Cross-sectional SEM-EDX analysis of psudo supercapacitor
A type of secondary battery, an energy storage/supply device that utilizes an ion adsorption/desorption layer that occurs at the interface between an electrode and an electrolyte.
Pros: Long life, short charging time Cons: Low energy density
The figure below shows a research example of using MnO2 in the electrode layer for the purpose of improving energy density and also improving electrical conductivity by incorporating Ultra-long single-walled carbon nanotubes (SWCNTs) in the layer (cross-section preparation and SEM-EDX analysis carried out by the SEM department)
Cross-sectional SEM-EDX analysis confirmed the details of the electrode structure and SWCNT connecting MnO2.
W. Gong et al., Journal of Power Sources 479 (2020) 228795