Na3V2O2x(PO4)2F3-2x: a stable and high-voltage cathode material for aqueous sodium-ion batteries with high energy density

被引：109
作者：
Kumar, P. Ramesh [1 ]
Jung, Young Hwa [1 ]
Lim, Chek Hai [1 ]
Kim, Do Kyung [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 12期
关键词：
RECHARGEABLE BATTERIES; LI; ANODE; FAMILY;
D O I：
10.1039/c5ta00980d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The reversible electrochemical activity of the Na3V2O2x(PO4)(2)F3-2x compound in an aqueous solution is reported for the first time. Na3V2O2x(PO4)(2)F3-2x with multi-walled carbon nanotubes (MWCNTs) exhibits a long-term stability for up to 1100 cycles in aqueous electrolytes. Two different types of Na-ion full-cells demonstrate the feasibility of the Na3V2O2x(PO4)(2)F3-2x/MWCNT composite as a cathode for aqueous sodium-ion batteries. A high full-cell voltage of 1.7 V and a high energy density of 84 W h kg (1) were achieved using Zn metal as an anode.
引用
收藏
页码：6271 / 6275
页数：5
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