Additive manufacturing of functional ceramics for solid state batteries

The rapid expansion of portable electronics, sensors, and Internet of Things (IoT) devices is creating a strong demand for energy storage systems that are compact, versatile, and capable of operating under diverse conditions. Solid-state batteries represent a promising solution, as the use of inorganic electrolytes and electrodes enables higher energy density, long-term stability, and reliable performance in harsh environments, including elevated temperatures. However, most current solid-state cells are still produced in simple planar designs, which limits their integration into devices requiring unconventional geometries or multifunctional architectures.

This PhD project will address these limitations by developing advanced 3D printing processes for functional ceramic materials to fabricate new generations of solid-state batteries. The candidate will focus on stereolithography printing and post-processing of state-of-the-art ceramic electrolytes, with particular emphasis on controlling microstructure, densification, and functional properties such as ionic conductivity over the range from room temperature up to 120 °C.

The research will include the formulation of printable ceramic resins, optimization of printing and sintering protocols, and the design of tailored three-dimensional cell architectures. The printed electrolytes will be integrated with ceramic composite cathodes and metallic anodes, enabling the fabrication of complete solid-state devices.

The ultimate goal is to demonstrate and test a full battery with a customized 3D geometry, able to deliver the required performance for IoT integration and to ensure robust operation in environments where conventional battery technologies are unsuitable, such as high-temperature applications.This position offers a unique opportunity to work at the interface of materials science and electrochemistry. The candidate will gain advanced skills in ceramic processing, 3D printing, and electrochemical characterization, contributing to the development of innovative solid-state energy storage technologies with strong academic and industrial impact.

Academic background (required):

• Master’s degree (or equivalent) in Materials Science and Engineering, Ceramics, Chemistry, Chemical Engineering, Physics, or related disciplines.

Technical skills (desired):

• Knowledge of ceramic processing;
• Experience with additive manufacturing
• Background in electrochemistry (ionic transport, impedance spectroscopy, battery testing).
• Familiarity with formulation of slurries, inks, or resins for functional materials.
• Proficiency in materials characterization techniques (XRD, SEM, etc.).
• Interest in energy storage technologies.

Soft skills (required or highly valued):

• Excellent command of English, both written and spoken, for scientific communication.
• Strong team-working skills and ability to collaborate in an interdisciplinary and international environment.
• Ability to present and discuss research results clearly, both in oral and written formats.
• Problem-solving mindset
• Motivation and curiosity.

Efficient energy storage and clean power generation are key to the energy transition.

ATLAB group develops solid-state technologies, mainly All-Solid-State Batteries (ASSBs) and Solid Oxide Cells (SOCs). ASSBs, seen as the safest and high energy density alternative to lithium-ion batteries, replacing toxic, flammable liquid electrolytes with stable solid ones. ATLAB is advancing its own ASSB technology via non-conventional manufacturing such as 3D printing or ultra-fast sintering.

SOCs are central for hydrogen and synthetic fuels as future energy vectors: Solid Oxide Electrolysis Cells (SOECs) store renewable energy as H₂, which can be used directly, converted to fuels with CO₂, or employed in Solid Oxide Fuel Cells (SOFCs) for clean power generation. ATLAB is developing SOC technology with advanced manufacturing while extending SOECs to co-electrolysis. With 20+ years’ expertise, ATLAB covers materials, characterization, and cell testing.