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Offre de Thèse LRCS - Amiens

Updated : 2019.05.21

New lamellar materials as negative electrodes for Li, Na & K ions batteries

Silicon is the key anode material for Li-ion and possibly sodium batteries with theoretical capacities of 3590 mAh / g for Li15Si4 and 954 mAh / g for NaSi. Nevertheless, there are well-known locks such as the volume expansion (310% during the insertion of Li) or the low electronic conductivity resulting from limited kinetics and insertion of Na. In order to respond to these limitations, we have recently explored Si-based structures with a two-dimensional structure, the siloxenes, to direct the reaction with alkalis (Li, Na, K) to a topotactic insertion mechanism, less penalizing in terms of the integrity of the electrode and beneficial for the cyclability. It will be expanded to Sn, Ge and mixte 2D materials. The insertion/deinsertion mechanism will be deeply studied.

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Offre de Thèse LRCS - Amiens

Updated : 2019.05.14

Study of local structural properties in primary & secondary particles of LiMn1.5Ni0.5O4 by advanced TEM

We propose in this project to use the ASTAR device (Figure 1a) installed in our TEM, to study the local crystalline structure (ordered vs. disordered phases and impurities of LixNi1-x0) of primary particles (impact of morphology and faceting) and secondary particles (grain boundaries) of LiMn1.5Ni0.5O4 spinel material.

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PhD Thesis Offer LRCS - Amiens

Updated : 2019.05.06

Fundamental study of interfaces in all solid state batteries by environmental scanning electron microcopy

The PhD candidate will have to answer problems related to the interfaces in all solid state batteries. The first studied systems will be composed of oxide or sulfur (argyrodite, LISCON, …) as solid electrolyte, carbon (or metallic anode) and LiCoO2 (or LiMn2O4, LiNixCoyMn1-x-yO2) as electrodes.

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Ingénieur de Recherche BAP B LRCS - Amiens

Updated : 2019.05.06

Synthèse de Matériaux

L’Université de Picardie Jules Verne recrute un Ingénieur de Recherche BAP B (Synthèse de Matériaux) en Contrat à Durée Déterminée, au Laboratoire de Réactivité et Chimie des Solides (LRCS, UMR CNRS 7314) à partir de Septembre 2019.

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Postdoc LRCS Amiens

Updated : 2018.09.03

OPERANDO investigation of Battery Materials

One LRCS-funded postdoctoral research position is available to carry out crystallography work on
cathode materials for advanced batteries, within the LRCS Laboratory in Université de Picardie Jules
Verne in Amiens, France. The work will be conducted under the scientific supervision and responsibility
of Assoc. Prof. Jean-Noël CHOTARD and Prof. Christian MASQUELIER.

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