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Issue 40, 2008
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Nano-LiNi0.5Mn1.5O4 spinel: a high power electrode for Li-ion batteries

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Abstract

Disordered and ordered forms of nano-Li[Ni0.5Mn1.5]O4 spinel, have been prepared by a one-pot resorcinolformaldehyde synthesis. Lithium intercalation into disordered nano-Li[Ni0.5Mn1.5]O4−δ reveals good rate capability and cycling stability. It delivers 95.5% of the capacity at a rate of 10C (1500 mA g−1) and 88% at 20C (3000 mA g−1) compared with the capacity at low rate (0.2C). A capacity retention on cycling of 99.97% per cycle at 1C rate has also been observed. The superior electrochemical behaviour of disordered nano-Li[Ni0.5Mn1.5]O4−δ has been correlated with AC impedance data, which suggests a modified surface for the nanomaterial prepared using the resorcinol–formaldehyde route compared with micron sized materials prepared by conventional solid state synthesis.

Graphical abstract: Nano-LiNi0.5Mn1.5O4 spinel: a high power electrode for Li-ion batteries

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Publication details

The article was received on 18 Apr 2008, accepted on 30 Jun 2008 and first published on 15 Aug 2008


Article type: Paper
DOI: 10.1039/B806662K
Dalton Trans., 2008, 5471-5475

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    Nano-LiNi0.5Mn1.5O4 spinel: a high power electrode for Li-ion batteries

    K. M. Shaju and P. G. Bruce, Dalton Trans., 2008, 5471
    DOI: 10.1039/B806662K

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