Personal web page : http://iramis.cea.fr/Pisp/said.yagoubi/
Laboratory link : http://iramis.cea.fr/nimbe/leel/
More : http://iramis.cea.fr/nimbe/lsdrm/
Lithium-ion batteries, launched onto the market in 1991, are nowadays largely present in a large variety of applications. Since that, important progresses were obtained but no major technological breakthrough has been recorded. Envisioned future uses and needs such for electrical vehicles will require the use of new concepts with higher energy density, low manufacturing costs and reduced environmental risks such as auto-inflammation or electrolyte leakage. In order to meet these requirements, the new generation of all-solid-state batteries using a Ceramic–Polymer solid electrolytes, combined with Li metal anodes can provide solutions and satisfy the growing energy needs. The barriers to overcome allowing the development of all-solid-state battery technology consist mainly in the research for new chemically stable and electrochemically efficient solid composite electrolytes (cationic conduction at ambient temperature close to 1mS.cm-1 and large electrochemical window).
A great part of the work in this project will be devoted to the development of solid composite electrolyte materials and to the optimization of the interfaces ceramic/polymer and composite electrolyte/electrode. Combination of multi-scale characterization, electrochemical, structural, spectroscopic and analytical techniques including nuclear microanalysis will deepen the understanding of the Lithium dynamics through structured networks of battery.
Keywords: solid electrolyte, garnet LLZO, polymer, composite LLZO/polymer, all-solid-state battery, interfaces, multi-scale Li+ dynamic characterization, lithium metal and dendrite, electrochemical efficiency, solid-state NMR, X-ray and neutrons diffraction, ion beam analysis.