Promising Cathode Material Based on Inorganic Nanocomposites for Li+-intercalation Current Generation

Abstract

This work develops a new approach to the synthesis of nanocomposites and their study as effective materials for lithium current sources. This paper proposes a unique method that allows obtaining stable composite materials in which nanosized MoS2 particles are fixed in the pores of SiO2. To obtain nanocomposites with preset morphological characteristics, the method of hydrothermal synthesis is used, followed by modification of the surface of nanoparticles with functional polymers via polymerization initiated from the particle surface. TEM, impedance spectroscopy, and computer simulation of an equivalent electrical schema are used to characterize such materials before and after grafting a functional polymer shell onto their surface. The prospects of using synthesized composites as cathode materials of lithium current sources, as well as the possibility of controlling the structure and size of the inorganic nucleus and a functional polymer shell, are proved. The kinetics and thermodynamics of Li+-intercalation current generation are studied.