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Thermodynamic properties (S⁰₂₉₈, H⁰₂₉₈-H⁰₀, ?H⁰₂₉₈, c_p(T)) for cobalt oxides Co₂O₃, CoO₂ and LiCoO₂ have been found using calculating methods. Obtained values can be applied to calculation of physicochemical properties of the systems where indicated compounds are components.

A technology for hydrometallurgical processing of lamellar nickel-oxide electrodes is proposed to increase the nickel usage efficiency at production of alkaline batteries with simultaneous reduction of environmental pollutions.

The possibility to design hermetically-sealed nickel-cadmium high-capacity batteries with a pressure inside not higher than 0.2 atmex for carriages is shown.

Possible cases of iron pollution of the active masses of lamellar-type nickel-oxide electrodes in nickel-iron and nickel-cadmium-iron batteries are analyzed on the basis of our own studies as well as literature data.

On the basis of cells Escherichia coli the microbial mediator anode is developed for process of oxidation of glucose and conditions of its work in a model of a microbial fuel cell in which as the cathode it is used dioxideleaden electrode are optimized.

High temperature method was used to synthesize PtCo/C catalysts on the basis of various precursors. It was shown using the RDE method that a catalytic system with low Pt content (5.0 wt.% Pt + 1.5 wt.% Со) synthesized on the basis of H₂PtCl₆ and Co phthalocyanine on carbon black ХС72 demonstrates the highest electrocatalytic activity due to the formation of highly dispersed Pt₃Co alloy particles. This was confirmed by XPS studies.

The change in phase composition, dispersibility and morphology of ?-, ?- and ?-lithium aluminates, which are the components of molten carbonate fuel cell were investigated after long exposure in Li/KCO₃ (62/38 vol.%) eutectic melt under H₂, H₂ + CO₂ (20-mol.%) and 0.33 O₂ + 0.67 CO₂ atmospheres at 650°C. ?- , ?- , ?- aluminates and their mixtures were found to transform into ?-phase under oxidative atmosphere. Under reducing atmosphere both ?- and ?-phases always coexist.

By the methods of isothermal solubility, 19F NMR spectroscopy and also by implementation of ab initio quantum – chemical calculations the kinetics is explored and thermodynamics of reactions of double exchange in the systems K(Na)RF6 – LiBF4 – propylene carbonate – dimethyl carbonate. A method is offered of receipt of electrolytes on the basis of LiРF6 and mixtures of carbonate ethers. An electrolyte successfully is tested in elements with the hard cathodes.

Thermostable proton exchange membranes for fuel cells are overviewed. Three groups of the membrane are described: modified membranes based on perfluorosulfonic acid, alternative sulfated polymers and corresponding composite membranes, acid-alkali polymer membranes.

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.