Lithium-6 buildup may fingerprint lithium-ion battery degradation

Executive Briefing & Key Highlights

The service life of lithium-ion batteries is limited by complex aging processes, the causes of which are often difficult to distinguish from one another. Researchers at the Federal Institute for Materials Research and Testing (BAM) have now shown that the distribution of two lithium isotopes within cells acts like a fingerprint directly linked to degradation processes. This correlation opens new p