1. A new approach to surface properties of solid electrolyte interphase on a graphite negative electrode
- Author
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Joo-Han Song, Seon-Hong Lee, Kyusuk Han, In-Ho Jung, Kim Jake, and Ho-Gon You
- Subjects
Renewable Energy, Sustainability and the Environment ,Chemistry ,Scanning electron microscope ,Analytical chemistry ,Energy Engineering and Power Technology ,Electrolyte ,Acceleration voltage ,Secondary electrons ,X-ray photoelectron spectroscopy ,Chemical engineering ,Transmission electron microscopy ,Electrode ,Graphite ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry - Abstract
A new method for observing the outermost surface morphology and the thickness of solid electrolyte interphase (SEI) are presented. Low acceleration voltage in extreme high resolution scanning electron microscopy (XHR-SEM) provides detailed information on the SEI surface morphology due to secondary electron contrast mechanism. Also, XHR-SEM under low acceleration voltage with low energy induced ion etching in x-ray photoelectron spectroscopy (XPS) studies provides valuable information on the SEI layer thickness. More detailed properties of the SEI layer were investigated by transmission electron microscopy (TEM).
- Published
- 2014
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