A flexible lithium manganese oxide (LiMn2O4)/multi-wall carbon nanotube (MWCNT) composite electrode was produced by casting a slurry-containing powdered LiMn2O4 on a previously prepared MWCNT paper. The structure of this new LiMn2O4/MWCNT composite electrode was characterized using scanning electron microscopy and X-ray diffraction patterns. Furthermore, the surfaces of these electrodes were coated with gold–palladium alloy using an RF magnetron sputtering technique to prevent Mn dissolution. To investigate the electrochemical performance of this flexible LiMn2O4/MWCNT composite electrode, a bare-LiMn2O4 electrode was prepared. The discharge capacity of the produced LiMn2O4/MWCNT nanocomposite electrode was cyclically tested, and the charge transfer resistance of the electrodes was studied using electrochemical impedance spectroscopy. Consequently, the Au–Pd-coated LiMn2O4/MWCNT had a 120 mAh g−1 discharge capacity and 90 % capacity retention after 100 cycles.
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This work is supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under the contract number 111M021. The authors thank the TUBITAK MAG workers for their financial support.
Chew SY, Ng SH, Wang J, Novak P, Krumeich P, Chou SL, Chen J, Liu HK (2009) Carbon 47:2976–2983CrossRefGoogle Scholar