期刊
JOURNAL OF POWER SOURCES
卷 311, 期 -, 页码 35-41出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.01.031
关键词
Nanotube; Electrospinning; Secondary particles; Li-ion batteries
资金
- National Natural Science Foundation of China [51374146, 50874074]
- Shenzhen Government's Plan of Science and Technology [JCYJ20120613173950029, JCYJ20140418095735619]
One-dimensional nanotubes constructed from interconnected Li1.2Mn0.54Ni0.13Co0.13O2 secondary particles of diameters measuring ca. 40 nm, were synthesized by a one-pot electrospinning method. Novel electrodes were constructed from (a) nanoparticles only, and (b) hollow nanofibres, and employed as cathodes in Li-ion batteries. The nanotube cathode exhibited impressive specific charge capacity, good cycling stability, and excellent rate capability. A discharge capacity of 140 mAh g(-1) with capacity retention of 89% at 3 C was achieved after 300 cycles. The significant improvement of electrochemical performance is attributed to the high surface area of the nanotubes, well-guided charge transfer kinetics with short ionic diffusion pathways, and large effective contact area with the electrolyte during the cycling process. (C) 2016 Elsevier B.V. All rights reserved.
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