An ultrathin ionomer interphase for high efficiency lithium anode in carbonate based electrolyte.

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ID: 79145
2019
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Abstract
High coulombic efficiency and dendrite suppression in carbonate electrolytes remain challenges to the development of high-energy lithium ion batteries containing lithium metal anodes. Here we demonstrate an ultrathin (≤100 nm) lithium-ion ionomer membrane consisting of lithium-exchanged sulfonated polyether ether ketone embedded with polyhedral oligosilsesquioxane as a coating layer on copper or lithium for achieving efficient and stable lithium plating-stripping cycles in a carbonate-based electrolyte. Operando analyses and theoretical simulation reveal the remarkable ability of the ionomer coating to enable electric field homogenization over a considerably large lithium-plating surface. The membrane coating, serving as an artificial solid-electrolyte interphase filter in minimizing parasitic reactions at the electrolyte-electrode interface, enables dendrite-free lithium plating on copper with outstanding coulombic efficiencies at room and elevated (50 °C) temperatures. The membrane coated copper demonstrates itself as a promising current collector for manufacturing high-quality pre-plated lithium thin-film anode.
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weng2019annature Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Weng, Yu-Ting;Liu, Hao-Wen;Pei, Allen;Shi, FeiFei;Wang, Hansen;Lin, Chih-Yuan;Huang, Sheng-Siang;Su, Lin-Ya;Hsu, Jyh-Ping;Fang, Chia-Chen;Cui, Yi;Wu, Nae-Lih;
Journal Nature communications
Year 2019
DOI
10.1038/s41467-019-13783-1
URL
Keywords
green manufacturing manufacturing process chinese patent medicine new technology pharmaceutical equipment

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