Dendrite?Free and Stable Lithium Metal Battery Achieved by a Model of Stepwise Lithium Deposition an

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The uncontrolled formation of lithium(Li)dendrites and the unnecessary consumption of electrolyte during the Li plating/stripping process have been major obstacles in developing safe and stable Li metal batteries.Herein,we report a cucumber-like lithiophi
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Covalent organic frameworks(COFs)as a type of porous and crystalline covalent organic polymer are built up from covalently linked and periodically arranged organic molecules.Their precise assembly,welldefined coordination network,and tunable porosity endo