Preparation and characterization of electrolytic and cathodic materials for application in solid state magnesium batteries

This thesis focuses on the analysis, design, and synthesis of novel solid materials for application in magnesium-ion batteries, an emerging alternative to lithium-ion systems driven by the need for safer, more sustainable, and cost effective energy storage technologies. The first part of the work addresses the preparation of the key components of the electrochemical cell, with particular emphasis on cathode and electrolyte materials. Molybdenum and vanadium-based cathodes were synthesized via hydrothermal methods, exploiting their favorable redox properties and ability to reversibly accommodate magnesium ions. In parallel, polyphosphazene-based electrolytes were developed through a multi-step synthetic route involving monomer synthesis, ring-opening polymerization, and subsequent nucleophilic substitution to tailor the polymer properties. The second part of the study is devoted to the comprehensive characterization of the synthesized materials, aiming to establish correlations between structure and performance.