Building Organic/Inorganic Hybrid Interphases for Fast Interfacial Transport in Rechargeable Metal Batteries.
Qing ZhaoZhengyuan TuShuya WeiKaihang ZhangSnehashis ChoudhuryXiaotun LiuLynden A ArcherPublished in: Angewandte Chemie (International ed. in English) (2017)
We report a facile in situ synthesis that utilizes readily accessible SiCl4 cross-linking chemistry to create durable hybrid solid-electrolyte interphases (SEIs) on metal anodes. Such hybrid SEIs composed of Si-interlinked OOCOR molecules that host LiCl salt exhibit fast charge-transfer kinetics and as much as five-times higher exchange current densities, in comparison to their spontaneously formed analogues. Electrochemical analysis and direct optical visualization of Li and Na deposition in symmetric Li/Li and Na/Na cells show that the hybrid SEI provides excellent morphological control at high current densities (3-5 mA cm-2 ) for Li and even for notoriously unstable Na metal anodes. The fast interfacial transport attributes of the SEI are also found to be beneficial for Li-S cells and stable electrochemical cycling was achieved in galvanostatic studies at rates as high as 2 C. Our work therefore provides a promising approach towards rational design of multifunctional, elastic SEIs that overcome the most serious limitations of spontaneously formed interphases on high-capacity metal anodes.
Keyphrases
- ion batteries
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- gold nanoparticles
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- molecular dynamics simulations
- molecularly imprinted
- signaling pathway
- oxidative stress
- endoplasmic reticulum stress
- cell death
- electron transfer
- mass spectrometry
- water soluble
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- high intensity
- quantum dots
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- room temperature
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- simultaneous determination
- liquid chromatography