CEA LETI, a leader in the development and manufacturing of integrated solid-state batteries, is ready for the next step towards innovation in energy storage integration for implantable medical devices. Dive with us into the exciting world of microbatteries! This internship, which could lead to a PhD, offers you the opportunity to participate in the development of a new technological building block: electrodeposition of cathode materials and their integration into micro-devices.

Monitoring certain pathologies remains a challenge due to the power supply requirements of implanted medical devices. A potential solution lies in the development of energy-autonomous sensors through integration of tiny microbatteries. The demand for more efficient and durable battery materials is pivotal for such devices. Conventional electrode materials are typically synthesized via physical vapor deposition (PVD), a process that is both energy-intensive and time-consuming, and that limits the thickness of deposited layers—essential for increasing microbattery capacity. Electrodeposition, on the other hand, offers a novel approach, allowing a wide range of material synthesis and selective deposition on microelectronic substrates under milder conditions. Electrochemical deposition is expected to have a strong leverage effect by increasing the device architecture options and applications fields..

Throughout this internship, you will explore cathode materials for solid-state microbatteries. You will work on the implementation and optimization of oxide (MnO2, FeO2, NiO2) electrodeposition in aqueous solutions at room temperature, using a classic electrochemical experimental setup on samples without patterns and then on micron-sized patterned samples. Your work will involve morphological and structural characterization of the materials (X-ray diffraction, Raman spectroscopy, SEM) as well as electrochemical characterizations (cyclic voltammetry, impedance spectroscopy). By joining our lab, you will benefit from a comprehensive experience, a 360-degree immersion in materials development and integration into devices.

Join us on a training course!

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As a CEA intern, you will have the opportunity to work in a world-class research environment. Our teams are made up of passionate and dedicated professionals, providing a stimulating environment for learning and collaboration. You will have access to state-of-the-art equipment and world-class research resources to support your work.

What do we expect from you?

With a strong foundation in electrochemistry, materials science, or semiconductor physics, you’re eager to delve into the field of all-solid-state batteries. Comfortable with experimental work, you also possess the skills essential for gaining a comprehensive understanding of electrochemical mechanisms.

Still in doubt? We suggest :

• The opportunity to work in a world-renowned scientific research organisation,
• 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 high-quality supervision,
• Real career opportunities at the end of your placement,
• A position in the heart of the Grenoble metropolitan area, easily accessible via the soft mobility encouraged by the CEA,
• An 85% contribution to public transport costs,
• A recognised work-life balance,
• Company restaurants,
• A diversity and inclusion policy.

In line with CEA's commitment to the integration of disabled people, this position is open to all. The CEA offers accommodation and/or organisational opportunities, so come and join us!