Synthesis and investigation of electrolytic sodium-vanadium oxide compounds for cathodes of lithium batteries: The production of compounds with stable initial characteristics

Heterogeneous vanadium oxide compounds are produced by electrolyzing a vana dyl sulfate solution containing sodium ions. Limiting technological paramet ers ensuring the synthesis of electrolytic products with stable initial ele ctrochemical characteristics are found. As sodium ions enhance adhesion of electrolytic deposits to the substrate, these can be used in the thin-layer cathodes of lithium batteries without inert additives, along with the comp osite electrodes containing such additives. The deposits' electrochemical p roperties depend on the content of sodium ions in the electrolyte and the s ubsequent thermal treatment. Specific discharge capacity of such deposits m ay reach 320 A h kg(-1) when discharged to 2.0 V at 100 mu A cm(-2).