A New Approach to the Synthesis of Fine Powders of Lithium Nickel and Lithium Cobalt Double Phosphates with a Desired Morphology

Abstract

The paper presents a new low-temperature method for the synthesis of fine powders of double phosphates LiCoPO₄ and LiNiPO₄ using a low-waste technology. It has been shown that the morphology and particle size distribution of the synthesized materials are determined by the type of precursor used. The resulting compounds are characterized by chemical analysis, X-ray powder diffraction analysis, scanning electron microscopy, cyclic voltammetry, and cyclic chronopotentiometry. The new approach to the synthesis of submicron powders of lithium and transition metal (nickel or cobalt) double phosphates is more efficient than the existing conventional methods.