Related Experiment Video
Updated: Mar 22, 2026

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
Published on: November 10, 2014
Electric Potential Gradient at the Buried Interface between Lithium-Ion Battery Electrodes and the SEI Observed Using
Julia Maibach1, Fredrik Lindgren1, Henrik Eriksson1
1Department of Chemistry - Ångström Laboratory, Uppsala University , Box 538, SE 751 21 Uppsala, Sweden.
Abstract:
The buried interface between the bulk electrode material and the solid electrolyte interphase (SEI) in cycled Li-ion battery anodes is suggested to incorporate an electric potential gradient. This suggestion is based on photoelectron spectroscopy (PES) results from different anode materials that all show relative binding energy shifts between the components of the SEI and the active anode. Implications of this electric potential gradient on binding energy reference points in PES as well as on charge-transfer kinetics in Li-ion batteries are discussed. Specifically, we show that the separation of surface layer and bulk material spectral contributions (depth profiling) is crucial for consistent data interpretation. We conclude that previous interpretations of lithiation as cause for changes in PES spectra may need to be revised.
More Related Videos
09:36In Situ Lithiated Reference Electrode: Four Electrode Design for In-operando Impedance Spectroscopy
Published on: September 12, 2018
11:03Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy
Published on: July 14, 2022
Related Concept Videos
The Electrical Double Layer
Processes at Electrodes
Electrochemical Systems
Standard Electrode Potentials
Electrogravimetric Analysis: Overview
To test the completeness of the...
Interfacial Electrochemical Methods: Overview