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CNRS

Just Landed

Post-doctorant (H/F): Real-time tracking of chemical cross-talk contamination in Li batteries CNRS in France

Degree Level

Postdoc

Field of study

Chemistry

Funding

Available

Deadline

Dec 2, 2026

Country flag

Country

France

University

CNRS

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Keywords

Chemistry
Chemical Engineering
Materials Science
Spectroscopy
Electrochemistry
Microscopy
Lithium-ion Batteries
Physics

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About this position

This postdoctoral project is centred on real-time, operando and in situ monitoring of chemical cross-talk in lithium-ion batteries. The successful candidate will develop and apply a new coupled spectro-electrochemical technique to characterise how redox species generated at the positive electrode migrate toward the negative electrode and influence its behaviour during battery operation.

The work combines an electrochemical sensor approach with confocal microscopy using Raman and fluorescence. The objective is to enable selective trapping and quantification of species produced at the positive electrode, while simultaneously observing their evolution in functioning Li-ion cells. The project also includes ex situ analysis by XPS and XRF to support the findings obtained on the sensor.

The researcher will work on three connected tasks: improving the electrochemical titration/trapping method, studying how electrode and electrolyte composition affect the phenomenon, and designing optimised spectro-electrochemical cells for simultaneous fluorescence and electrochemical titration measurements. The role is strongly experimental and method-oriented, with a focus on advanced battery diagnostics.

The position is hosted in the Stockage et conversion électrochimiques de l'énergie (ST2E) team at the Institut des Matériaux de Nantes Jean Rouxel (IMN). The laboratory is part of a broader research environment devoted to the design, characterisation and optimisation of advanced materials for energy and other applications. The project is linked to OPINCHARGE, a Horizon Europe collaboration with multiple European research and technology institutes focused on advanced methods for studying solid-liquid interfaces in Li-ion batteries.

The postdoctoral researcher will contribute to publications, international conferences, seminars with OPINCHARGE partners, and new collaborations enabling access to complementary instrumentation.

Funding details

Available

What's required

The advert seeks a highly motivated postdoctoral candidate with skills in analytical chemistry, especially electrochemistry and spectroscopy. Experience relevant to operando/in situ measurements, battery systems, or spectro-electrochemical characterization would be advantageous, as the role involves designing experiments, analysing data, and preparing scientific publications.

How to apply

Apply via the provided Choisir le service public / CNRS job link. Use the online application page to submit the materials requested in the posting and follow the instructions on the advert.

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