Honda has revealed its demonstration production line for solid-state battery cells at its R&D center in Japan. The goal is to quickly start testing material specification and manufacturing processes leading up to the launch of Honda's proprietary solid-state battery cells. The development of solid-state batteries powerful enough to run cars will be essential in the long-term adoption of EVs, both hybrid and all-electric. Maybe even the next-generation NSX. The NSX has always been about pushing technological boundaries, and with Honda now announcing that solid-state battery production will begin in January 2025, albeit not for mass applications but for testing and preparation, an electric supercar from Japan is looking all the more likely.