PowerpointPresentation_Update2024 x-rays

in situ measurement

1. SUBTITLE GOES HERE Presenter Name Title, Department Name WWW.PME.UCHICAGO.EDU

2. Jahnavi Manikantan Sudharma WWW.PME.UCHICAGO.EDU Applications of In Situ Synchrotron Studies in Battery Materials

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4. WWW.PME.UCHICAGO.EDU Real-Time Monitoring of Electrode Phase Transitions Track structural evolution (e.g., lithiation/ delithiation in Li-ion, sodiation in Na-ion). Example: in situ X-ray diffraction (XRD) to observe LiFePO ₄ ↔ FePO ₄ transitions. Interfacial Chemistry & SEI Formation In situ X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) for chemical state changes at electrode–electrolyte interfaces. Mapping Ion Diffusion and Distribution X-ray tomography and imaging to visualize Li-ion movement, detect heterogeneity and dendrite growth in solid-state batteries. Degradation Mechanism Analysis Track formation of unwanted phases (e.g., transition metal dissolution in Ni-rich cathodes) and structural fatigue over cycles. High-Throughput Materials Screening Rapid testing of candidate materials’ structural evolution under operando conditions. Applications of In Situ Synchrotron Studies in Battery Materials

5. WWW.PME.UCHICAGO.EDU Ultrafast Charge Transfer Dynamics Probe photoinduced electron transfer or ion insertion dynamics in electrode materials on femto –pico-second timescales. Transient States in Electrochemical Reactions Detect short-lived intermediate species or phase transitions not visible via conventional X-ray sources. Nonlinear Spectroscopy of Battery Interfaces FELs can drive nonlinear X-ray processes to explore interfacial electronic structure or charge accumulation. Probing Light-Induced Processes in Photo-batteries or Hybrid Systems Understand how light modulates charge dynamics in emerging photo-rechargeable batteries. Applications of FELs in Battery Research

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