Regulating Li<sup>+</sup> Transport and Interfacial Stability with Zwitterionic COF Protective Layer Towards High-Performance Lithium Metal Batteries.
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ABSTRACT: The sluggish Li+ migration kinetics and unstable electrode/electrolyte interface severely hinder the commercial application of high-performance lithium metal batteries (LMBs). Herein, an artificial protective layer is constructed using zwitterionic covalent organic framework (Z-COF) simultaneously containing sulfonate and ethidium groups, aiming to facilitate rapid, uniform Li+ transport and stabilize anode interface. The sulfonate groups with high lithiophilicity provide abundant hopping sites for fast Li+ diffusion. The ethidium cations immobilize TFSI- and solvent molecules by ion-dipole interactions, which accelerate the dissociation of LiTFSI and Li+ desolvation. Moreover, the monodispersed zwitterionic units coupling with ordered
SUBMITTER: Rong L
PROVIDER: S-EPMC12765773 | biostudies-literature | 2026 Jan
REPOSITORIES: biostudies-literature
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