Synthesis and Electrochemical Performance of Graphite Oxide as Cathode Material for Rechargeable Batteries

Abstract:

Graphite oxide (GO) is layered structure with functional groups such as hydroxyl, carboxyl and carbonyl between layers. Using GO as cathode active material allows lithium ions to enter the interior of cathode active material easily and the transformation of crystal form can also be obviated. GO has large amounts of surface area which enables cathode material to contact with liquid electrolyte directly, thereby direct and fast surface adsorption and reaction with lithium ions can be achieved. In this article, GO was prepared by modified Hummers method, characterized by XRD, IR, TG, and its electrochemical performance is studied as cathode active material. It is discovered that capacity can be dramatically improved and the cycle performance is excellent when GO is used as cathode material. The discharge capacity of first cycle can reach 480mAh/g at the current density 0.1A/g. The capacity is above 90% after 10 cycles.

• Periodical: Materials Science Forum (Volumes 743-744)
• Pages: 8-12
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.743-744.8
• Online since: January 2013
• Authors: Ding Ding Gao, Zhen Zhang
• Keywords: Cathode Material, Electrochemical Performance, Graphite Oxide, Lithium-Ion Battery

References

[1] D. Huang, Solid solution: new cathodes for next generation lithium-ion batteries, J. Adv. Batt. Tech. 11 (1998) 23-27.

[2] M. Wakihara, Recent developments in lithium ion batteries, J. Mater. Sci. Eng. 33 (2001) 109-134.

[3] A.G. Ritcgie, Recent development and future prospects for lithium rechargeable batteries, J. J. Power Sources 96 (2001) 1-4.

[4] Y. Gao, J. R. Dahn, Synthesis and characterization of Li1+xMn2- xO4 for lithium ion battery application, J. J. Electrochem. Soc. 143 (1996) 100-114.

[5] H.S. Kim, B.W. Cho, W.I. Cho, Cycling performance of LiFePO4 cathode material for lithium secondary batteries, J. J. Power Sources 132 (2004) 235-239.

DOI: 10.1016/j.jpowsour.2003.12.058

[6] G. Meligrana, C. Gerbaldi, A. Tuel, S. Bodoardo, N. Penazzi, Hydrothermal synthesis of high surface LiFePO4 powders as cathode for Li-ion cells, J. J. Power Sources 160 (2006) 516-522.

DOI: 10.1016/j.jpowsour.2005.12.067

[7] H. Liu, C. Li, H.P. Zhang, L.J. Fu, Y.P. Wu, H.Q. Wu, Kinetic study on LiFePO4/C nano-composites synthesized by solid state technique, J. J. Power Sources 159 (2006) 717-720.

DOI: 10.1016/j.jpowsour.2005.10.098

[8] D. Choi, P.N. Kumta, Surfactant based sol-gel approach to nanostructured LiFePO4 for high rate Li-ion batteries, J. J. Power Sources 163 (2007) 1064-1069.

DOI: 10.1016/j.jpowsour.2006.09.082

[9] B.Z. Jang, C.G. Liu, D. Neff, Z.N. Yu, Graphene surface-enabled lithium ion-exchanging cells: next-generation high-power energy storage devices, J. Nano Lett. 11 (2011) 3785–3791.

DOI: 10.1021/nl2018492

[10] J. Xia, D.X. Tang, Functional groups containing oxygen in the layers of graphite oxide, J. Journal of Anhui Polytechnic University 26 (2011) 17-19.

[11] B.C. Brodie, On the Atomic Weight of Graphite, J. Phil. Trans. R. Soc. Lond. 149 (1859) 249-259.

[12] A.M. Rodiguez, P.S.V. Jiménez, Some New Aspects of Graphite Oxidation at 0°C in a Liquid Medium. A Mechanism Proposal for Oxidation to Graphite Oxide, J. Carbon 24 (1986) 163-167.

DOI: 10.1016/0008-6223(86)90112-0

[13] W.S. Hummers, R.E. Offeman, Preparation of Graphite Oxide, J. J. Am. Chem. Soc. 80 (1958) 1339-1339.

DOI: 10.1021/ja01539a017

[14] M.J. Hudson, F.R. Hunter, J.W. Peckett, P.M. Smith, Electrochemically prepared colloidal, oxidised graphite, J. J. Mater. Chem. 7 (1997) 301-305.

DOI: 10.1039/a603982k