Lithium fiber growth on the anode in a nanowire lithium ion battery during charging

被引：104

作者：

Liu, Xiao Hua ^{[1
]}

Zhong, Li ^{[2
]}

Zhang, Li Qiang ^{[2
,4
]}

Kushima, Akihiro ^{[3
]}

Mao, Scott X. ^{[2
]}

Li, Ju ^{[3
]}

Ye, Zhi Zhen ^{[4
]}

Sullivan, John P. ^{[1
]}

Huang, Jian Yu ^{[1
]}

机构：

[1] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA

[2] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA

[3] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

[4] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 18期

基金：

美国国家科学基金会;

关键词：

CELLS; ELECTRODE; DENSITY; STORAGE; METAL;

D O I：

10.1063/1.3585655

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Lithium (Li) dendrite formation has been recognized as one of the major safety concerns for Li metal batteries but not for conventional Li ion batteries (LIBs) where Li metal is not used. With the advanced in situ transmission electron microscopy enabling direct observation of battery operation, we found that Li fibers with length up to 35 mu m grew on nanowire tip after charging. The Li fibers growth were highly directional, i.e., nucleating from the nanowire tip, and extending along the nanowire axis, which was attributed to the strong electric field enhancement effect induced by the sharp nanowire tip. This study reveals a potential safety concern of short-circuit failure for LIBs using nanowire anodes. (C) 2011 American Institute of Physics. [doi:10.1063/1.3585655]

引用

页数：3

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