Understanding aging mechanisms in Li batteries through in-situ and ex-situ nuclear magnetic resonance

Summary

This technical report investigates the degradation of lithium-ion batteries, focusing on aging mechanisms and cycling performance. The core problem identified is metal dissolution due to material incompatibilities, which significantly harms battery lifespan. The approach involved developing advanced in-situ NMR techniques for coin and pouch cells, alongside metal spiking experiments and analytical methods like XRF and XPS, to understand these mechanisms. The research findings confirm that metal dissolution is a widespread and detrimental issue in various battery chemistries.

Key Facts

Source Document

https://example-government.gov/policy-document-link