Mesoporous Li<inf>1.2</inf>Mn<inf>0.54</inf>Ni<inf>0.13</inf>Co<inf>0.13</inf>O<inf>2</inf>nanotubes for high-performance cathodes in Li-ion batteries

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Authors: Ma, D., Li, Y., Zhang, P., Cooper, A.J., Abdelkader, A.M., Ren, X. and Deng, L.

Journal: Journal of Power Sources

Volume: 311

Pages: 35-41

ISSN: 0378-7753

DOI: 10.1016/j.jpowsour.2016.01.031

© 2016 Elsevier B.V. One-dimensional nanotubes constructed from interconnected Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 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.

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