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Herein are considered some ways to improve the performance efficiency of sealed batteries of high capacity by providing uniform electrolyte distribution with battery height, increasing active mass utilization coefficient and limiting PCL effect.

The method of a rotating disk electrode leads studying the basic laws of electrochemical behaviour of mediator as basic electroactive component of bioelectrochemical system and influence of speed of rotation of an electrode, concentration of mediator, glucose and microbial cells are certain for the general speed of process bioelectrocatalitic oxidation of glucose.

The influence of the concentration of antimony, tin, cadmium, calcium, silver, and barium on some characteristics of lead-antimony and lead-calcium alloys was studied. The cadmium-doped and barium-doped alloys show the best corrosion resistance among the lead-antimony and lead-calcium alloys, respectively.

Effect of high-collated carbon clusters (soots containing fullerenes and nanopipes) on electrode pastes structure have been studied and their positive effect on characteristics of the obtained active masses has been shown. Effect of partial hydrophobization of negative active mass (NAM) on efficiency of the closed oxygen cycle has been studied. Effect of different additives (С₇H₆O₂, C₈H₈O₂, (-CF₃-CF₂₅-)QZ) on ?_H2 have been studied.

The concept of processing of the positive electrode material taken from fulfilled alkaline accumulators, based on primary separation of an iron component from nickel at stages of hydrometallurgical repartition, is presented..

This paper represents performance of air-hydrogen free-breathing Fuel Cell (FC) in limited volume conditions. Research work was carried out with thin two-cell stacks related to use in prototype of particular power source system, which includes aluminium-water microgenerator of hydrogen. In small current densities field (<200 mA/cm²) it was established, that after FC had been confined within the small volume, characteristics of FC became better than in non-limited-volume conditions due to self humidification.

Reversible lithium intercalation from a non-aqueous electrolyte into thin films of tin (0.1–1 mcm) and carbon (-3 mcm) was studied by means of electrode impedance spectroscopy. The measurements were made within a frequency range of 10⁵–10^-2 Hz at a varying lithium concentration in the matrix. The paper discusses several versions of electrical equivalent circuits to simulate the experimental impedance spectra, and the concentration dependence of the lithium diffusion coefficient.

Results of X-ray and electrochemical analyses of properties of the Ti-Zr-Ni powders obtained by the volumetric electric-spark dispersion method in water, alcohol, kerosene, liquid nitrogen and liquid argon are represented. An influence of the working liquids and parameters of discharge pulses on the chemical composition, phase-structural state, electrochemical characteristics and electrical capacity of the obtained powders are considered.

It is a review of foreign periodical literature on perspective anode materials for lithium-ion and lithium-polymer batteries. The submitted data concern mainly to the period 1998-2003 The published data on lithium-accumulating composites alternative to traditional carbon systems are analyzed. Merits and demerits of electrodes made of tin oxides, tin, antimony, copper and iron intermetallides. as well as boron-, nitrogen- and silicon – containing anode materials are discussed

The state-of art of primary and secondary batteries with aluminum negative electrode, including aluminum-oxygen (air) batteries as well as batteries with positive electrodes based on various other oxidizers is considered.