3D investigation by X-ray Nano Holo-Tomography of transition metal precursors used for the synthesis of Li-rich positive electrode materials

We would like to perform X-ray nano-Hollography Tomography to characterize the microstructure of the oxide precursors used to synthesize Li-rich layered oxide positive electrode materials. The oxides show secondary particles being about 10 µm in average with primary particles smaller than 40 nm (spatial resolution) for primary particles. The lithiated layered oxides are also characterized by secondary particles being about 10 µm in diameter, with primary particles up to 200 nm in diameter. The goal is to visualize the overall porosity of the spherical aggregates. They will be put in a resin that will be cut with a laser to get cylinders of approximately 100 µm high and 30-40 µm in diameter. Those will be put on a carbon pin. This preparation will allow to have enough particles cut to make a statistical analysis of the different oxide samples.