Development of a new combined approach to the synthesis of a cathode material based on a solid solution of the composition Li2CoMn3O8

Cathode materials based on solid solutions of the composition Li2CoMn3O8 were obtained by a combined method and their characteristics were studied. It was found that Li2CoMn3O8 has high electrochemical properties, which makes it a promising cathode material for lithium-ion batteries, an alternative to LiCoO2. Using X-ray phase analysis and spectrometry, the resulting phases were identified and their chemical composition was determined. Electron microscopy and Brunauer–Emmett–Teller methods were used to study the structure and morphology. A technological scheme for the production of Li2CoMn3O8 has been proposed, which ensures the formation of nano-sized samples with a high specific surface area and improved electrochemical characteristics. The electrochemical properties of the synthesized samples were studied.