Eldfellite, NaFe(SO4)2: an intercalation cathode host for low-cost Na-ion batteries

被引：181
|
作者：
Singh, Preetam [1 ]
Shiva, Konda
Celio, Hugo
Goodenough, John B.
机构：
[1] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA
来源：
ENERGY & ENVIRONMENTAL SCIENCE | 2015年 / 8卷 / 10期
关键词：
ELECTRODE MATERIALS; RECHARGEABLE BATTERIES; LITHIUM INTERCALATION; SODIUM BATTERY; INSERTION; SULFATE;
D O I：
10.1039/c5ee02274f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The mineral eldfellite, NaFe(SO4)(2), is characterized as a potential cathode for a Na-ion battery that is fabricated in charged state; its 3 V discharge versus sodium for reversible Na+ intercalation is shown to have a better capacity, but lower insertion rate than Li+ intercalation. The theoretical specific capacity for Na+ insertion is 99 mA h g(-1). After 80 cycles at 0.1C versus a Na anode, the specific capacity was 78 mA h g(-1) with a coulomb efficiency approaching 100%.
引用
收藏
页码：3000 / 3005
页数：6
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