Work

Electron Paramagnetic Resonance in Rechargeable Battery Science: A Review

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide As the demand for higher energy density and improved safety in battery energy systems continues to grow, gaining a more detailed understanding of the underlying microscopic mechanisms has become critical. However, conventional characterization techniques often fall short of fully elucidating complex battery processes. Electron paramagnetic resonance (EPR), by detecting unpaired electrons during battery charge–discharge processes, offers a powerful tool for probing these microscopic reactions. In this Review, we first provide a brief background on the importance of EPR in battery research, followed by the fundamental principles of this technique, and then discuss its recent applications in battery systems from three perspectives: the cathode, the electrolyte, and the anode. Furthermore, we explore how EPR, in combination with advanced complementary characterization methods, can be employed to investigate battery reaction mechanisms in greater depth. Finally, we summarize the current challenges facing EPR in the context of rechargeable battery science and outline potential directions for future advancements.

Source: ACS electrochemistry.

DOI: 10.1021/acselectrochem.5c00371

Authors: Wang Hu, Jinyang Li, Shuai Chen, Haiting Yu, Susana Suttor, Katarina Cicvarić, Aliaksandr S. Bandarenka

Institutions: Technical University of Munich, BMW (Germany)

Language: English

Topic: Advancements in Battery Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Deutscher Akademischer Austauschdienst France, Deutsche Forschungsgemeinschaft, China Scholarship Council, Technische Universität München