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One of the key steps to improve environmental situation is reducing pollutants released by automobiles. As of now, electric cars are the most commonly used type of eco-friendly vehicles. However, having a limited travel range they require an infrastructure system of charging stations to operate. Moreover, while electric vehicles don’t produce negative emissions directly they can still contribute to pollution if their energy is generated using fossil fuels. To further improve environmental benefits of electric cars charging stations on renewable energy sources should be developed.

To increase the specific characteristics of the surface electrodes, used in the lead accumulators it is necessary to exclude the influence of the internal stress in the paste which is obtained by the electrochemical way. One of the variants of the solutions of this problem is the electrochemical obtaining the paste under the pressure directed to the surface of the forming paste.

Specific capacity of secondary batteries with thin-film electrodes have been estimated. Notable gain in specific capacity is shown to be possible only at substitution of the both electrodes with higher capacity for traditional ones.

Present article describes the method of operative diagnostics of available capacity of the lead-acid accumulator (battery) at 10 or 20-h discharge mode. This method is developed on the basis of mathematical model of process of the discharge of the lead-acid accumulator. This allows calculating the available capacity of the accumulator (battery) on the basis of measurement of function of a response to the set short-term test signal without necessity of carrying out the control discharge of the battery. Calculation of available capacity is carried out on the basis of the parameter which is responsible for discharge capacity of the accumulator (battery), a total electric charge of an active surface of a limiting electrode.

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. This correlation is most easily described by the generalized Peukert's equation C=Cm/(1+(i/IC/2)3.6).