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Статья

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. J., De Jonghe L. C., Volfkovich Y. M., Bograchev D.

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.