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The relation between porous structure, electronic properties of carbonaceous material and the capacitance of its interface with an electrolyte is discussed. The sizes of the pores in which the processes of capacitive and pseudocapacitive charge accumulation dominate are determined.

Safety level of small commercial Lithium-Ion cells with LiCoO₂ as cathode material during overcharge was investigated. Conditions and possible mechanism of autocatalytic rise of temperature and pressure inside the battery were discussed.

Applications of superionic conductors in solid-oxide fuel cells (SOFC) were considered. A promising direction is the distributed power. Electrochemical current generators come to direct consumers of electric power, who operate the generators as required by their power consumption plan. As a result, the power is reasonably saved and the fuel is used efficiently. SOFC provide highly efficient direct conversion of the chemical energy of the fuel to electricity. Any hydrocarbons can be used as fuel in SOFC.

The discussed in this article problem is concerned with improvement of Lithium-Ion Battery cathodes and anodes characteristics. The contribution of the most important key stages of technological preparation procedure into electrodes properties was discussed. The practical methods and recommendations trained on achievement of preferable electrochemical LIB characteristics were suggested.

Two sets of electrocatalysts for ethanol electrooxidation were synthesized: PtSnX (X=Ni, Co, Mn, V) and RuM (M=Cr, Ti, Mn, V, W). It was shown by transmission electron microscopy and cyclic voltammetry (CV) that particle size of PtSnX metallic phase is equal to 2 – 2.5 nm and its specific surface area is 80-90 m²/g, which is close to structural performance of the commercial catalyst.

The basic questions and some features concerning purification and identification of the solvents, used in lithium power sources are considered. The universal scheme of preparation of the nonaqueous solvents is suggested. The techniques of preparation which guarantee a necessary grade of purity of the solvents for scientific and practical application for a row most frequently using aprotic solvents are described.

Work on decrease in losses of nickel at a stage mechanical operations of extraction of active mass from nickel pocket plate is lead at regenerative processing the alkaline accumulators removed from operation. The degree of extraction of nickel of 98% is achieved due to thermal processing nickel pocket plate as a result of which hydrate nickel (II), contained in a positive electrode material, passes in oxide nickel (II) – easily separated from metal a material.

HThe effect of the main structural parameters of the current collectors on efficiency of operation of the positive electrode of the lead-acid battery was investigated.

The mock-up of nickel-metal hydride storage battery of filter-press type with rated voltage of 6 V and capacity of 1.7 A·h is assembled and tested. The capability of storage battery operation with bipolar nickel-metal hydride electrodes in a single case with common gas collector is demonstrated, and the problems, consideration of which will enable to enter on a battery prototype stage, are defined.

The probability of the thermal runaway in nickel-cadmium accumulators with lamellar electrodes has been studied experimentally. It has been shown that in electrodes of these accumulators that have long terms of service there is a great amount of hydrogen just as in the accumulators with metal-ceramic and striking electrodes. However, the thermal runaway in nickel-cadmium accumulators with lamellar electrodes is less probable than in the accumulators with metal-ceramic and striking electrodes.