期刊
ELECTROCHIMICA ACTA
卷 293, 期 -, 页码 364-370出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.10.036
关键词
Potato; Biomass; Mesoporous; Potassium ion batteries; Anode
资金
- National Natural Science Foundation of China [51672078, 21473052, 61474041]
- Hunan University State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Independent Research Project [71675004]
- Hunan Youth Talents [2016RS3025]
- Foundation of State Key Laboratory of Coal Conversion [J17-18-903]
- Hunan Provincial Innovation Foundation for Postgraduate [CX2017B089]
Biomaterials play a significant role in energy storage devices owing to their renewable, inexpensive and eco-friendly peculiarity. In this study, potato biomass porous carbon (PBPC), which was fabricated by a facile two-step carbonization, was used as the anode material for potassium-ion batteries (KIBs). The crystal structure and mesoporous morphology of the carbon derivative at various carbonation temperatures are fully investigated. The electrochemical performance of PBPC electrodes is evaluated, presenting a high reversible specific capacity (248 mA h g(-1) at 100 mA g(-1)), an excellent rate performance (152 mA h g(-1) at 1000 mA g(-1)) and a superior cycle stability (almost no capacity decay after 400 cycles at a current density of 500 mA g(-1) with a Coulombic efficiency about 100%). The superior electrochemical performance is mainly attributed to the uniformly distributed mesopores on PBPC electrode which facilitate the electrolyte transportation and diffusion. This work provides a simple and novel strategy to construct porous carbon as high-performance anode materials for KIBs through a sustainable and environment-friendly way. (c) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据