杂原子
阳极
材料科学
碳纤维
电化学
兴奋剂
无机化学
纳米技术
电导率
钾
化学工程
电极
化学
有机化学
复合材料
物理化学
光电子学
复合数
戒指(化学)
工程类
作者
Yan Wang,Fei Yuan,Zhaojin Li,Di Zhang,Qian Yu,Bo Wang
出处
期刊:APL Materials
[American Institute of Physics]
日期:2022-03-01
卷期号:10 (3)
被引量:8
摘要
Carbonaceous materials are attractive anode candidates for potassium-ion batteries (PIBs) because of their cost-effectiveness, high conductivity, and considerable architecture. However, these carbon materials usually exhibit slow diffusion kinetics and huge volume variation induced by the large ionic size of K-ions, resulting in poor rate capability and cycling stability. Compared to pure carbon, heteroatom (N, S, P, and O)-doped carbons can well improve potassium storage performance by optimizing K-adsorption ability and conductivity, and, hence, exhibit a significant potential in PIBs. This review in-detail summarizes the recent progress of heteroatom-doped carbon anodes based on potassium storage mechanism, design or synthesis strategies, and electrochemical performance, mainly including single-, bi-, and tri-element doped carbons. Moreover, some critical issues and possible solutions for the development of heteroatom-doped carbon in the future are discussed. This review aims at providing a deep insight into the understanding, designing, and application of heteroatom-doped carbon anodes in PIBs and is expected to make an obvious effect on the exploration of other anodes.
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