Electrode materials for Li-ion batteries based on diatomite

Abstract

Energy is a fascinating field that has been developing rapidly for many years. Various articles about alternative energy sources, batteries, and supercapacitors are being published today. This article is about the lithium-ion battery. The batteries come with three specific parts, one of which is the anode. In this area, electrons accumulate, which provide power to electrical devices. Since 2011, graphite anodes have been most commonly used in lithium batteries. Silicon is a tempting proposition for scientists working on next-generation lithium batteries with the potential to hold many times more energy than graphite. Silicon is a promising material for the anodes of lithium-ion batteries of a new generation since, in the process of electrochemical introduction, it can accumulate a large amount of lithium (up to 4.4 Li atoms per Si atom) and provide very high values of specific capacity (4200 mAh/g). The present article overviews the prospects for using diatomaceous earth (DE) (from the Mugalzhar region) in the continuous expansion of energy science and technology. Environmentally friendly silicon dioxide and silicon production, diatomaceous earth has the necessary nano-microstructure, which offers the advantages inherent in existing and new applications in electrochemistry, catalysis, optoelectronics, and biomedical engineering. Silicon, silicon, and silicon-based materials are useful for energy storage and storage applications. Also, for comparison, the surface of the DE was modified with nanotubes. The electrode material has been characterized by EDAX, SEM, BET, and electrochemical techniquesс. The results obtained showed the advantage of modified diatomite (specific surface area – 188.9 m2/g and particular capacity of the battery – 120 mA⋅h⋅g–1) compared to unmodified (specific surface area – 39.1 m2/g and a particular degree of the battery – 100 mA⋅h⋅g –1).