Publication Type:

Journal Article


Electrochimica Acta, Volume 146, p.270 - 277 (2014)



Chemical co-precipitation


\{ABSTRACT\} A facile urea-assisted template-free, surfactant-less chemical co-precipitation method was used to obtain a flower-like cobalt oxide sample followed by annealing at various temperatures of 400, 500, and 600 °C for 2 h. The obtained flower-like morphology was assembled by nanorods, and the nanorods were comprised of interconnected particles with a porous structure. The changes in the surface area of the obtained flower-like Co3O4 samples were systematically examined at various temperatures and their impact on the electrochemical performances was observed. Electrochemical investigation showed that the flower-like Co3O4 samples obtained at 500 °C, showed excellent cycling stability (1536.9 mA h g−1 at 0.1 C up to 50 cycles and 1226.9 mA h g−1 at 0.5 C up to 350 cycles) and superior rate capability (845 mA h g−1 at 10 C). It is believed that the porous nature of the unique structure facilitates the penetration of the electrolyte at the electrode/electrolyte interface and provides a large space for strain buffering, which ultimately allows the present sample to achieve high rate performances.

Cite this Research Publication

J. Harsharaj S., Rai, A. Kumar, Young, L. Jae, Jaekook, K., and Chan-Jin, P., “Enhanced electrochemical performance of flower-like Co 3 O 4 as an anode material for high performance lithium-ion batteries”, Electrochimica Acta, vol. 146, pp. 270 - 277, 2014.