Laboratoire de Physique des Interfaces et des Couches Minces

CNRS - École polytechnique - Institut Polytechnique de Paris

Fabrication of Lithium-Ion batteries

Written by : Ileana Florea

lenuta-ileana.florea@polytechnique.edu

People Involved : Mariam Ezzedine, Fatme Jardali, Ileana Florea, Costel-Sorin Cojocaru

Part of our research activities focuses on the fabrication of lithium-ion batteries. We have established a novel method for the fabrication of both anode and cathode electrodes based on a bottom-up hierarchical nano-structuration approach. Over more than two decades, we have developed strong expertise in: i) Metallic (alloy) thin film deposition using a home-made evaporation system under ultra-high vacuum (10-10 mbar), ii) Single, double and triple-wall carbon nanotubes synthesis on various substrates, and using different catalysts, via a double hot filament chemical-vapor deposition reactor, iii) Active material deposition by electrodeposition, chemical vapor deposition, and physical vapor deposition methods, and iv) Battery (coin cell)  assembly and electrochemical performance measurements.

 

Assembled coin cell with a zoom on one of the electrodes showing an SEM image of the active material deposited on the vertically aligned carbon nanotubes