A neutron-based mapping technique has been used to track the movement of lithium ions in real time inside a functioning all-solid-state battery.
Researchers at the Institut Laue-Langevin (ILL) in France discovered unexpected structural complexities, which could inform the design of safer, more efficient solid-state batteries.
The operando neutron powder diffraction technique was used to peer inside the battery interface. Interestingly, the experiment revealed a chaotic structure within the electrode, showing that lithium doesn’t flow through the battery nearly as smoothly as previously thought.







