Electrode Modification in Supercapacitors For Early Charging And Discharge Of Batteries

Abstract

Electrical energy has become an indispensable part of today's human life. While the need for electrical energy increases with developing technology, fossil fuels are decreasing and approaching the point of exhaustion. For this reason, interest in renewable and non-renewable energy sources is increasing day by day. The importance of energy storage systems is increasing day by day due to the fact that the areas where renewable energy resources are obtained are far from the consumption centers, are irregular and have errors in weather forecasts.

Electrical energy storage systems are used in environmentally friendly system technologies and electric vehicles to increase efficiency by correcting system fluctuations. These systems are capacitors and super (Ultra) capacitors. Supercapacitors, also called ultra-capacitors, are capacitors with large capacity values ​​and have become a newly used energy storage area today.

Our aims in this study are to determine the effects of the materials we obtained with different variables on the capacitance performance by changing the calcination temperature and nitrogen ratios and to determine the composition of the carbon nanotubes and tubes that will be used in electrochemical analysis in the study. Supercapacitors are a newly developing topic in the world. Based on its potential, we can say that interest in this subject will increase in the future.

The direct calcination method was used for the electrode modification materials used in this project. The method we follow is ecosystem-friendly, fast and easy.

Although there are many electrode modification materials on the market, they are costly and dangerous to the environment. Therefore, in this project, the calcination method of sodium aliginate and ammonium sulfite powder, which performs direct carbonization with carbon quantum dots and carbon nanofibers, was applied. As a certain surface area increases, a certain capacitance value will increase, and in this way, the capacitance of the material will approach the theoretical capacitance value. In this way, the problem of uneven diffusion in the solution caused by multi-walled carbon nanotube dispersion in the solution has been largely corrected.