FREN
courbe en fond

Former staff and alumni


Ana Cristina Martinez Maciel

Ana Cristina
Martinez Maciel

  • PhD student

Main Research Activities

Industrial PhD (LRCS – Renault, December 2017–). Project: “Gas generation inside the Li-ion batteries: Comprehension of mechanisms and proposition of solutions”. Advisor: Prof. Stéphane LARUELLE. Li-ion batteries are present in almost every electric vehicle. During their use, the liquid electrolyte degrades over time and forms gas. This gas is not only penalizing for the performance of the battery (increase of the internal resistance...), but it also induces mechanical stresses at the level of the modules, leading to their damage. In this same context, this thesis work will allow to study, at first, the physicochemical mechanisms leading to the gas evolution (for the currently used chemistries and those under development); and secondly, it will involve the proposition of approaches to limit or eliminate the gas, especially at the level of electrolyte additives.

Academic Training

  • Master Erasmus Mundus: Materials for Energy Storage and Conversion (2015–2017).

S1: Université Paul Sabatier (Toulouse, France)

S2: Warsaw University of Technology (Warsaw, Poland)

S3: Universidad de Córdoba (Cordoba, Spain)

S4: Université de Picardie Jules Verne (Amiens, France). Project: “Grafting of organic entities in positive electrode materials to improve its performance”. Advisor: Matthieu BECUWE (LRCS).

  • Nanotechnology engineer – (Universidad Autónoma de Querétaro, Mexico; 2010–2015). Final project: “Electrocatalytic study of the enzyme laccase of Trametes versicolor, immobilized in tridimensional carbon structures for its application in microfluidic cells”.

Professional skills

Nanotechnology systems, surface analysis and modification, pH titration, electrolyte additives

Running Projects

CIFRE Renault–LRCS / 2017–2020 / ANRT


Additive manufacturing of LiNi1/3Mn1/3Co1/3O2 battery electrode material via vat photopolymerization precursor approach

Ana C. Martinez, Alexis Maurel, Ana P. Aranzola, Sylvie Grugeon, Stéphane Panier, Loic Dupont, Jose A. Hernandez-Viezcas, Bhargavi Mummareddy, Beth L. Armstrong, Pedro Cortes, Sreeprasad T. Sreenivasan & Eric MacDonald

Scientific Reports, 2022

Chemical reactivity of lithium difluorophosphate as electrolyte additive in LiNi0.6Co0.2Mn0.2O2/graphite cells

AC. Martinez, S. Rigaud, S. Grugeon, P. Tran-Van, M. Armand, D. Cailleu, S. Pilard, S. Laruelle

Electrochimica Acta, 2022

Surface modification of LiFePO4 nanoparticles through an organic/inorganic hybrid approach and its impact on electrochemical properties

Ana Cristina Martinez, Walid Dachraoui, Rajesh Murugesan, Emmanuel Baudrin, Arnaud Demortière, Matthieu Becuwe

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2022

Mass Spectrometry Analysis of NMC622/Graphite Li-Ion Cells Electrolyte Degradation Products after Storage and Cycling

S. Rigaud, AC. Martinez, T. Lombard, S. Grugeon, P. Tran-Van, S. Pilard, S. Laruelle

Journal of The Electrochemical Society, 2022

Toward High Resolution 3D Printing of Shape-Conformable Batteries via Vat Photopolymerization: Review and Perspective

Alexis Maurel; Ana C. Martinez; Sylvie Grugeon; Stephane Panier; Loic Dupont; Pedro Cortes; Cameroun G. Sherrard; Ian Small; Sreeprasad T. Sreenivasan; Eric Macdonald

IEEE Access, 2021

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