The paper proposes an algorithm for selecting the optimal mass balance of electrodes of a lithium-ion battery operating in the fast charging mode. The algorithm is based on a numerical model describing the operation of batteries with electrodes produced by using porous materials filled with liquid electrolyte. The calculations employed the data on characteristics of electrode materials, including values of reversible and irreversible capacity determined at low currents. It is shown that this model describes well the behavior of batteries with an NCM622-based cathode and nanocarbon anode even in the mode of fast two-stage high-current charging. Using the model developed, it is possible to determine the ratio of the anode and cathode masses, which is optimal to achieve the maximum specific energy of the battery in any given operating mode, without conducting labor-consuming experiments. Keywords: lithium-ion batteries, fast charging, amorphous nanostructured carbon, numerical modeling.

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Дата начала обработки статистических данных - 27 января 2016 г.