期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 6, 期 27, 页码 13075-13081出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta03270j
关键词
-
资金
- National Natural Science Foundation of China [51522101, 51471075, 51631004, 51401084]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20110061120040]
- Program for Innovative Research Team (in Science and Technology) in University of Jilin Province
Na-ion batteries (NIBs) are very attractive candidates for large-scale electrical energy storage due to abundant Na resources, while developing air stable, low cost and toxic Co/Ni-free cathodes to achieve high energy/power density and long-life NIBs is very challenging. Herein, as a proof-of-concept experiment, rare P3-type K(0.32)Fe(0.35)Mn(0.65)O(2)0.39H(2)O (KFM) made from environmentally friendly and low cost elements is first proposed and demonstrated to be a novel cathode for NIBs. Unexpectedly, the KFM exhibits outstanding electrochemical performances including high specific capacity (137.5 mA h g(-1)), rate capability and coulombic efficiency (ca. 100%), and long cycle stability (1000 cycles). Furthermore, a highly efficient prototype NIB was first realized using this KFM cathode and a Na-x-Sb2O3 anode, which shows high energy density and power density (220.5 W h kg(-1); 4340 W kg(-1)) even with high round-trip energy efficiency (ca. 100%) and excellent cycling stability (over 900 cycles).
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