The study resembled MRIs of battery cells, providing data on lithium’s chemical changes during charging, discharging, resting, and aging.
The NMR probe (the metal cylinder) alongside a small-scale battery pouch cell (the rectangular device atop the probe) utilized in the Argonne study.
Researchers developed a new method to assess long-term aging in real-world battery cells.
The US Department of Energy’s (DOE) Argonne National Laboratory (ANL) team’s approach relies on nuclear magnetic resonance (NMR), a technique often used in medical imaging.
NMR spectroscopy is a noninvasive technique that uses the magnetic properties of atomic nuclei to analyze chemical environments, providing insights into atomic structures and reactions in battery materials.
According to researchers, this marks the first application of NMR spectroscopy capable of precisely monitoring the chemical changes in commercial pouch battery cells over extended operational periods.
“The application of NMR to batteries has been limited to date. But with our …