Christian Masquelier joined Université de Picardie Jules Verne, Amiens, France, as a Full Professor of Chemistry. He has been working for 30 years on the crystal chemistry of sodium ion conductors and positive electrode materials for Li-ion and Na-ion batteries, in particular on operando X-ray or neutron diffraction of phosphate-based positive electrodes. He is the co-author of ~170 publications and 18 international patents in this field and is a Senior Member of the Institut Universitaire de France. He is presently Co-Director of the ALISTORE European Research Institute, head of MESC+ “Materials for Energy Storage and Conversion”, an ERAMUS MUNDUS European Joint Master Degree and Coordinator of the European Marie Curie PhD-COFUND project DESTINY (A project of 50 PhD thesis in Europe…).