A look back to the early days of the invention of FEASIBLE’s underlying ultrasound technology
Acoustic technique that measures physical changes could simplify battery tests.
Researchers in the US have shown that ultrasound echoes can indicate density changes to provide a simple and non-invasive method for measuring charge within any battery.
Batteries are typically made up of metal layers but these layers, and their chemistries, vary with battery type. Each exhibits unique cycling and charging behaviour, so different batteries are assessed in different ways. Expensive equipment, like synchrotron light sources, can provide fine physical insights into a battery’s state. But these techniques aren’t easily accessible to all researchers.