Abstract
Co-coated LiMn2O4 was synthesized by electroless plating. The phase identification, surface morphology, and electrochemical properties of the synthesized powders were studied by X-ray diffraction, scanning electron microscopy, electrochemical impedance spectroscopy, and galvanostatic charge–discharge experiments, respectively. The result shows that Co-coated LiMn2O4 particle has a coarse surface with a lot of holes. The specific capacity of Co-coated LiMn2O4 is 118 mAh g−1, which is a bit less than 123 mAh g−1 for the uncoated LiMn2O4. The capacity retention of Co-coated LiMn2O4 is 11% higher than the uncoated LiMn2O4 when the electrode is cycled at room temperature for 20 times. When cycled at the temperature of 55 °C, the capacity retention of Co-coated LiMn2O4 becomes 15% higher than the uncoated one.
Similar content being viewed by others
References
Scrosati B (2000) Electrochim Acta 45:2461
Lu CH, Lin SW (2001) J Power Sources 97–98:458
Xia O, Sakai T, Fujieda T (2001) J Electrochem Soc 148(9):723
Zhang SS, Xu K, Jow TR (2004) Electrochim Acta 49:1057
Atwater TB, Salkind AJ (2006) J Power Sources 162:773
Zhumabay B, Izumi T (2005) Solid State Ion 176:1027
Gnanaraj JS, Pol VG, Gedanken A, Aurbach D (2003) Electrochem Comm 5:940
Fu ZW, Qin QZ (1999) J Electrochem Soc 146:3914
Shaju KM, Subba Rao GV, Chowdari BVR (2004) Electrochim Acta 49:1565
Jang DH, Shin YJ, Oh SM (1996) J Electrochem Soc 143:2204
Aurbach D (2000) J Power Sources 89:206
Wang E, Ofer D, Bowden W, Iltchev N, Moses R, Brandt K (2000) J Electrochem Soc 147:4023
Blyr A, Sigala C, Amatucci G, Guyomard D, Chabre Y, Tarascon JM (1998) J Electrochem Soc 145:194
Balasubramanian M, Lee HS, Sun X, Yang YQ, Modenbaugh AR, Mcbreen J, Fischer DA, Fu Z (2002) Electrochem Solid-State Lett 5:A22
Acknowledgments
This work was supported by Scientific Research Fund of Hunan Provincial Education Department (No: 07B060).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wu, X.M., Chen, S., Ma, M.Y. et al. Synthesis of Co-coated lithium manganese oxide and its characterization as cathode for lithium ion battery. Ionics 17, 35–39 (2011). https://doi.org/10.1007/s11581-010-0493-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11581-010-0493-3