Park, Junghoon Ju, Je-Beck Choi, Wonchang Kim, Sang-Ok 2024-01-19T21:03:36Z 2024-01-19T21:03:36Z 2021-09-02 2019-01 0925-8388 https://pubs.kist.re.kr/handle/201004/120546 Rational design and synthesis of advanced electrode materials are considered essential for realizing high-performance lithium-ion batteries for the fast-growing electric vehicle and energy storage applications. Herein, a novel and robust core-shell structured ZnO-based composite (denoted as ZnO@C) is prepared via the controlled growth of zeolitic imidazolate frameworks (ZIF-8) on the surface of ZnO nanoparticles followed by thermal treatment under nitrogen atmosphere, and is utilized as a lithium-ion battery anode. The microstructural characterization of the ZnO@C composite reveals that ZnO particles are well-embedded within a highly conductive nitrogen-doped carbon nanolayer. The obtained ZnO@C composite exhibits a high specific capacity of 798 mA h g(-1) with an initial charge/discharge efficiency of 81%, good long-term cyclability of over 300 cycles at a high current density of 1 A g(-1), and enhanced rate capability up to 2 A g(-1) with a LiF-rich solid electrolyte interphase (SEI) formed in the presence of the fluoroethylene carbonate additive. These results suggest that the combination of the multifunctional ZIF-8-derived carbon coating and the use of electrolyte additive as a SEI modifier significantly improves the lithium storage performance of high-capacity metal oxide anodes. (C) 2018 Elsevier B.V. All rights reserved. English Elsevier BV Highly reversible ZnO@ZIF-8-derived nitrogen-doped carbon in the presence of fluoroethylene carbonate for high-performance lithium-ion battery anode Article 10.1016/j.jallcom.2018.09.298 1 Journal of Alloys and Compounds, v.773, pp.960 - 969 Journal of Alloys and Compounds 773 960 969 N scie scopus 000449741200108 2-s2.0-85054173911 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article ZEOLITIC IMIDAZOLATE FRAMEWORK CHEMICAL-VAPOR-DEPOSITION LI-ION ZINC-OXIDE NANOPOROUS CARBON ELECTROCHEMICAL PERFORMANCE RECHARGEABLE BATTERY DIRECT CARBONIZATION FACILE SYNTHESIS COMPOSITE ANODE Zinc oxides ZIF-8 derived carbon layers Fluoroethylene carbonates High-performance anodes Lithium-ion batteries