synthesis

The phase composition, conductivity and corrosion resistance under the Molten Carbonate Fuel Cell (MCFC) operating conditions of synthesized using common ceramic and cocrystallization techniques samples of LaLi_0.1Со_0.1Fe_0.8O_{3 – δ} have been studied. It was found, that the phase composition of synthesized by ceramic technique sample differed from the nominal composition.

At present LiCoO₂ is commercially available material for positive electrodes of lithium-ion batteries. For further improvement of its properties a number of doped samples of lithium cobaltite were synthesized. Mg and Ti were used as dopants. Crystal structure of LiCo_{1 – x – y}Mg_xTi_yO₂ was studied with XRD, whereas chemical composition was determined with atomic absorption spectroscopy, complexometric titration as well as inductively-bonded plasma. The average initial discharge capacity amounted to 145 to 150 mA·h/g.