Beyond Lithium – Towards Sustainable Energy Storage
The transition to renewable energy requires new battery technologies. At the POLiS (Post Lithium Energy Storage) Cluster of Excellence, researchers develop the scientific foundations of sustainable post-lithium energy storage through interdisciplinary research across chemistry, physics, materials science, engineering and data science.

Growing demand
Why POLiS?
Batteries have become one of the key technologies of the 21st century. They power portable electronics, enable electric mobility and are essential for integrating renewable energy into future power systems. As demand for energy storage continues to grow, tomorrow’s batteries must go beyond the capabilities of today’s lithium-ion technology.
Meeting this challenge requires more than incremental improvements. It calls for entirely new electrochemical concepts, a deeper understanding of fundamental processes and innovative approaches to materials discovery. POLiS addresses these scientific questions to lay the foundations for the next generation of sustainable energy storage.
Research at POLiS

Research Environment
Scientific breakthroughs require more than excellent ideas. POLiS combines cutting-edge research with state-of-the-art facilities, data stewardship, early-career support and a strong culture of collaboration across three partner universities.
Our Spokespersons

Prof. Dr. Helmut Ehrenberg
Karlsruher Institute of Technology (KIT)

Prof. Dr. JĂĽrgen Janek
Justus Liebig University Giessen
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