An orderly arranged dual-role MIL-53(Al)nanorods array rooted on carbon nanotube film for long-life and stable lithium-sulfur batteries
作者机构：Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy SavingTianjin Key Laboratory of Chemical Process SafetySchool of Chemical Engineering and TechnologyHebei University of TechnologyTianjin 300130China Department of Chemical and Biological EngineeringUniversity of OttawaOttawaON K1N 6N5Canada
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第2期
页 面：2409-2420页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：support from Outstanding Young Talents Project of Hebei High Education Institutions(BJ2021020) the Natural Science Foundation of Hebei Province(B2019202289)
主 题：lithium-sulfur batteries nanorods array MIL-53(AL) interlayer anode host material
摘 要：It is of great value to synchronously resolve the critical issues of the polysulfide shuttle and dendrite growth in lithium-sulfur(Li-S)***,a bifunctional Al-based Material of Institute Lavoisier-53(MIL-53(Al))/carbon nanotube(MIL-53/CNT)composite is reported for this matter,which was constructed by growing an ordered MIL-53(Al)nanorods array on the CNT *** the sulfur cathode,the proposed structure serves as a multifunctional interlayer to block polysulfides and accelerate their catalytic conversion,thus efficaciously inhibiting the shuttle ***,when applied as the anode host material(Li@MIL-53/CNT),the flexible CNT film serves as a self-standing framework to accommodate Li metal and alleviate the volume expansion,while the uniform ion channels built by the MIL-53(Al)nanorods array along with the abundant oxygen groups can homogenize Li ion diffusion,enabling a steady Li plating/stripping behavior and limiting the dendrite *** surprisingly,Li-S full battery with MIL-53/CNT interlayer and Li@MIL-53/CNT anode delivers an appreciable specific capacity of 735 mAh·g^(–1)and excellent cycle durability at 5 C,presenting a limited capacity decay of 0.03%per cycle in 500 ***,an impressive cycle stability and rate capability are also achieved at high-sulfur loading and lean electrolyte conditions.
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