As a CEA intern, you will have the opportunity to work in a world-renowned research environment. Our teams are made up of passionate and dedicated experts, providing a stimulating environment for learning and collaboration. You'll have access to state-of-the-art equipment and first-rate research resources to carry out your missions.

 CEA-Leti provides integrated microstorage solutions, including solid-state microbatteries. Solid-state microbatteries are among the most promising microstorage technologies for applications in fields as diverse as implantable medical devices and the Internet of Things. This work has given rise to a start-up, InjectPower, whose aim is to industrialize microbatteries for implantable medical devices (CEA-Leti - Injectpower, energy for implantable devices (leti-cea.fr)).

Job description:

The physical mechanisms involved in the operation of a microbattery are still poorly understood and modelled. To study these components, CEA has a manufacturing and characterization platform dedicated to lithium components.

The aim of this internship is to develop a physical model to describe battery performance (voltage, power output) according to conditions of use. The proposed methodology involves :

1.       Use the 15,000 batteries per wafer as test vehicles. Measurements taken during battery cycling are recorded in a database.

2.       Code data processing programs based on machine learning and Bayesian inference methods to highlight optimal cycling protocol parameters. This feedback then feeds into the physical model (validation/understanding/exploration).

3.       Iteration with manufacturing and electrical testing of new battery architectures/designs.

For the modeling part, the student will be able to rely on a model describing first-cycle operation (see physical model paper reference). For the database part, a database is under construction and is already fed by electrical tests. A machine learning analysis tool is also under construction to improve the analysis of cycling measurements.

Within the LCRE, you will work with a team of 10 people.

You will add your touch to missions such as :

·       electrical and electrochemical measurements of microbattery performance,

·       database generation,

·       programming (python or other),

·       simulation using physical models,

·       development of physical models.

·        

Subjects can be discussed depending on your school's expectations.

Possibility of pursuing a thesis after the internship.

What do we expect from you?

You are preparing a master degree in solid state physics, semiconductors, complex systems or micro technologies.

You're passionate about scientific and technological research, and have a solid theoretical grounding and knowledge of programming and data science.

Come and join us, develop your skills and acquire new ones!

Still in doubt? We can offer you :

·       The opportunity to work within a world-renowned organization in the field of scientific research,

·       A unique environment dedicated to ambitious projects that address today's major societal challenges,

·       Experience at the cutting edge of innovation, with strong potential for industrial development,

·       Exceptional experimental resources and top-quality supervision,

·       Real career opportunities at the end of your internship

·       A position in the heart of the Grenoble metropolitan area, easily accessible via the soft mobility encouraged by the CEA,

·       85% contribution to public transport costs,

·       A recognized work-life balance,

·       A company restaurant,

·       A diversity and inclusion policy,

·       An active CSE in terms of leisure and extra-professional activities.

All our positions are open to people with disabilities. CEA's Mission Handicap can help you make the necessary adjustments.

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