Scaling up high-energy-density sulfidic solid-state batteries: A lab-to-pilot perspective

Recent years have seen monumental and exciting developments in the field of all-solid-state batteries (ASSBs). Despite its promises, they still face a multitude of technical hurdles before commercialization can be achieved. Among these challenges, none are more daunting than the ability for scale-up prototyping, specifically, enabling technology transition from the laboratory to the pilot scale. A vast majority of ASSB reports to date are still limited to form factors impractical for actual device operation. Here, we pro-vide a perspective on a wide range of scalability challenges and considerations for ASSBs, including solid electrolyte synthesis, dry electrode and separator processing, cell assembly, and stack pressure considerations at the module level. We layout baseline proto-cols for ASSB fabrication and evaluation using pouch-cell-type form factors as a baseline. Finally, we discuss ways to bridge the development gap between university-level research and industry-scale production through partnerships with national laboratories.

Automated summary

Significant progress has been made in the field of all-solid-state batteries (ASSBs) in recent years, but there are still many technical challenges to overcome before commercialization. The key challenge lies in transitioning from laboratory-scale to pilot-scale production. Current research is often limited to form factors that are impractical for actual device operation. This article provides a perspective on the scalability challenges and considerations for ASSBs, and offers baseline fabrication and evaluation protocols. It also discusses the importance of bridging the development gap between university-level research and industry-scale production through collaboration with national laboratories.