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


Щелочные аккумуляторы

The research of nickel-cadmium accumulators forming process on their physical models

Approach to the choice of charge termination criterion of nickel-cadmium accumulators forming cycles is described. The results of accumulators' physical models forming, using chosen criterion are represented. The research shows the effectiveness of prolonged – before voltage regulation – charges during nickel-cadmium accumulators capacity forming due to the considerable decrease in the number of charge-discharge forming cycles and improvement of their discharge characteristics.

Tests of the sealed nickel-cadmium storage batteries for capacity safety during long-term storage after charging with direct and asymmetric currents

Comparative results of the tests of the sealed nickel-cadmium batteries for capacity safety during long-term storage after charging with direct and asymmetric currents are represented. Charging with asymmetric current was carried out in an accelerated manner at average value of the charging current equal to 0.8Crated. Charging with direct current was carried out at average value of the charging current equal to 0. lCrated in accordance with Technical Conditions.

Automated rapid charge of the sealed nickel-cadmium storage batteries with asymmetric current, and its influence on the resource

The research results of the sealed nickel-cadmium storage batteries reliability at the rapid charge with asymmetric current are represented. In accordance with the reliability theory postulates, the experimental data of the resource test in the mode of the storage batteries 10NKGZ-1,8-1, 10NKGZ-3,5-l, 10NKGZ-4 cycling.

The experimental study of the process of electrochemical syntheses of nickel hydroxide

Work of running double-chamber electrochemical reactor is investigational for an electrosynthesis Ni(OH)2. It is shown that the basic parameter of the mode is a relative current is attitude of current of I toward the theoretical equivalent current of I*, at that fully initial reagents are expended in a reactor. Mode of I/I* = 1 differentiates two areas (I < I* and I > I*) with salutatory and like changing physical and chemical and electrochemical properties Ni(OH)2.

YaDevelopment of new electrocatalysts for low temperature electrolysis of water

Optimized methods of synthesis and modification of high efficient electrocatalysts for alkaline electrolysers have been described. The results of new electrocatalyst characterization by means of some physico-chemical methods are presented.

Influence of Asymmetric Current Parameters on Nickel-Cadmium Accumulators Formation Process Time

Comparison of asymmetric current parameters influence on nickel-cadmium accumulators forming time is performed. According to the results of capacity forming of NKM-22 accumulators with thin pressed cadmium and metal-ceramic electrodes, the perspective of application of asymmetric current with parameters chosen during experiments and used in this paper is established. Waveforms giving the biggest increase of capacity comply with the most economical parameters defined om models during experiments.

Investigation of the Causes of Thermal Run-away in Sealed Nickel-Cadmium Batteries

It is shown from analysis of charging current and voltage change on the terminals of sealed Ni-Cd battery at thermal runaway, that thermal runaway is accompanied by a new high-power electrochemical reaction, going at battery voltage of approximately 0.55 V.

Generalized model of capacitance from discharge current dependence in nickel-cadmium batteries

For nickel-cadmium batteries of stationary application, a global empiric correlation C(i) describing the dependency of released capacitance by the batteries at different discharge currents was suggested, which is true for batteries of any capacitance and any mode of discharge (H, M, L). The global correlation C(i) can be described by generalized Peukert's equation, Korovin-Skundin's equation, probability integral, and porous electrode equation with accuracy sufficient for practical application.

Research of nickel cadmium storage batteries 42NK-125 capacity regeneration.

The comparative results of nickel cadmium storage batteries capacity regeneration with asymmetrical and direct currents after their exploitation on the electric locomotives in the conditions of constant floating with current impulses are represented. The capacity regeneration with asymmetrical current was carried out rapidly, the battery was restored with charging capacity numerically equal to 1.2Cnom.

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