A signal that appears to show ions moving inside a battery may, in fact, be an illusion caused by an uneven surface. A KAIST research team has identified the origin of this type of artifact, which can lead researchers to misinterpret what is happening inside a battery, and has developed a method...
Source: [Phys.org](https://phys.org/news/2026-09-bumpy-battery-surfaces-masquerade-nanoscale.html)