The aim of this research is to develop a key technology that overcomes the challenges of carbon–sulfur composite cathodes for high-performance all-solid-state energy storage devices. To balance cost-effectiveness with outstanding battery performance for real-world applications, we are pursuing three key approaches:

• Production of porous carbon from abundant, low-cost, and underutilized woody resources (lignin)
• Synthesis of novel sulfides for compositing with sulfur and porous carbon
• Development of degradation mitigation techniques by controlling carbon-sulfur composite structures

Through these efforts, we aim to realize a new generation of high-performance all-solid-state lithium–sulfur batteries, paving the way toward sustainable and practical energy solutions.

Project Members