Abstract
In this work, spinel structure MgFe2O4 nano-crystals were synthesized by sol–gel auto-combustion method. Morphology and structure of the synthesized MgFe2O4 material is characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). And its electrochemical properties were investigated at different active material ratio. Galvanostatic charge/discharge and cyclic voltammograms (CVs) measurements show that the electrode with a ratio of 40:40:20, which is the ratio of active material: super-P carbon (SP): polyvinylidene fluoride (PVDF), presents relatively superior performance with the initial discharge capacity of 1,123 mAh g−1 and charge/discharge efficiency of 96.7 %. And after 50 cycles, it still maintains at 635 mAh g−1, which is nearly double that of the other two electrodes with active material ratio of 60:25:15 and 80:15:5. Electrochemical impedance spectra testing shows that the charge transfer resistance (Rct) decreases along with the increasing amount of SP, which is benefit for reducing the polarization and improving the cycling stability of the electrode to a certain extent.
References
Zhao HX, Zheng Z, Wong KW, Wang S, Huang BJ, Li DP (2007) Electrochem Commun 4:2606–2610
Bomio M, Lavela P, Tirado JL (2008) J Solid State Electrochem 12:729–737
Prakash I, Nallamuthu N, Muralidharan P, Venkateswarlu M, Misra M, Mohanty A, Satyanarayana N (2011) J Sol–Gel Sci Technol 58:24–32
Li ZH, Zhao TP, Zhan XY, Gao DS, **ao QZ, Lei GT (2010) Electrochim Acta 55:4594–4598
Sharma Y, Sharma N, Subba Rao GV, Chowdari BVR (2008) Electrochim Acta 53:2380–2385
Eguchi K, Zank GA (1998) J Sol–Gel Sci Technol 13:945–949
Mohammadi MR, Fray DJ (2010) J Sol–Gel Sci Technol 55:19–35
Sivakumar N, Narayanasamy A, Greneche J-M, Murugaraj R, Lee YS (2010) J Alloys Compd 504:395–402
Jia CJ, Liu Y, Schwickardi M, Weidenthaler C, Spliethoff B, Schmidt W, Schüth F (2010) Appl Catal A 386:94–100
Liu YL, Liu ZM, Yang Y, Yang HF, Shen GL, Yu RQ (2005) Sens Actuators A 107:600–604
Sivakumar N, Gnanakan SRP, Karthikeyan K, Amaresh S, Yoon WS, Park GJ, Lee YS (2011) J Alloys Compd 509:7038–7041
Pradhan SK, Bid S, Gateshki M, Petkov V (2005) Mater Chem Phys 93:224–230
Šepel´ak V, Baabe D, Mienert D, Litterst FJ, Becker KD (2003) Scr Mater 48:961
Wang GX, Chen Y, Konstantinov K, Lindsay M, Liu HK, Dou SX (2002) J Power Sources 109:142–147
Acknowledgments
The work was supported by Henan province foundation and advanced technology research program (102300410256), the Key Scientific and Technological Project (102102210183) and the Natural Science Research Project of Henan Province (2011B480005).
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Yin, Y., Zhang, B., Zhang, X. et al. Nano MgFe2O4 synthesized by sol–gel auto-combustion method as anode materials for lithium ion batteries. J Sol-Gel Sci Technol 66, 540–543 (2013). https://doi.org/10.1007/s10971-013-2967-z
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DOI: https://doi.org/10.1007/s10971-013-2967-z