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Monodisperse Porous Alluaudite NaFePO4 Nanocomposites for Sodium Ion Battery

Tuesday, 10 June 2014
Cernobbio Wing (Villa Erba)
W. Huang (National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P.R. China.), J. Zhou (Chinese Academy of Sciences, Shanghai Institute Applied Physics, Shanghai 201204, P.R. China), B. Li (Key lab of theory and technology for advanced batteries materials, College of Engineering, Peking University, Beijing 100871, P. R. China.), L. An (Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, College of Engineering, Peking University), P. Cui (National Synchrotron Radiation Laboratory, University of Science and Technology of China), W. Xia (College of Engineering, Peking University, Beijing), D. Xia (Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, College of Engineering, Peking University), W. Chu (National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P.R. China.), and Z. Wu (University of Science and Technology of China)
Looking for a new promising cathode material of sodium ion batteries (SIBs) is a challenge for large energy storage systems. Here we present a study of a novel alluaudite NaFePO4 and NaFePO4/CNT nano-composites for SIBs application. The new monodisperse porous NaFePO4 microspheres and their nano-composites consist of nanorods with an open three-dimensional framework. First principles calculations identify two fast one-dimensional paths for Na+ insertion and extraction. Moreover, the electrochemical characterization demonstrates that up to 0.9 Na+ can be intercalated/deintercalated reversibly even for 50 cycles using this novel NaFePO4/CNT nano-composite.
See more of: Session 3 - Anodes and Cathodes Posters
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See more of: Batteries and Energy Storage
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