阳极
锂(药物)
材料科学
钠
碳纤维
化学工程
单宁酸
电化学
生物量(生态学)
介孔材料
无机化学
化学
电极
有机化学
催化作用
复合材料
复合数
海洋学
地质学
医学
物理化学
工程类
冶金
内分泌学
作者
Gang Huang,Qingquan Kong,Weitang Yao,Hongtao Wang
标识
DOI:10.1016/j.jcis.2022.08.165
摘要
Due to abundant resources and low prices, biomass-derived carbons as anodes for lithium ion batteries (LIBs) and sodium ion batteries (SIBs) have been widely reported. However, it is still a challenge to design a biomass-derived carbon material that has immunity to environmental influences, stable chemical composition and controllable morphology. In this paper, tannic acid (TA) as a precursor is first reported to synthesize rod structures with abundant mesopores and defects (PTA-700). These features can provide more active sites and space for lithium and sodium ions storage, which is conducive to lithium and sodium ions transfer. Excellent electrochemical performance is observed in LIBs (535 mAh/g after 100 cycles at 0.1 A/g) and SIBs (114.0 mAh/g after 3000 cycles at 1 A/g). Kinetics analysis and density functional theory (DFT) calculations were carried out to further analyze the superior lithium and sodium ions storage performance of PTA-700. More importantly, PTA-700 solves many problems faced by traditional biomass-derived carbons in commercialization. Our work suggests an effective way to develop high-performance biomass-derived carbon anode materials for LIBs and SIBs.
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