Operando X-Ray Mapping of Ion Transport and Arrangement in a Carbon-Based Supercapacitor Electrode

Key Points

• This research evaluates how ions move and are arranged in carbon-based supercapacitor electrodes using advanced X-ray techniques.
• Utilized position- and time-resolved X-ray transmission (XRT) for mapping ion transport.
• Employed small-angle X-ray scattering (SAXS) to analyze nanoscale ion arrangement.
• Focused on in-plane carbon-based supercapacitor working electrodes.
• Found detailed patterns of ion transport within the electrode material.
• Identified specific nanoscale arrangements of ions that influence performance.
• Revealed the dynamic nature of ion behavior in real-time under operational conditions.