Abstract
This article deals with the influence of precursors used in the high-voltage cathode material LiNi0.5Mn1.5O4 based on the LiMn2O4 material on its properties. Precursors with various sizes of particles were used for making the cathode material. Consequently, its influence on the stability during cycling, change of load, and the influence of higher temperatures during cycling were investigated. Produced materials were further analyzed to discover the influence of the change of the used precursor on the structure of the cathode material. The structure of the material deposited on Al foil was investigated by atomic force microscopy (AFM), and also X-ray photoelectron spectroscopy (XPS) analysis was performed. The materials were then observed by SEM and analyzed by the EDAX method. The results show that smaller particle size enhances the properties of cathode material both in the stability during cycling and higher capacity and also the potential under higher load.
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Acknowledgments
This article is based on our presentation at ABAF-14 Advanced Batteries, Accumulators and Fuel cells, Brno, Czech Republic, 01.09.-04.09. 2013. This work was financially supported by the FEI Company, the Centre for Research and Utilization of Renewable Energy under project No. LO1210—“Energy for Sustainable Development (EN-PUR)” and FEKT-S-14-2293 project.
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Contribution to the 14th International Conference: “Advanced Batteries, Accumulators and Fuel Cells” ABAF 14, September 1–5, 2013, Brno, Czech Republic
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Kazda, T., Vondrák, J., Di Noto, V. et al. The influence of used precursors on the properties of high-voltage cathode materials. J Solid State Electrochem 19, 647–653 (2015). https://doi.org/10.1007/s10008-014-2633-6
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DOI: https://doi.org/10.1007/s10008-014-2633-6