ECTS
2 crédits
Composante
Collège Sciences et Technologies pour l’Energie et l’Environnement (STEE)
Volume horaire
24h
Description
Lab work. Li-ion battery assembly in the lab. Cycling test and electrochemical performances. Chemical and morphological characterization of the electrodes after (or during) cycling to understand battery operation.
1. Li-ion battery assembly in a glovebox in controlled argon atmosphere to avoid any contact with air due to the chemical reactivity of components. Assembling electrodes and filling the battery with electrolyte.
2. Electrochemical cycling of the battery. Definition of battery performances. Interpretation of the cycling curves, link with the internal mechanisms of the battery during cycling.
3. Chemical characterization of electrodes. To understand the (electro)chemical mechanisms occurring in the battery during cycling, two physico-chemical surface characterization techniques will be used:
a) X-ray Photoelectron Spectroscopy (XPS) giving access to the chemical composition of electrodes surface and electrode/electrolyte interphases (passivation layers).
b) Auger Electron Spectroscopy (AES) giving access to nanoscale distribution of elements at the surface (elemental mapping: scanning Auger microscopy).
4. Internal morphological characterization of batteries. X-Ray Tomography and Radiography will be used to investigate morphological changes undergone by the battery after (or during) cycling. Volume changes of electrodes, appearance of cracks or gas bubbles, voids, … , will be detected by these techniques.
Objectifs
At the end of this course, you will be able to :
- Assemble a Li-ion battery in controlled atmosphere environment,
- Perform the electrochemical cycling of a battery and characterize its performances,
- Explain the physico-chemical and morphological changes in the battery: beneficial or detrimental (failure/aging mechanisms),
- Analyse and present experimental data in a short report.
Heures d'enseignement
- TPTravaux Pratique24h
Pré-requis obligatoires
Basic knowledge of chemistry of materials, basic principles of electrochemistry.
Contrôle des connaissances
First session : 100% Practical Work (TP) marks.
Second session : 100% written final exam.
Informations complémentaires
Follow-up courses : M2 : Materials for energy storage and conversion, Surface Chemistry And Interfaces.
Compétences visées
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UE Materials chemistry in the lab | ||
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Block "Advanced and specialised use of digital tools" |
Identify the digital uses and the impact of their evolution on the field(s) concerned by the SGM mention |
Level 1 |
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Independently use advanced digital tools for one or more professions or research sectors in the field |
Level 1 | |
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Block "Development and integration of highly specialized knowledge" |
Mobilise highly specialised knowledge, some of which is at the forefront of knowledge in a field of work or study, as a basis for original thinking |
Level 3 |
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Develop a critical awareness of knowledge in one field and/or at the interface of several fields |
Level 2 | |
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Solve problems to develop new knowledge and procedures and integrate knowledge from different domains. |
Level 3 | |
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Conduct a reflective and distanced analysis taking into account the issues, problems and complexity of a request or situation in order to propose adapted and/or innovative solutions in compliance with changes in regulations |
Level 1 | |
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Block "Specialised communication for knowledge transfer" |
Identify, select and critically analyse a variety of specialist resources to document a topic and synthesise this data for use |
Level 1 |
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Communicate for training or knowledge transfer purposes, orally and in writing, in French and at least one foreign language |
Level 2 | |
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Block "Support for transformation in a professional context" |
Lead a project (design, steering, team coordination, implementation and management, evaluation, dissemination) which may involve multidisciplinary skills in a collaborative framework. |
Level 1 |
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Analyse one’s actions in a Professional situation, to evaluate oneself in order to improve one’s practice in the framework of a quality approach. |
Level 1 | |
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Respect the principles of ethics, deontology and environmental responsibility. |
Level 1 | |
