A perylene-based aromatic polyimide with multiple carbonyls enabling high-capacity and stable organic lithium and sodium ion batteries

Abstract

We have synthesized a perylene-based aromatic polyimide (PI) through the polycondensation of perylene dianhydride with a 2,6-DAAQ. The battery cells with the PI cathode exhibited high discharge capacities of 209 mA h g−1 (Li+/Li) and 207 mA h g−1 (Na+/Na) at 200 mA g−1.