An Interfacial Layer based on Polymer of Intrinsic Microporosity to Suppress Dendrite Growth on Li‐Metal Anodes

Liya Qi, Luoran Shang, Kai Wu, Liangliang Qu, Hao Pei, Wen Li, Lexiang Zhang, Zhengwei Wu, Henghui Zhou, Neil B. Mckeown, Weixia Zhang, Zhengjin Yang

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The performance and safety of lithium (Li) metal batteries can be compromised due to the formation of Li dendrites. Here we report the use of a polymer of intrinsic microporosity (PIM) as a feasible and robust interfacial layer that inhibits dendrite growth. The PIM demonstrates excellent film-forming ability, electrochemical stability, strong adhesion to a copper metal electrode and outstanding mechanical flexibility so that it relieves the stress of structural changes produced by reversible lithiation. Importantly, the porous structure of the PIM, which guides Li flux to obtain uniform deposition, and its strong mechanical strength combine to suppress dendrite growth. Hence, the electrochemical performance of the anode is significantly enhanced, promising excellent performance and extended cycle lifetime of Li-metal batteries.
Original languageEnglish
JournalChemistry - A European Journal
Early online date3 Jul 2019
DOIs
Publication statusE-pub ahead of print - 3 Jul 2019

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