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

被引：190

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

页码：3000 / 3005

页数：6

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