A technique to guide the development of faster and longer lasting next-generation batteries

https://techxplore.com/news/2022-08-technique-faster-longer-next-generation-batteries.html

"low-cost lab-based optical microscopy... Nb14W3O44... fastest charging anode materials to-date. Visible light is sent into the battery through a small glass window, allowing the researchers to watch the dynamic process within the active particles, in real time, under realistic non-equilibrium conditions. This revealed front-like lithium-concentration gradients moving through the individual active particles, resulting in internal strain which caused some particles to fracture"