Lukas Seidl

TL;DR: In this paper, the phase transitions of a battery electrode upon ion-intercalation are visualised using STM on the atomic scale for the first time, and the local diffusion rates of the intercalated species inside the electrode were determined, a unique approach for determining kinetic effects in batteries on an atomic scale.

TL;DR: In this paper, the rotating disc electrode (RDE) technique was revisited in order to develop a detailed testing protocol leading to comparable results between different laboratories, and the RDE results were validated by comparison with data measured both in proton exchange membrane single cells and via the relatively new floating electrode technique.

TL;DR: The SEI-formation on graphitic electrodes operated as an Li(+)-ion battery anode in a standard 1 M LiPF6 EC/DMC electrolyte has been studied in situ by EC-STM, and it was shown that above 1.0 V vs. Li/Li(+) the SEi-formation is still reversible, since the molecular structure of the solvent molecules remains intact during an initial reduction step.

TL;DR: In this article , a detailed postmortem study is presented, comparing pouch cells with single-crystal versus poly-crystalline LiNi0.60 Co 0.20 O2 (NCM622) cathodes after 1375 dis-/charge cycles against graphite anodes.