Battery research: visualisation of aging processes operando

‘A lot happens at the interfaces between the anode, separator and cathode while a battery is charging or discharging’

02-May-2025 - Lithium button cells with electrodes made of nickel-manganese-cobalt oxides (NMC) are very powerful. Unfortunately, their capacity decreases over time. Now, for the first time, a team has used a non-destructive method to observe how the elemental composition of the individual layers in a button ...

“Multi-spectra glasses” for scanning electron microscopy

30-Sep-2014 - The scanning electron microscope is not only used for precisely surveying the surface topology of samples, but also for determining their chemical compositions. This is done by exciting the atoms to fluoresce under irradiation by an electron beam while scanning the sample. This secondary emission ...