Single organic electrode for multi-system dual-ion symmetric batteries.

ABSTRACT: The large void space of organic electrodes endows themselves with the capability to store different counter ions without size concern. In this work, a small-molecule organic bipolar electrode called diquinoxalino[2,3-a:2',3'-c]phenazine-2,6,10-tris(phenoxazine) (DQPZ-3PXZ) is designed. Based on its robust solid structure by the π conjugation of diquinoxalino[2,3-a:2',3'-c]phenazine (DQPZ) and phenoxazine (PXZ), DQPZ-3PXZ can indiscriminately and stably host 5 counter ions with different charge and size (Li⁺, Na⁺, K⁺, PF₆^- and FSI^-). In Li/Na/K-based half cells, DQPZ-3PXZ can deliver the peak discharge capacities of 257/243/253 mAh g^-1_cathode and peak energy densities of 609/530/572 Wh kg^-1

SUBMITTER: Li W 

PROVIDER: S-EPMC11535425 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature