Yuanci Zhang has defended her thesis on electrochemical energy storage

On March 15th 2019, Yuanci Zhang has defended her thesis. Awarded by the University of Bordeaux, her work was supervised by IMS BordeauxSPI Bordeaux , and IRT Saint Exupéry.
The high quality and the relevance of Yuanci’s thesis contributed to get significant results as a part of Celia project. The jury highlights the excellence of her thesis work and her impressive pedagogy.


“Performance and ageing quantification of electrochemical energy storage elements for aeronautical usage”

About his thesis

In a context of progress in the storage of energy in electrochemical form in transport, especially in the aeronautics, taking into account the performance, robustness, reliability and lifespan of the electrochemical energy storage elements are essential from the design and sizing phases. These aspects are investigated in this thesis for the more electrical aircraft. Nine technologies are studied: Lithium-ion batteries (NMC, NCA, LFP, LTO), Lithium-Sulfur (Li-S), Supercapacitors and Lithium-ion capacitors.

The first part of this manuscript is dedicated to the performance quantification of the different electrochemical energy storage elements in aeronautical environment [-20°C, 55°C] and usage. An efficient and accurate electro-thermal model is developed and validated.

The second part is devoted to the calendar and power cycling ageings as well as to the presentation of abuse testing results. A State Of Health (SOH) estimation based on incremental capacity analysis method is proposed.

Finally, the robustness of the storage elements during accelerated ageing tests with a specific profile for the aeronautical usage is evaluated. The ageing models and SOH estimation methods proposed in the previous sections are used here to evaluate the impact of temperature on the degradation rate and to estimate the SOH of the cells with this aeronautical profile.

CELIA Project

Characterization and modeling of aeronautical mature cells towards other applications (ground and automotive). Evaluation of new electrochemical solutions.


Christophe FORGEZRapporterProfessor / Compiègne Technological University, LEC
Pascal VENETRapporterProfessor / Lyon 1 University, Ampère
Corinne ALONSOExaminerProfessor / Toulouse III Paul Sabatier University, LAAS
Delphine RIUExaminerProfessor / Grenoble INPG2Elab
Loïc BOULONExaminerProfessor / Québec University, Trois-Rivières, IRH
Fabio COCCETTIExaminerHead of Components Modeling and Reliability Competence Centre / IRT Saint Exupéry
Olivier BRIATCo-thesis directorLecturer (HDR) / Bordeaux UniversityIMS
Jean-Michel VINASSAThesis directorDirector / IMS
  • Efficient state of health estimation of Li-ion battery under several ageing types for aeronautic applications – Y. Zhang, O. Briat, J.Y. Delatege, C. Martin, N. Chadourne, J. M. Vinassa – Microelectronics Reliability, vol.88-90, pp.1231-1235 – 2018 – DOI
  • Characterization of external pressure effects on lithium-ion pouch cell – Y. Zhang, O. Briat, J.Y. Delatege, C. Martin, G. Gager, J. M. Vinassa – IEEE – ICIT 2018 (19th International Conference on Industrial Technology), pp.2055-2059 – Lyon, France – DOI
  • Performance quantification of latest generation Li-ion batteries in wide temperature range– Y. Zhang, O. Briat, J.Y. Delatege, C. Martin, G. Gager, J. M. Vinassa – IECON 2017 (43th Annual Conference of the IEEE Industrial Electronics Society) – Beijing, China – DOI
Yuanci Zhang has defended her thesis on electrochemical energy storage
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