R&D Strategy Direction in Solid Electrolytes for Solid-state Batteries by Analyzing Patent Indexes and National R&D Projects

This study analyzed the patent indicators, technology market, and concentration related to the solid electrolyte technology and compared them with national R&D project outcomes. Solid electrolytes, a core component of secondary batteries, are among the 38 future-leading technologies identified by national R&D initiatives. By examining patent indicators alongside trends in R&D projects, this study aimed to provide insights into the direction of national R&D strategies for the solid electrolyte technology. The patent analysis revealed that Korea’s technology and market indexes of patents in this field are comparatively lower than those of leading nations, whereas the patent concentration index suggested moderate competition within the market. An analysis of the national R&D projects indicated that the Korean government primarily supports basic and developmental research in this sector. Thus, we recommend an expanded focus on both basic and applied research in solid electrolytes to enhance the country’s industrial competitiveness.