期刊
JOM
卷 70, 期 8, 页码 1387-1391出版社
SPRINGER
DOI: 10.1007/s11837-018-2789-0
关键词
-
类别
资金
- National Science Foundation of China [51474057, 51274057]
- Fundamental Research Funds for the Central Universities [N162502003]
Porous hard carbon with large interlayer distance was fabricated from walnut shells through a facile high-temperature pyrolysis process and investigated as an anode material for sodium-ion batteries (SIBs). The results show that the electrochemical performance is mainly dependent on the pyrolysis temperature. The porous hard carbon, which was carbonized at 1300A degrees C, displays the highest reversible capacity of 230 mAh g(-1) at 20 mA g(-1) and an excellent cycling stability (96% capacity retained over 200 cycles). The promising electrochemical performances are attributed to the porous structure reducing distances for sodium ion diffusion and expanded interlayer spacing, which is beneficial for sodium reversible insertion/extraction. The excellent electrochemical performance as well as the low-cost and environmental friendliness demonstrates that walnut shell-derived porous hard carbon is a promising anode material candidate for SIBs.
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