Researchers show clean solid–electrolyte/electrode interfaces double capacity of solid-state Li batteries Scientists at Tokyo Institute of Technology (Tokyo Tech), Tohoku University, National Institute of Advanced Industrial Science and Technology, and Nippon Institute of Technology, have demonstrated by experiment that a clean electrolyte/electrode interface is key to realizing high-capacity solid-state lithium batteries (SSLBs). Their findings could pave the way for improved battery designs with increased capacity, stability, and safety for both mobile devices and electric vehicles. A paper on their work appears in the journal ACS Applied Materials & Interfaces. Solid-state lithium batteries comprise solid electrodes and a solid electrolyte that exchange lithium (Li) ions during charging and discharging. Their higher energy density and safety make SSLBs very attractive as next-generation sstorage solutions.