Silicon-Carbon Nanotube Coaxial Sponge as Li-Ion Anodes with High Areal Capacity

被引：213

作者：

Hu, Liangbing ^{[1
]}

Wu, Hui ^{[1
]}

Gao, Yifan ^{[2
]}

Cao, Anyuan ^{[3
]}

Li, Hongbian ^{[3
]}

McDough, James ^{[1
]}

Xie, Xing ^{[1
]}

Zhou, Min ^{[2
]}

Cui, Yi ^{[1
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[2] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

[3] Peking Univ, Coll Engn, Dept Adv Mat & Nanotechnol, Beijing 100871, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2011年 / 1卷 / 04期

基金：

北京市自然科学基金; 新加坡国家研究基金会;

关键词：

BATTERIES; ELECTRODES; NANOWIRES; EVOLUTION;

D O I：

10.1002/aenm.201100056

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：

Highly porous, conductive Si-CNT sponge-like structures with a large areal mass loading are demonstrated as effective Li-ion battery anode materials. Nano-pore formation and growth in the Si shell has been identified as the primary failure mode of the Si-CNT sponge anode, and the formation of such nanopores can be minimized by tuning the cutoff voltages. In conjunction with experiments, a theoretical analysis was carried out to explain the pore formation mechanism. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：523 / 527

页数：5

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