470624 Solution Combustion Synthesis for High Performance ZnCo2O4 Anode in Lithium-Ion Batteries

Wednesday, November 16, 2016: 9:30 AM
Continental 1 (Hilton San Francisco Union Square)
Ryan A. Adams, Vilas G. Pol and Arvind Varma, School of Chemical Engineering, Purdue University, West Lafayette, IN

Nanostructured, tailored ZnCo2O4 is synthesized by solution combustion synthesis using two fuels, glycine and citric acid, to explore how reaction conditions impact electrochemical performance as a Li-ion anode. Owing to the unique combustion reaction mechanism, the novel strategy of using mixed fuels and ammonium nitrate creates anode material with improved cycling stability and capacity. Characterization shows a mesoporous spinel product, composed of nanoparticles assembled into micron-sized secondary structures, with properties varied by the fuel ratio and type. A stable capacity of 1,200 mAh g-1 is achieved at C/10 and 1000 mAh g-1 at 1C, showing high energy and power capabilities as compared to the bulk material. Based on an understanding of the reaction mechanisms and influence of reaction parameters, solution combustion synthesis is a powerful and flexible technique to produce superior electrode materials.

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