| dc.description.abstract | The use of lithium batteries has become more widespread and popular since the 21st century, and reducing its manufacturing costs and damage to the environment has been one of the main directions of many efforts in recent years. In this experiment, we tried two natural dyes that are similar in structure and have been used for thousands of years in human history, alizarin and indigo, and used them as materials to make lithium battery electrodes and explore their efficiency. They are mainly divided into two parts.
The first part is to discuss the material, use X-ray diffraction to study the sample, and then analyze the sample through GSAS to obtain the particle size of alizarin and indigo moreover determine the actual structure.
The second part is to make a battery and try as well as look into the battery charge and discharge cycle efficiency. The first attempt is to change the metal foil material of the electrode itself, and compare the efficiency of the battery under the different electrode substrate materials of copper foil and aluminum foil. The second attempt is to dope nickel nanoparticles during the production of the battery electrode, uniformly mix the nickel nanoparticles with the sample to make a battery electrode, and compare the efficiency of the battery with or without nickel nanoparticles.
The results show that when copper foil is used as the electrode , compared with aluminum foil, it generally improves the charging and discharging performance of alizarin and indigo lithium batteries, and does not interfere with the electrochemical reaction of the sample. However, when aluminum foil is used as the electrode, it will interfere with the electrochemical reaction of indigo. Then compared with the doped and undoped, the charging and discharging performance of the alizarin and indigo lithium batteries are generally improved. However, in the case of aluminum foil electrodes, doped nickel nanoparticles have a lowering effect on the performance of the alizarin lithium battery. | en_US |