A kind of preparation method of carbon negative electrode plate

Abstract

The invention provides a preparation method of a carbon negative plate electrode, which comprises the following steps: preparation of polyaniline / activated carbon composite material, preparation of nitrogen-doped porous activated carbon, preparation of TiC / yttria / nitrogen-doped porous activated carbon ternary composite material, and preparation of a carbon negative plate electrode. The preparationmethod has the advantages that the hydrogen evolution rate of the carbon negative plate electrode is reduced, the specific capacitance is increased, the problem that the working potentials of the carbon electrode and the lead electrode in the super lead-acid battery are not matched, the hydrogen evolution at the end of charging is serious and the like are solved, and the cycle life of the super lead acid battery is increased. The carbon negative plate electrode is stable in production process, easy to operate, reliable in quality, low in cost, light in weight, recyclable, non-polluting, etc.The material of the carbon negative plate electrode of the super lead acid battery meets the basic requirements of commercialization.

Description

technical field

[0001] The invention relates to a preparation method of a carbon negative electrode plate, which belongs to the field of composite porous materials and electrochemical materials. Background technique

[0002] With the increasing performance requirements of human society for power energy, lead-acid batteries, as an important power source for electric vehicles, need to be improved urgently in terms of specific capacity, charge acceptance and cycle life. In this context, super batteries emerged as the times require and have received extensive attention and research. The so-called super battery, also known as lead-carbon super battery, is a new type of hybrid energy storage power source, which is composed of an asymmetric super capacitor and a lead-acid battery, and has the advantages of both capacitor and battery dual-function energy storage. It not only maintains the high energy density of power batteries, but also has the characteristics of high power density...

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