Covalent Organic Frameworks Construct Precise Lithiophilic Sites for Uniform Lithium Deposition

Yun Wei Song, Peng Shi, Bo Quan Li, Xiang Chen, Chang Xin Zhao, Wei Jing Chen, Xue Qiang Zhang, Xiao Chen, Qiang Zhang*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

84 引用 (Scopus)

摘要

Lithium (Li) metal represents a promising anode material for constructing high-energy-density rechargeable batteries but is severely limited by uncontrolled Li dendrite growth. Introducing a Li host effectively relieves Li dendrite growth, while precise construction of the lithiophilic sites is essential but insufficient among the current strategies. In this contribution, a covalent organic framework is employed as a Li host to precisely construct the lithiophilic sites with well-defined chemical structure and uniform geometric distribution at the atomic level. The precisely constructed structure delivers maximum efficiency and exposure of the lithiophilic sites. Consequently, the G@COF-1 host reduces Li nucleation overpotentials and favors prolonged lifespan with uniform deposition morphologies, and the G@COF-1-Li composite anode realizes stable cycling in LFP and NCM full cells.

源语言英语
页(从-至)253-264
页数12
期刊Matter
4
1
DOI
出版状态已出版 - 6 1月 2021
已对外发布

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Song, Y. W., Shi, P., Li, B. Q., Chen, X., Zhao, C. X., Chen, W. J., Zhang, X. Q., Chen, X., & Zhang, Q. (2021). Covalent Organic Frameworks Construct Precise Lithiophilic Sites for Uniform Lithium Deposition. Matter, 4(1), 253-264. https://doi.org/10.1016/j.matt.2020.10.014