https://scholars.lib.ntu.edu.tw/handle/123456789/409024
標題: | Engineering Rice Husk into a High-Performance Electrode Material through an Ecofriendly Process and Assessing Its Application for Lithium-Ion Sulfur Batteries | 作者: | Huang S.-S. Tung M.T. Huynh C.D. Hwang B.-J. Bieker P.M. Fang C.-C. Wu N.-L. |
關鍵字: | Li ion sulfur batteries;Li-ion batteries;recycle;Rice husk;silicon anode | 公開日期: | 2019 | 卷: | 7 | 期: | 8 | 起(迄)頁: | 7851-7861 | 來源出版物: | ACS Sustainable Chemistry and Engineering | 摘要: | High-capacity and cycle-stable SiO x /C composite anodes for Li-ion batteries (LIBs) were synthesized from rice husk (RH) using an ecofriendly, one-step pyrolysis process that takes full advantage of both the silica and organic components of RH. The process-property-performance relationship for this process was investigated. Pyrolysis of RH at a sufficiently high temperature (1000 ¢XC) results in a C scaffold with a low surface area, high electronic conductivity, and embedded SiO x nanoparticles that are highly active toward lithiation, enabling high rate capability along with outstanding cycle stability for LIB applications. A SiO x /C anode delivering a specific capacity of 654 mAh g -1 and retaining 88% capacity (99.8% CE) after 1000 cycles was demonstrated. Higher capacities, up to 920 mAh g -1 , can be achieved by adding a Si-containing polymer coating on RH prior to pyrolysis. The SiO x /C anodes demonstrated considerable promise for Li metal-free Li-ion sulfur batteries. ? Copyright 2019 American Chemical Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409024 | ISSN: | 21680485 | DOI: | 10.1021/acssuschemeng.9b00092 | SDG/關鍵字: | Anodes; Environmental protection; High temperature applications; Ions; Plastic coatings; Pyrolysis; Recycling; Scaffolds; Silica; Silicon batteries; Sulfur; Eco-friendly process; Electrode material; Electronic conductivity; High rate capability; Rice husk; Si-containing polymers; Silicon anode; Specific capacities; Lithium-ion batteries |
顯示於: | 化學工程學系 |
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