Grid-scale energy storage is emerging as one of the largest potential applications for electrochemical devices and will require abundant, low cost, ultra-stable electrodes. Organic materials possess many advantages such as low toxicity, sustainability, high redox stability, and chemical/structural tunability toward high energy density. However, to compete with inorganic-based compounds, crucial aspects such as redox potential, capacity, cycling stability, and electronic conductivity need to be improved. Herein, we report a comprehensive strategy on the molecular design of small organic electron-acceptor-molecule — hexaazatrianthranylene (HATA) embedded quinone (HATAQ). By introducing conjugated quinone moieties into the electron-deficient hexaazatriphenylene-derivative core, HATAQ with highly extended π-conjugation can yield extra-high capacity for ion storage (Li⁺, Na⁺, Zn²⁺) with superior rate capability. These experimental results together with density functional theory (DFT) studies provide proof-of-concept that our design strategy is promising for the development of organic compounds as alternative electrode materials for next-generation energy storage systems with exceptionally high energy density, rate capability, and cycling stability.