Mesoporous Li1.2Mn0.54Ni0.13Co0.13O2 nanotubes for high-performance cathodes in Li-ion batteries

Dingtao Ma, Yongliang Li, Peixin Zhang, Adam J. Cooper, Amr M. Abdelkader, Xiangzhong Ren, Libo Deng

    Research output: Contribution to journalArticlepeer-review

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)35-41
    Number of pages7
    JournalJournal of Power Sources
    Volume311
    Early online date16 Feb 2016
    DOIs
    Publication statusPublished - 15 Apr 2016

    Keywords

    • Electrospinning
    • Li-ion batteries
    • Nanotube
    • Secondary particles

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