Chung, Kyung Yoon Yoon, Won-Sub Kim, Kwang-Bum Cho, Byung-Won Yang, Xiao-Qing 2024-01-20T16:02:22Z 2024-01-20T16:02:22Z 2021-09-05 2011-11 0021-891X https://pubs.kist.re.kr/handle/201004/129834 The solid electrolyte interface (SEI) formation on the surface of LiMn2O4 electrodes during room temperature charge-discharge cycling was studied using soft X-ray absorption spectroscopy at the Fluorine (F) K-edge. LiMn2O4 electrodes without any binder were prepared by electrostatic spray deposition to eliminate the signal originating from the PVDF binder in the F K-edge X-ray absorption spectra. The F K-edge absorption spectra show that the SEI layer forms at a very early stage of cycling. SEI growth takes place during discharge. In addition, LiF formation is accelerated if the discharge step follows a charge step. The F K-edge absorption spectra suggest that the major component of the SEI is LiF. English SPRINGER THIN-FILM ELECTRODES STRUCTURAL FATIGUE SPINEL ELECTRODES CAPACITY LOSSES BATTERIES PERFORMANCE OXIDES Formation of an SEI on a LiMn2O4 cathode during room temperature charge-discharge cycling studied by soft X-ray absorption spectroscopy at the Fluorine K-edge Article 10.1007/s10800-011-0344-6 1 JOURNAL OF APPLIED ELECTROCHEMISTRY, v.41, no.11, pp.1295 - 1299 JOURNAL OF APPLIED ELECTROCHEMISTRY 41 11 1295 1299 scie scopus 000295988700006 2-s2.0-83155175298 Electrochemistry Electrochemistry Article THIN-FILM ELECTRODES STRUCTURAL FATIGUE SPINEL ELECTRODES CAPACITY LOSSES BATTERIES PERFORMANCE OXIDES LiMn2O4 SEI LiF Soft X-ray absorption spectroscopy Lithium secondary batteries