Improving the Capacity of Sodium Ion Battery Using a Virus-Templated Nanostructured Composite Cathode

被引：72

作者：

Moradi, Maryam ^{[1
,2
]}

Li, Zheng ^{[1
]}

Qi, Jifa ^{[1
]}

Xing, Wenting ^{[1
]}

Xiang, Kai ^{[1
]}

Chiang, Yet-Ming ^{[1
]}

Belcher, Angela M. ^{[1
,2
,3
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[2] MIT, David H Koch Inst Integrat Canc Res, Cambridge, MA 02139 USA

[3] MIT, Dept Biol Engn, Cambridge, MA 02139 USA

来源：

NANO LETTERS | 2015年 / 15卷 / 05期

关键词：

Sodium ion battery; amorphous FePO4; biotemplated active material; SWCNT; high-power rechargeable battery; ENERGY-STORAGE; LITHIUM; NANOWIRES; STABILITY; OLIVINES; LI;

D O I：

10.1021/nl504676v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work we investigated an energy-efficient biotemplated route to synthesize nanostructured FePO4 for sodium-based batteries. Self-assembled M13 viruses and single wall carbon nanotubes (SWCNTs) have been used as a template to grow amorphous FePO4 nanoparticles at room temperature (the active composite is denoted as Bio-FePO4-CNT) to enhance the electronic conductivity of the active material. Preliminary tests demonstrate a discharge capacity as high as 166 mAh/g at C/10 rate, corresponding to composition Na0.9FePO4, which along with higher C-rate tests show this material to have the highest capacity and power performance reported for amorphous FePO4 electrodes to date.

引用

页码：2917 / 2921

页数：5

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