ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


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Influence of some components of lead-antimony and lead-calcium alloys on their mechanical and corrosion properties

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.

New additives to active masses and electrolyte of sealed lead storage battery

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.

Treatment optimization of the positive active masses of alkaline batteries

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..

Performance of free-breathing PEM FC in limited-volume conditions

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.

Lithium intercalation into thin-film lithium-tin and lithium-carbon electrodes: an impedance spectroscopy study

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.

Application of the methods of volumetric electric-spark dispersion for the fabrication Ti-Zr-Ni hydrogen storage alloy

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.

Anode non-carbon lithium-accumulating composite materials

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

Utilization of aluminum in low-temperature chemical power sources

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.

Near tasks of the International Technical Committee 044 and standardization problems in the branch

Problems of power source standardization are discussed. Measures to stir up works in the field of technical regulation and standardization of domestic chemical power sources are proposed.

Devices for testing chemical power sources based on various electrochemical systems

The paper presents a series of universal multifunctional computer-aided devices designed and manufactured at Buster-SPb Ltd. for testing of power sources in various modes. As a rule, testing stands have a module structure with the capability to reprogram charge-discharge modes by the user.

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