Better Understanding, Lasting Impact, Scientific Progress
Bulk electronic conductivity of NMC is orders of magnitude larger than previously reported. It's because contact resistances were not properly excluded from measurements. We also find a significant carbon-related impedance component in porous electrodes, as resistive as the charge-transfer resistance but at an even lower frequency.
In this video guide, we demonstrate how to assemble a 3-electrode coin cell featuring an in-stack reference electrode.
We explain why conventional GITT (Galvanostatic Intermittent Titration Technique) measurements do not work as intended.
Our work unraveling the strange phase separation in single-phase lithium-intercalating layered oxides appears in Nature Materials. We also reveal that most battery particles are reaction-limited rather than diffusion-limited.
We answer frequently asked questions about our paper "Fictitious Phase Separation in Li Layered Oxides Driven by Electro-Autocatalysis."
How does diffusion-limitation and reaction-limitation produce composition inhomogeneity in a multi-particle electrochemical system?