Mechanically Assisted Li+‐Conduction in Crown Ether‐Covalent Organic Frameworks for Lithium Metal Batteries
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M Gu, J Wu, C Li, Z Zhang, Y Wu, X Cheng…
Advanced …, 2025
Wiley Online Library
Mechanically interlocked molecules (MIMs) enable controlled motions like rotation and shuttling, ideal for molecular machines. Heteroatom‐containing MIMs, such as crown ethers, exhibit host–guest interactions, coordinating Li+ for transport. Crown ethers are integrated into nitrogen‐rich 2D covalent organic frameworks (COFs) to create a high‐performance quasi‐solid‐state electrolyte (Li+@ Crown‐COF) for lithium metal batteries. This electrolyte achieves exceptional ionic conductivity (3.2× 10− 3 S cm− 1) and a Li+ transference number …
