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

Топливные элементы

Oxygen biocathode based on laccase Pleurotus ostreatus HK-35 for biofuel cell

The main reasons that make mankind look for new sources of energy are decreasing dependence on fossil fuels and reducing pollution. Wastewater treatment with the help of microbial fuel cells is an area where these two goals can be combined. Microbial fuel cells, in which microorganisms catalyze the oxidation of organic substances, represent a new and promising alternative for electricity generation. The creation of an efficient cathode in such systems is the important problem. It is evident that in these applications an oxygen (air) electrode is a promising cathode.

New lead-acid battery for submersible vehicles

In this paper a new design of a container is detailed for sealed lead-acid battery operating overboard of a submersible vehicle in conditions of increased ambient pressure. Such a container is both a battery jar and a pressure compensator. It has been shown that a mandatory requirement for such container use is an application of a gelled-electrolyte. Authors have offered a two-stage technology of filling of accumulators without using vacuum pumping.

The surface treatment methods of titanic bipolar plates of air-hydrogen fuel cells

The Work is devoted to the research of influence of superficial processings of bipolar plates (BP) on specific electric characteristics of fuel ce)(s (FC). Researches were conducted on plates on the basis of the titan. Two methods of processing BP are considered: electrochemical gilding and ionic implantation of carbon. In work short descriptions of the resulted technologies, and also a technique and results of experiments are presented. In work it is shown that as gilding, and ionic implantation carbon titanic BP electric characteristics FC improve.

Influence of the active-mass granulometric spectrum on the electrochemical characteristics of the metal-hydride electrode

A comparative study was made of the electrochemical characteristics of metal hydride (MH) electrodes based on powder compositions of various granulometric characteristics. The electrochemical discharge capacity of the MH electrode has been found to be strongly dependent of the linear grain size of the hydrogen-sorbing alloy and carbonylic nickel. An increase in the dispersity degree of the hydrogen-sorbing alloy powder leads to reduction of the discharge characteristics of the MH electrode. A reverse dependence is observed for carbonylic nickel.

Electrochemical method for air purification from СО2

The method for air purification from carbon dioxide gas in operating electrochemical cell at oxygen pump mode is considered. The work suggests a mechanism of CO2 removal. The effect of a number of parameters to CO2 removal is discussed. A scheme of module application for air purification from CO2 completed with Alkaline Fuel Cell Stack (AFCS) is proposed. Provided is a method for alkaline electrolyte decarbonization.

Properties of the some individual aprotic solvents used in lithium power sources. II. Volumetric properties of the solvents

The information on volumetric properties for a following most often of used aprotic solvents acetonitrile, γ-butirolactone, 2,5-dimethyltetrahydrofurane, 1,2-dimetoxyethane, methyl acetate, 2-methyltetrahydrofurane, nitromethane, propylene carbonate, sulfolane, tetrahydrofurane and thionylchloride are considered. The temperature dependencies of density, specific and molar volumes, structural radiuses of molecules of solvents and coefficients of packaging of molecules of solvents are described.

Reversible electrochemical systems with a solid polymeric electrolyte

State-of-the-art development of the reversible electrochemical systems with proton-exchange membrane for cyclic direct and reverse transformation of electric energy to the chemical ones is considered in this review. Concept of reversible cells and areas of theirs application are described. Possible schemes of organization of the reversible systems operation, and catalytic, electrode and membrane materials used in them are analyzed.

Fuel cells on boron-hydride fuel

The article contains the review of scientific-technical publications concerning a use of borohydrides in fuel cells and chemical generator over a period of 2000–2009. Their scientific basis principles of operation, prospects of utilization, and possible technologies are examined.

A technology for hydrometallurgical processing of lamellar nickel-oxide electrodes

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.