Toward better batteries: Solid-state battery roadmap 2035+

Recently, Solid-State Battery Roadmap 2035+ was released by Fraunhofer ISI, which supports the German battery research. As part of the accompanying project BEMA II funded by the Federal Ministry of Education and Research (BMBF), the roadmap comprehensively summarizes the current and future developments of solid-state batteries at the material, component, cell and application level, benchmarking with the anticipated developments of Li-Ion Batteries (LIBs) in the time frame of next ten years. This perspective will briefly summarize the main points of the roadmap and make some corresponding discussions.