the advantages of simple structure, convenient use, reliable performance, and low price. Therefore, they are widely used in various sectors of the national economy. They have always been the product with the largest output and wide application range in chemical power sources. In terms of R&D and application, the performance of lead-acid batteries has been greatly improved, and the advantages of new lead-acid batteries in some special application fields have become more apparent. As electric mopeds, special electric vehicles, and new-type automobile power supplies, they are still mainstream power supplies in the near future. However, the high-current discharge c...

AI Technical Summary

Problems solved by technology

However, as the positive electrode active material of lead-acid battery lead dioxide, especially when the lead-acid battery is in the process of fast charging and discharging, more importantly, in the process of dynamic charging and discharging (such as in the process of starting, fast charging, etc. of electric vehicles), the most The fast and effective method is to use capacitor technology for fast charging and discharging. Obviously, it is difficult to meet the requirements of fast charging and discharging by using rare earth elements to improve the performance of electrode materials.