Abstract
We investigated the electrochemical cycling effects on the average, local, and electronic structures of 1st and 28th cycled Li1−xNi0.5Mn1.5O4 (LNMO) by Rietveld refinements, the maximum entropy method (MEM) for synchrotron X–ray, and X–ray absorption spectroscopy (XAS) using unexposed cathode materials. The results obtained with Rietveld refinements and XAS showed that the electrochemical cycling increases the transition metal valences, distorts the (Ni, Mn)–O6 octahedral, and decreases the Ni content in LNMO. Through MEM analyses we found that Li ions were stabilized by the electrochemical cycling. We also used synchrotron X–ray analyses to ascertain the correlation among specific capacity degradation, average and local structures, and the electron density before and after cycled LNMO.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
