Journal
JOURNAL OF POWER SOURCES
Volume 282, Issue -, Pages 1-8Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.02.016
Keywords
Lithium ion battery; Anode; Pulsed spray evaporation chemical vapor deposition; Metal oxide
Funding
- National Natural Science Foundation of China [NSFC-21373184]
- Alexander von Humboldt (AvH) Foundation [3.4-8151/11 044]
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Metal-oxide anodes represent a significant future direction for advanced lithium ion batteries. However, their practical applications are still seriously hampered by electrode disintegration and capacity fading during cycling. Here, we report a rational design of 3D-staggered metal-oxide nanocomposite electrode directly fabricated by pulsed spray evaporation chemical vapor deposition, where various oxide nanocomponents are in a staggered distribution uniformly along three dimensions and across the whole electrode. Such a special design of nanoarchitecture combines the advantages of nanoscale materials in volume change and Li+/electron conduction as well as uniformly staggered and compact structure in atom migration during lithiation/delithiation, which exhibits high specific capacity, good cycling stability and excellent rate capability. The rational design of metal-oxide nanocomposite electrode opens up new possibilities for high performance lithium ion batteries. (C) 2015 Elsevier B.V. All rights reserved.
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