Metal‐Free Electron Donor‐Acceptor Pair Enabled Long‐Term Stability of Li‐CO2 Battery

• DOI: 10.1002/smll.202400619
• Publication Date: 2024-04-09T18:59:38Z
• Authors: Zhihao Liu; Xingwu Zhai; Tianchen Wei; Yuchun Liu; Zhixin Sun; Jing Zhang; Honghe Ding; Yujian Xia; Min Zhou
• Keywords: Acceptor; Electron acceptor; Electron donor

Abstract The challenges of Lithium‐carbon dioxide (Li‐CO 2 ) batteries for ensuring long‐term cycling stability arise from the thermodynamically stable and electrically insulating discharge products (e.g., Li CO 3 ), which primarily rely on their interaction with active materials. To achieve optimized intermediates, bifunctional electron donor–acceptor (D–A) pairs are proposed in cathode design to adjust such interactions case B–O pairs. inclusion BC O sites allows redistribution electrons via p – π conjugation. as‐obtained D –A B endow enhanced + , various accompanied by adjustable growth mode . shift solvation‐mediated into surface absorption turn manipulates morphology decomposition kinetics Therefore, corresponding Li‐CO battery got twofold improved both capacity reversibility. prolongs exceed 1300 h well operates at a wide temperature range (20–50 °C) different folding angles (0–180°). Such strategy introducing provides distinct direction optimize lifetime local structure regulation atomic scale, further inspiring in‐depth understandings developing electrochemical energy storage carbon capture technologies.