- After the event
Project Manager at CEA
Sophie Mailley received her BS in Materials science from the University of Grenoble in 1991 and a PhD in electrochemistry from the Institute National Polytechnique de Grenoble in 1996. After two years as a postdoctoral fellow at Northern Ireland BioEngineering Center, Sophie Mailley participated to a Training and Mobility researcher program at the British Gas Technology Center at Loughborough (UK), working on new material for SOFC anode. She joined the CEA in 2004 for the development of catalysts for PEMFC. In 2008, she took the lead of the Li-ion safety test and characterisation team. Since 2014, she in charge of European program management at CEA/LITEN on the topics of fuel cell, hydrogen and Li-ion batteries. In 2016 she joined CEA Tech-Regions as Head of European affairs.
She involves on topics related to Li-ion battery, fuel cell, biomass and renewable energies.
Read more about Sophie and her work here.
Abstract: CEA leads MAT4BAT and SPICY European projects. The talk will present results of these projects.3 generation of Li-ion cells were implemented in MAT4BAT, with a focus on electrolytes which will be steadily transformed from Liquid to Gel to All-Solid state electrolytes in order to promote substantial gain in cell lifetime and safety by preventing degradations and hazards and improving energy density with a separator-free cell (all-solid state electrolyte). SPICY is considering the development of new chemistry materials, cell architectures and packaging with the support of understanding and modelling activities. A focus on polyanionic phosphates (based on LiFePO4 properties) for the positive electrode material with the objective to bind metals having higher potential to Fe, allowing an increase of the material potential, and thus a higher energy. Regarding the anode material, SPICY is studying two chemistries. Graphite (SoA) and Silicon. Silicon, as next generation anode material, is appropriate for high energy cell applications but has lower cyclability. Silicon is investigated through new synthesis process methods providing nanoparticles and core-shell structures to improve particle stability. Active and passive components are harmonized for a higher energy density i.e: polyanionic phosphate /graphite up to 165 Wh/kg, and polyanionic/Si up to 190 Wh/kg (PHEV application).