Understanding a Single-Li-Ion COF Conductor for Being Dendrite Free in a Li-Organic Battery.

ABSTRACT: In addition to improving ion conductivity and the transference number, single-Li-ion conductors (SLCs) also enable the elimination of interfacial side reactions and concentration difference polarization. Therefore, the SLCs can achieve high performance in solid-state batteries with Li metal as anode and organic molecule as cathode. Covalent organic frameworks (COFs) are leading candidates for constructing SLCs because of the excellent 1D channels and accurate chemical-modification skeleton. Herein, various contents of lithium-sulfonated covalently anchored COFs (denoted as LiO₃S-COF1 and LiO₃S-COF2) are controllably synthesized as SLCs. Due to the directional ion channels, high Li contents, and single-ion frameworks, LiO₃S-COF2 shows exceptional Li-ion cond

SUBMITTER: Sun Y 

PROVIDER: S-EPMC9575471 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature