阳极
碳化
材料科学
化学工程
碳纤维
储能
水热碳化
电化学
纳米技术
电极
化学
复合材料
扫描电子显微镜
复合数
功率(物理)
物理
物理化学
量子力学
工程类
作者
Yipin Gao,Shengyan Piao,Chunhai Jiang,Zhimin Zou
标识
DOI:10.1016/j.diamond.2022.109329
摘要
Deriving carbon electrode materials from biomass resources has been the ongoing research interest for sustainable development of high performance electrochemical energy storage devices. Herein, navel orange peel is used as an abundant raw material to prepare hard carbon anodes for Na and Li-ion batteries through a two-step process. The hydrothermal treatment effectively decomposes the biomass into uniform precursor, while the following high temperature carbonization results in fine hard carbon particles. The hard carbon carbonized at 1300 °C exhibits the best Na ion storage performance including a high initial reversible capacity of 337 mAh g−1 at 0.1 A g−1 and a high remaining capacity of 234 mAh g−1 after 500 cycles at 0.5 A g−1, which can be explained by its featured structure favoring the adsorption-intercalation/filling model. The hard carbon pyrolized at 1100 °C displays a much higher reversible capacity of 428 mAh g−1 than many other biomass-derived hard carbon anodes together with a robust cycle stability. These outstanding Na and Li ion storage properties convincingly demonstrate that the two-step process as well as the abundant navel orange peel resource can provide a potential solution to sustainable development of high performance hard carbon anode materials for Na and Li-ion batteries.
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