Structure-mediated electrochemical performance of SnS2 anode for Li-ion batteries

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/101984

Title:	Structure-mediated electrochemical performance of SnS2 anode for Li-ion batteries
Authors:	李岱洲;Wu, Karen;Wu, Chia-Jung;Tseng, Chuan-Ming;Chang, Jeng-Kuei;Lee, Tai-Chou
Contributors:	工學院化學工程與材料工程學系
Keywords:	3-D hierarchical structure;Anode;Synthesis of SnS2
Date:	2016-09-01
Issue Date:	2026-04-21 14:54:49 (UTC+8)
Publisher:	Taiwan Institute of Chemical Engineers;Elsevier B.V
Abstract:	摘要： •Flower-like microspheres were prepared using solvothermal method.•The hierarchical structure can alleviate the volume change during cycles.•A retention of 84% after 100 cycles was obtained at 300mA g−1.•A reversible capacity of 285mA h −1 was obtained at 5000mA g−1. In this study, SnS2 powders with various surface morphologies are prepared using a facile solvothermal route with three different solvents. The powders synthesized in ethylene glycol and deionized water exhibit aggregates composed of nanoplates, whereas those synthesized in ethanol show flower-like microspheres (diameter: 1–2µm) composed of nanosheets (thickness: 60–70nm). The hierarchical flower-like microstructures can alleviate the volume change during charge/discharge cycles due to their porous nature. In addition, SnS2 synthesized at a lower temperature (100°C) has nanoplates with a lower thickness, improving electrochemical performance. At a constant current density of 300mA g−1, the microflowers exhibit a reversible capacity of 460mAh g−1 after 100 cycles, a retention of 84%. More importantly, at a higher current density of 5000mA g−1, a reversible capacity of 285 mAh g−1 is obtained. This study demonstrates that SnS2 synthesized using suitable processing design strategies can be used as an efficient active material for lithium-ion batteries. [Display omitted] 出版者： Elsevier B.V 出版日期： 2016-09 出處： Journal of the Taiwan Institute of Chemical Engineers, 2016-09, Vol.66, p.292-300 資源來源： ScienceDirect (Elsevier) Journals 版權： 2016 Taiwan Institute of Chemical Engineers 識別號： ISSN: 1876-1070 識別號： EISSN: 1876-1089 識別號： DOI: 10.1016/j.jtice.2016.07.003
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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