Y. C. Kan, Y. Hu, J. Croy, Y. Ren, C. J. Sun, S. M. Heald, J. Bareno, I. Bloom and Z. H. Chen (2014) Formation of Li2MnO3 investigated by in situ synchrotron probes. Journal/Journal Of Power Sources 266 341-346. [In English]
Web link: http://dx.doi.org/10.1016/j.jpowsour.2014.05.032
Keywords: ,In situ probes, XRD, XANES, Factor analysis, Lithium battery, FE-SUBSTITUTED LI2MNO3, LITHIUM-ION BATTERIES, X-RAY-DIFFRACTION, LAYERED-OXIDE, ELECTROCHEMICAL ACTIVITY, POSITIVE ELECTRODE, PHASE-TRANSITIONS, CATHODE MATERIALS, LOCAL-STRUCTURE, CAPACITY

Abstract: Both in situ high-energy X-ray diffraction and in situ X-ray absorption spectroscopy were used to investigate the structural evolution of materials during the solid-state synthesis of Li2MnO3. Combing Xray absorption spectroscopy and factor analysis techniques, we were able to capture the spectrum and evolution of an intermediate phase (MnO2) that could not be detected by the diffraction technique. Meanwhile, the X-ray diffraction data clearly showed the anisotropic crystallization of Li2MnO3 during sintering above 600 degrees C. (C) 2014 Elsevier B.V. All rights reserved.