Electrochemical performance of single crystalline spinel LiMn2O4 nanowires in an aqueous LiNO3 solution

Single crystalline cubic spinel LiMn2O4 nanowires were synthesized by hydrothermal method and the precursor calcinations. The phase structures and morphologies were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and high-resolution transmission electronmicroscopy (HRTEM). Galvanostatic charging/discharging cycles of as-prepared LiMn2O4 nanowires were performed in an aqueous LiNO3 solution. The initial discharge capacity of LiMn2O4 nanowires was 110mAhg−1, and the discharge capacitywas still above 100mAhg−1 after 56 cycles at 10C-rate, and then 72mAhg−1 was registered after 130 cycles. This is the first report of a successful use of single crystalline spinel LiMn2O4 nanowire as cathode material for the aqueous rechargeable lithium battery (ARLB). © 2011 Elsevier Ltd. All rights reserved.