Ilia Tertov

mr.tertov@gmail.com

Ilia
Tertov

• PhD

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Thématique(s)

• Cristallochimie et recherche de nouveaux matériaux inorganiques pour l’énergie

Descriptif des activités de recherche

My PhD project is: In situ synthesis of important electrode materials for Li-ion batteries: Li(Ni,Mn)2O4-? spinels. It is in the frame of Marie Sk?odowska-Curie InnovaXN project (# 847439), and also with collaboration between Institute Laue-Langevin (ILL), LRCS, ICMCB and Umicore Belgium.
Our main purpose is to establish close relationships between stoichiometry, morphology, structure and electrochemical properties of fully characterized positive electrode powders for Li-Ion batteries. An exhaustive approach (precursors, thermal treatments under various pO2, substitution (with Fe, Mg)) will be used to tune the synthesis of high-performance Li(Ni,Mn)2O4-? spinels.
Phase equilibria during synthesis will be explored in situ using T-controlled X-Ray or Neutron diffraction under various atmospheres and with different sintering additives, using the D20 diffractometer @ ILL for instance. Neutron diffraction is essential to characterize cation stoichiometry and ordering (Ni and Mn) and oxygen vacancies.
Electrochemical studies will be performed on laboratory and industry-like cells (?18650? cylindrical format) to understand what governs the voltage-composition profiles, the reversibility, the contributions of Ni or Mn.

Parcours

Masters degree in chemistry, Moscow State University, Department of Chemistry under supervision of E.V. Antipov

Compétences

http://lrcs-typo3.vh.u-picardie.fr/ Hydrothermal, solid-state and sol-gel methods of synthesis, X-ray and Neutron diffraction, BVEL calculations, Galvanostatic charge-discharge, Cyclic voltammetry, EC-lab BioLogic Matplotlib library for Python, OriginLab, Fullprof, Jana2006, VESTA.

Projets en cours

Marie Sk?odowska-Curie InnovaXN project (# 847439)

Phase equilibrium during the synthesis of LiNi0.46Mn1.54O4: comprehensive X-ray & neutron powder diffraction study?

Ilia Tertov, François Fauth, Emmanuelle Suard, Thomas Hansen,
François Weill, Pierre-Etienne Cabelguen, Christian Masquelier, Laurence Croguennec

Journal of Materials Chemistry A,

2025

Comprehensive study of Mn/Ni ordering in LiNi0.5-xMn1.5+xO4 using neutron powder diffraction and scanning transmission electron microscopy

Ilia Tertov, Dmitry Chezganov, Emmanuelle Suard, Mylène Hendrickx, Thomas Hansen, François Fauth, François Weill, Pierre-Etienne Cabelguen, Christian Masquelier, Laurence Croguennec

Energy Storage Materials,

2025

Impact of Mn/Ni and Li/(Mn+Ni) ratios on phase equilibrium and electrochemical performance of the high voltage spinel LiNi0.5Mn1.5O4

Ilia Tertov, HunHo Kwak, Emmanuelle Suard, Pierre-Etienne Cabelguen, Shinichi Kumakura, François Fauth, Thomas Hansen, Christian Masquelier, Laurence Croguennec

Journal of Power Sources,

2024

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Publications

Comprehensive study of Mn/Ni ordering in LiNi0.5-xMn1.5+xO4 using neutron powder diffraction and scanning transmission electron microscopy

Impact of Mn/Ni and Li/(Mn+Ni) ratios on phase equilibrium and electrochemical performance of the high voltage spinel LiNi0.5Mn1.5O4

Phase equilibrium during the synthesis of LiNi0.46Mn1.54O4: comprehensive X-ray & neutron powder diffraction study†