Olivier RACCURT was participate to the International Operando Battery Days (Grenoble, France, 16-18 May 2022) and present recent results on the internal parameter of cells during operando measurement using smart sensor developed in INSABAT project. This conference was organized by Claire Villevieille (LEPMI, CNRS UMR n° 5279) & Sandrine Lyonnard (CEA IRIG) brought together the international community in the field of operando characterisation of batteries.