As battery technologies continue to evolve, research and industry are increasingly looking beyond traditional electrical parameters such as voltage and current. The expert talk “More than Voltage and Current – What We Can Learn from Neglected Battery Cell Measures” explores how additional battery cell measurements can provide valuable insights into performance, aging, safety, and lifetime optimization.

The session brings together experts from industry and applied research, including Caspar Spinnen from CATL and Hannes Fiedler from Fraunhofer IKTS. Together, they will discuss battery cell “breathing” phenomena, force measurements and their relevance, as well as the role of digitalized test centers and data pipelines in modern battery research.

Participants will gain insights into advanced testing methods, the influence of environmental and operational conditions on battery behavior, and how data-driven approaches can support the development of more durable and efficient battery systems. By connecting industrial practice with applied research, this Expert Talk offers a concise overview of emerging trends and innovations in battery diagnostics and analysis.

Our speakers:

Caspar Spinnen is Lead Corporate Communications and Public Relations Manager at CATL, one of the world’s leading battery technology companies. He is responsible for international communications, strategic media positioning, and technology-focused storytelling, translating complex industrial and technological topics into clear and accessible communication. Before joining CATL, he worked in the agency and e-scooter sectors and was responsible for political communication for the Green parliamentary group in the Berlin House of Representatives.

Hannes Fiedler is Group Leader for Industrial Data Technologies at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in Arnstadt. His work focuses on data modeling, aggregation, processing, and visualization for data-driven industrial applications. Together with CATL Germany, he works on battery lifetime research in a joint test center, where batteries are analyzed under varying environmental and operational conditions using advanced digitalized testing systems.