Preparation method of anode of Pb/C super-capacitor battery

Abstract

The invention brings forward a preparation method of an anode of a Pb / C super-capacitor battery, and is aimed at providing a preparation method of an anode, which is high in active substance utilization rate, exhibits good conductivity, high chemical stability, great power properties and low leakage current and can accelerate pole piece storage and release electric energy, of a Pb / C super-capacitor battery. According to the following technical scheme, the method includes the steps: adding 5%-15% modified high specific surface functional active carbon material slurry to an agitator tank, and stirring the slurry for 10-15min; adding 70wt%-90wt% anode active substance lead powder and a 1wt%-20wt% conductive agent to the agitator tank, and stirring the mixture for 5-10min; adding 15wt% deionized water, and stirring the mixture for 15-20min; and finally adding 10%H2SO4 (6mol / L), stirring the mixture for 20min, and then preparing a substance paste body of an anode of an energy storage type or a power type super-capacitor battery. The modified high specific surface functional active carbon material, which has been cleaned by HNO3, H3PO4 and an urea solution of 90-100 DEG C in advance and which loads part of a metallic compound, has the solid content of 15wt%-35wt%.

Description

technical field [0001] The invention relates to a method for preparing an energy storage device-a positive electrode of a supercapacitor battery integrating physical and chemical storage of charges. Background technique [0002] The existing lead-acid batteries have a low utilization rate of the positive electrode active material, poor wettability of the electrode sheet to the electrolyte, severe dehydration, and power density, energy density, service life, and charge storage capacity are much lower than supercapacitor batteries. Supercapacitor battery is a new type of energy storage device with high energy density and high power density. The advantages of both layer capacitors have become one of the research hotspots in recent years. At present, the research on supercapacitors mainly focuses on the preparation of high-performance electrode materials. Because of all the factors affecting the performance of chemical batteries, the performance of electrode materials plays th...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the power density and energy density of the existing lead-acid batteries, increase the service life and charge storage capacity, and solve the problems of low utilization rate of the positive electrode active material of the existing lead-acid batteries, poor wettability of the pole pieces to the electrolyte, and serious dehydration, etc. Disadvantages, the present invention provides a high utilization rate of active materials, good conductivity, high chemical stability, good power characteristics, small leakage current, high energy density, high power density, outstanding low temperature performance, low temperature (-30 ℃) charge and discharge The efficiency is greater than 60%, which can accelerate the storage and release of electric energy of the pole piece, and has a high specific capacity and high specific power. The preparation method of the positive electrode of the Pb / C supercapacitor activated carbon battery