A Simple Approach to Prepare Metal Oxides Supra-Structures for LIBs

A Simple Approach to Prepare Metal Oxides Supra-Structures for LIBs

Zahra PadashbarmchiAmir Hossein Hamidian Owen Noonan Nematolah Khorasani Mahmood Kazemzad 

Department of Environmental Sciences, Faculty of Natural Resources, University of Tehran, P.O.Box 31585-4314, Karaj, Iran

Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia

Department of Energy, Materials and Energy Research Center, P.O.Box 14155-4777, Tehran, Iran

Corresponding Author Email: 
zhrpadash@gmail.com
Page: 
87-90
|
DOI: 
https://doi.org/10.14447/jnmes.v18i2.374
Received: 
10 December 2014,
|
Accepted: 
7 March 2015,
|
Published: 
10 April 2015
| Citation
Abstract: 

A variety of materials have been investigated as potential electrode materials for LIBs. Electrodes including Fe, Co, Ni or Cu have more Lithium ion storage capacity (more than 600 mAh/g) comparing to graphite (about 372 mAh/g). Recently, much effort has been focused toward achieving 3-dimensional hollow spheres with high surface area and porous for better capacity performance. In this study a simple spray drying approach has been introduced to synthesize porous CuO and Co3O4 microspheres. The results revealed that uniform structures of the nanoparticles microspheres were achieved. Then their cyclic performance were analyzed and compared to their commercial counterparts. The porous CuO microspheres and Co3O4 microspheres exhibited high capacity retention (86.2% of the discharge capacity of the second cycle after 60 cycles) and (89.8% of the discharge capacity of the second cycle after 40 cycles) at a current density of 400 mA/g, respectively. The excellent electrochemical properties could be attributed to their unique porous structures. The electrochemical results showed that microspheric electrode materials are able to manifest superior electrochemical properties compared to their commercial counterparts.

Keywords: 

Co3O4, CuO, Porous microspheres, Anode material, Lithium ion battery, Spray drying method

1. Introduction
2. Experimental Section
3. Results and Discussion
4. Conclusions
Acknowledgements

We wish to acknowledge Prof. Chengzhong Yu and Dr. Liang Zhou from the Australian Institute for Bioengineering and Nano-technology, The University of Queensland for helpful assistance.

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