Virus-Enabled Silicon Anode for Lithium-Ion Batteries

被引：211

作者：

Chen, Xilin ^{[1
]}

Gerasopoulos, Konstantinos ^{[2
,3
]}

Guo, Juchen ^{[1
]}

Brown, Adam ^{[4
]}

Wang, Chunsheng ^{[1
]}

Ghodssi, Reza ^{[2
,3
,5
]}

Culver, James N. ^{[4
]}

机构：

[1] Univ Maryland, Inst Biotechnol, Dept Chem & Biomol Engn, College Pk, MD 20742 USA

[2] Univ Maryland, Inst Biotechnol, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[3] Univ Maryland, Inst Biotechnol, Syst Res Inst, College Pk, MD 20742 USA

[4] Univ Maryland, Inst Biotechnol, Ctr Biosyst Res, College Pk, MD 20742 USA

[5] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA

来源：

ACS NANO | 2010年 / 4卷 / 09期

关键词：

silicon anode; lithium-ion battery; Tobacco mosaic virus; physical vapor deposition; nanostructure; CORE-SHELL NANOWIRES; HIGH-CAPACITY; ELECTRODES; TIN; COMPOSITES; DEPOSITION; LI;

D O I：

10.1021/nn100963j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel three-dimensional Tobacco mosaic virus assembled silicon anode is reported. This electrode combines genetically modified virus templates for the production of high aspect ratio nanofeatured surfaces with electroless deposition to produce an integrated nickel current collector followed by physical vapor deposition of a silicon layer to form a high capacity silicon anode. This composite silicon anode produced high capacities (3300 mAh/g), excellent charge-discharge cycling stability (0.20% loss per cycle at 1C), and consistent rate capabilities (46.4% at 4C) between 0 and 1.5 V. The biological templated nanocomposite electrode architecture displays a nearly 10-fold increase in capacity over currently available graphite anodes with remarkable cycling stability.

引用

页码：5366 / 5372

页数：7

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