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Effect of graphite addition to negative material and of new material of negative grids of VRLA batteries have been studied for partial-state-of-charge applications.

The work procedure on thermal balance evaluation in lead-acid battery.

A way of preliminary chemical activation of the MH electrode has been developed. A breadboard model of the battery with chemically activated MH electrodes was assembled and tested. The influence of preliminary chemical activation on the electrochemical and structural characteristics of the MH electrode was studied. The opportunity to exclude the technological operation of addition of metal binding materials into the active mass of the MH electrode is shown.

Theoretical description of effect of gaseous phase 3D-nucleation in kinetics of cathodic hydrogen evolution reaction was made. Algorithm of separation of nucleation stream from general current of potentiostatic measurements was obtained. The system of critical coordinates for different nucleation models was created, their invariance to the nature of moving H or H₂ particle on the electrode surface was shown.

Opportunities of creation of an accessible and rather inexpensive measuring complex for registration and researches of noise characteristics of various electrochemical objects, in particular chemical power sources, are considered. The device of the developed complex, its feature and key parameters are described. Comparison of operational characteristics of the device and the import equipment used for noise researches is brought.

The effects of tin additions in the range 0.5–3.0 wt.% on mechanical and electrochemical properties of Pb-Sb alloy are investigatead.

The effects of selenium additions in the range 0.02–0.05 wt.% on mechanical and electrochemical properties of Pb-Sb alloy are investigatead.

Low-temperature test was held to determine the discharge characteristics of battery cells with the purpose to specify the requirements to electrode materials and electrolyte used in cylindrical nickel metal hydride battery cells of AA standard size that fit for work at negative temperatures.

Two materials based on V₂O₅ and PANI were compared in their behaviour in positive electrodes of lithium (lithium-ion) rechargeable batteries. Composite material consisted from mixture of nanostructured individual components whereas PANI was intercalated into interlayer space of V₂O₅ in the hybrid material. Both materials are shown to be able to reversibly insert lithium ions, initial capacity being almost the same (220–250 mA·h/g). Cycling stability of hybrid material was notable better than that of composite one.

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