discharge characteristics

The article presents a universal combined model of the electrochemical battery, built on the basis of the modified Shepherd equation and the kinetic model. The proposed model provides the adequate mapping of the basic characteristics of the battery in operating mode, taking into account the physical constraints of the capacity available. The results of verification of the developed mathematical model using lead-acid and lithium-iron-phosphate batteries are presented.

Our test results of nickel-cadmium FKM mock-up batteries with metal-felt nickel-oxide electrodes are presented. The discharge characteristics of the tested mock-up batteries with nickel-oxide electrodes made on the carbon-graphite felt basis are shown to exceed virtually all relevant requirements of Russian Railway Industry Standards. The high cyclability of these batteries was established: reduction of the discharge capacity lower than the nominal value was observed after 3100 cycles.