Kinetics-driven high power Li-ion battery with a-Si/NiSix core-shell nanowire anodes

被引：60

作者：

Kang, Kibum ^{[2
]}

Song, Kyeongse ^{[1
]}

Heo, Hoseok ^{[3
]}

Yoo, Sunyoung ^{[2
]}

Kim, Gil-Sung ^{[2
]}

Lee, Geunhee ^{[2
]}

Kang, Yong-Mook ^{[1
]}

Jo, Moon-Ho ^{[2
,3
]}

机构：

[1] Kongju Natl Univ, Div Adv Mat Engn, Cheonan 330717, Chungnam, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyungbuk, South Korea

[3] Pohang Univ Sci & Technol POSTECH, Div Adv Mat Sci, Pohang 790784, Gyungbuk, South Korea

来源：

CHEMICAL SCIENCE | 2011年 / 2卷 / 06期

关键词：

REVERSIBLE LITHIUM STORAGE; HIGH-CAPACITY; SILICON; GROWTH;

D O I：

10.1039/c0sc00628a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report amorphous-Si nanowire shell anodes, supported by NiSix nanowire cores, by catalyst-free two-step SiH4 chemical vapor deposition, where the metallic core acts as a mechanical supporter and a kinetically unlimited charge supplier. We have achieved highly reversible capacitance of over 3000 mAh g(-1) even at a 2C rate, with stable cyclic retention which stems from the altered electrochemical reactions with relatively small volume expansion routes by a kinetic effect.

引用

页码：1090 / 1093

页数：4

共 36 条

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