Personal web page : http://iramis.cea.fr/Pisp/jean-marc.zanotti/
Laboratory link : http://www-llb.cea.fr/
More : http://liten.cea.fr/cea-tech/liten/Pages/Accueil.aspx
This PhD subject proposes an original way to allow the use of "lithium metal polymer" batteries at room temperature. This objective will be achieved by combining three effects:
i) The nanometric confinement of the electrolyte in membranes based on vertically aligned Carbon NanoTubes (VA-CNT),
ii) The use of low molecular weight polymer (here Poly(Ethylene Oxide (PEO))
iii) One-dimensional ionic conduction.
The conduction of the CNT confined Lithium will be driven by two characteristic distances: the pore diameter (1-4 nm) and the total VA-CNT length (from 10 to 500 micrometers). Rational modeling of the transport properties over distances differing by orders of magnitude naturally calls for a multiscale approach.
Therefore, as for its fundamental Science aspect, the primary goal is to develop an experimental multi-scale approach to bridge the broad time and spatial scales (eight orders of magnitude) relevant to the high-mobility-in-tight-1D-spaces we are seeking.
The applied research fold of the study is to prove the validity of the concept.