context: Imide-functionalized small molecules are represented by 3,4,9,10-perylene-tetracarboxylic diimide (PTCDI 10), recently proposed by Fan et al. It has lower solubility compared to PTCDA, which should have improved its cycling stability. Nevertheless, with 1 M and 3 M KFSI solutions in EC:DMC, rapid capacity fading associated with the material dissolution was observed. The cathode dissolution was suppressed by using 5 M KFSI in EC:DMC, which ensured ∼0% capacity decay over 100 cycles at 100 mA g−1 and ∼90% retention after 600 cycles at 4 A g−1. The reported Qm at 100 mA g−1 was 157 mA h g−1, which is higher than the theoretical value of 137 mA h g−1; the additional capacity (∼27 mA h g−1) originated from the carbon additive. Impressive capacities of 137 and 80 mA h g−1 were observed at 1 and 10 A g−1, respectively. The rate performance of PTCDI was reported to be superior compared to PTCDA under the same conditions. PTCDI-based full cells, which had pre-potassiated graphite as the anode, delivered a Qm of 140 and 80 mA h g−1 at 50 and 500 mA g−1, respectively. The output voltage was 2 V and ∼50% of the capacity retained after 500 cycles at 500 mA g−1.