Postdoctoral Fellow - "Ionic liquids for high voltage Li-ion batteries"
This project is focused on the conception and development of new electrolytes based on room temperature ionic liquids (RTIL) which will be used in high voltage lithium-ion batteries with potential application in electric vehicles (EV). The RTIL consisting principally of only one cation and anion pair exhibit several advantages when compared to molecular solvents: low to no vapor pressure below 100°C, many possible combinations of ions (known as the designer solvent), high electrochemical stability (up to 5.7 V), non-flammable behaviour, ability to exclude water, high conductivity and high solubility of metal salts. Their electrochemical stability depends on the nature of the cation, which is responsible of oxidation processes, and the nature of the anion which influences the reduction of electrolyte.
In this project, the postdoctoral fellow will:
investigate a development of new electrolytes based on ionic liquids for high voltage lithium-ion batteries,
analyse the evolution of the electrolytes during the cycling,
study the interfacial mechanisms on electrode/electrolyte interfaces,
optimise the performances of new electrolytes by their modifications.
These studies of new electrolytes will be performed by means of classical electrochemical techniques i.e. Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS) as well as by surface analytical techniques i.e. X-ray Photoelectron Spectroscopy (XPS), Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) and Scanning Electron Microscopy (SEM).
The postdoctoral position, for a period of 12 months, will be held in the Institut de Recherche de Chimie Paris, CNRS – Chimie ParisTech (UMR 8247), Paris (group of PCS of. P. Marcus and I2E of M. Cassir) in collaboration with Renault S.A. granting this project.
Prior experience in electrochemistry (batteries) and physical chemistry is required. The experience in lithium batteries, ionic liquids and surface analytical techniques (XPS, TOF-SIMS) will be highly appreciated. The post-doc will be awarded to the successful applicant according to the local conditions and salary scales. For information please e-mail the contact shown below.
Application deadline: 15 December 2014
Approximate starting date: January 2015
To apply send CV and cover letter to: