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PhD: All Solid-State Lithium-Ion Organic Batteries

Employer
Global Academy Jobs
Location
France
Salary
1,500 EUR
Closing date
Apr 20, 2019

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Job Details

Lithium-ion batteries have enabled the development of portable electronics and electric vehicles, due to the great energy density they are able to store for a reduced weight and volume. The tremendous success of these systems and the development of new applications (renewable energy storage, connected objects, internet of things, ...) require new materials and technologies to meet the demands of cost and environmental friendliness.

The use of transition metals in current batteries is associated to problems of uncontrolled costs, recycling, and environmental acceptability. For this reason, scientific research in this field focuses now on organic Li-ion batteries, for which electroactive materials can be obtained from biomass (so-called biosourced" materials).

The proposed thesis topic is at the crossroads of two new emerging themes : (1) organic batteries, (2) all solid-state batteries (ASSB). ASSB use solid electrolytes, which offer a great advantage in terms of safety. Moreover, solid electrolytes allow overcoming the solubility problem of organic materials in usual solvents of liquid electrolytes.

This PhD thesis will be conducted in close collaboration between two research laboratories of the French Research Network on Electrochemical Storage of Energy (RS2E http://www.energie-rs2e.com/en/page/network-and-its-actors ): IPREM (Institute of Analytical Sciences and Physical Chemistry for Environment and Materials, University of Pau & Pays de l'Adour, https://iprem.univ-pau.fr) and LRCS (Laboratory of Reactivity and Chemistry of Solids, University of Amiens, https://www.lrcs.u-picardie.fr ).

The PhD student will be based mainly in Pau, with regular three-week or one-month experiments campaigns in Amiens. He (she) will learn electrochemistry of solids, elaboration of Li-ion batteries, their electrochemical characterization, and will spent an important part of his research work to study chemical processes taking place at electrode/electrolyte interfaces. Interfaces between electrode materials and electrolytes are indeed the key point for the development of new battery technologies, because they are the place where a large number of limiting phenomena occur (side reactions, impedance increase, etc.), which must be controlled.

The PhD student will benefit from the following characterization tools :
  • Electrochemical characterization methods: battery cycling, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS)
  • Surface and interface characterization methods: X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), time-of-flight secondary ions mass spectrometry (ToF-SIMS).


Duration of the PhD thesis : 3 years
Starts in September 2019
French research agency (ANR) funding (already accepted)
Salary : About 1500 euros net (after social charges).

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Global Academy Jobs works with over 250 universities worldwide to promote academic mobility and international research collaboration. Global problems need international solutions. Our jobs board and emails reach the academics and researchers who can help.

"The globalisation of higher education continues apace, driving in turn the ongoing development of the global knowledge economy, striving for solutions to the world’s problems and educating a next generation of leaders and contributors."

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