Modeling and Experimental Study of Porous Carbon Cathodes in Li-O2 Cells with Non-Aqueous Electrolyte

ECS Electrochemistry Letters. 2014. Vol. 2. No. 4. P. A33–A35.

Nimon V. Y., Visco S., De Jonghe L., Volfkovich Y., Бограчев Д. А.

We performed mathematical modeling and experimental study of porous carbon air cathodes in Li-O2 cells having a non-aqueous electrolyte based on dimethylformamide (DMF). Using the method of standard contact porosimetry, we characterized the porous structure of undischarged, partially discharged, and fully discharged Ketjenblack carbon black-based air cathodes and determined that deposition of solid discharge product occurs within small mesopores with radii of up to 10 nm. We propose a novel mathematical model of air cathode, which takes into account its porous structure and accurately describes the discharge behavior of Li-O2 cells with the DMF-based electrolyte.

Ключевые слова: математическое моделирование, Computer modelling and simulation