25 May 2024
Job Information
- Organisation/Company
CNRS- Department
Institut Charles Gerhardt Montpellier- Research Field
Chemistry
Physics
Technology- Researcher Profile
Recognised Researcher (R2)- Country
France- Application Deadline
14 Jun 2024 - 23:59 (UTC)- Type of Contract
Temporary- Job Status
Full-time- Hours Per Week
35- Offer Starting Date
2 Dec 2024- Is the job funded through the EU Research Framework Programme?
Not funded by an EU programme- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
- Evaluation of the electrochemical behavior of layered oxides with the general formula A(x)MO2, where A is an alkali metal and M is a transition metal.
- Rationalization of the alkali ion exchange phenomena that can occur chemically and/or electrochemically in contact with a liquid electrolyte.
- Identification of a "structuring pillar" phenomenon for certain mixed alkali ion compositions, with a positive effect on electrochemical performance (notably retention capacity).
- Synthesis and physicochemical characterization of layered oxides-
- Evaluation of the electrochemical behavior of layered oxides as a positive electrode material for batteries
- Detailed analysis of the chemical and/or electrochemical ion exchange processes within the electrode material
- Writing of interim reports and scientific articles
- Presentation of the research project results at national and international scientific meetings
Layered transition metal oxides with the general formula A(x)MO2 are recognized for their excellent electrochemical behavior as active materials for the positive electrode in Li-ion, Na-ion, and K-ion batteries. Whether it is a mature technology (Li-ion batteries) or research still under development (Na-ion and K-ion batteries), improving the electrochemical performance of layered oxides is a major challenge. Increasing storage capacity, as well as enhancing capacity retention during electrochemical charge and discharge cycles, are key criteria in the selection of future electrode materials. Solid-state chemistry approaches have shown the benefit of inserting chemical elements into the layered structure that act as structural pillars, sometimes offering better cycling stability. An alternative approach could be to promote in situ mixed layered compositions with alkali elements, based on chemical and/or electrochemical exchanges occurring during battery assembly or the initial electrochemical cycles. The objective of this post-doctoral project is to rationalize these exchanges by leveraging the chemical versatility of layered oxides and incorporating advanced electrochemical analyses such as EQCM or electrochemical dilatometry. This post-doctoral project is funded within the scientific framework of the Electrochemical Energy Storage Network (RS2E, CNRS FR3459) and will take place between the Charles Gerhardt Institute in Montpellier (ICGM, CNRS-UM-ENSCM, UMR5253) and the Interuniversity Research and Materials Engineering Center in Toulouse (CIRIMAT, CNRS-Toulouse INP-UT3 Paul Sabatier, UMR5085).
Requirements
- Research Field
- Chemistry
- Education Level
- PhD or equivalent
- Research Field
- Physics
- Education Level
- PhD or equivalent
- Research Field
- Technology
- Education Level
- PhD or equivalent
- Languages
- FRENCH
- Level
- Basic
- Research Field
- Chemistry
- Years of Research Experience
- 1 - 4
- Research Field
- Physics
- Years of Research Experience
- 1 - 4
- Research Field
- Technology
- Years of Research Experience
- 1 - 4
Additional Information
Eligibility criteria
- Synthesis of positive electrode materials (ceramic method, sol-gel, co-precipitation, solvothermal, etc.)
- Physicochemical characterization (X-ray diffraction, SEM, etc.)
- Assembly of laboratory batteries (electrode formulation, liquid electrolyte preparation, assembly of coin and Swagelok cells)
- Electrochemical analysis (galvanostatic cycling, cyclic voltammetry)
- Operando or in situ analysis
- Advanced electrochemical analysis (EQCM, dilatometry, etc.)
- Website for additional job details
https://emploi.cnrs.fr/Offres/CDD/UMR5253-ROMBER-003/Default.aspx
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Institut Charles Gerhardt Montpellier
- Country
- France
- City
- MONTPELLIER
- Geofield
Where to apply
- Website
https://emploi.cnrs.fr/Candidat/Offre/UMR5253-ROMBER-003/Candidater.aspx
Contact
- City
MONTPELLIER- Website
http://www.icgm.fr
STATUS: EXPIRED