Development of Mass Production Technology for Sulfide-Based Solid Electrolytes adopted by NEDO Green Innovation Fund - Contributing to the material transition toward the realization of an electric power society -

As global warming and resource-related problems are becoming increasingly serious, it is necessary to build a carbon-neutral and recycling-oriented society. Against this backdrop, storage battery markets, especially those for large batteries such as electric vehicle (EV) batteries and stationary batteries, are expected to expand. The technologies for all-solid-state batteries are expected to be put into practical use and spread widely, which will accelerate electrification and decarbonization (promotion of EVs) and satisfy performance needs such as safety, high capacity, and rapid charging mainly in the automobile industry.

In the Project, Idemitsu aims to establish a mass-production technologies for sulfide-based solid electrolytes for all-solid-state batteries. Specifically, following a small-scale demonstration facility that started operating in November last year, Idemitsu will construct a large-scale pilot system for mass production at our Chiba Complex, to check and verify quality, manufacturing cost, mass-production capacity, and the like.

Through the project, Idemitsu will accelerate the establishment of mass-production technology for solid electrolyte materials, based on our own raw materials and patents for materials and manufacturing technologies, which should contribute to the early launch of the all-solid-state battery market. Moreover, to further expand the all-solid-state battery market for the realization of an electric power society, Idemitsu will expand and advance business areas beyond solid electrolytes to adjacent areas (for providing values such as the further development of next-generation battery materials and recycling).

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【Location】

・NEDO Green Innovation Fund Project Special Site

https://green-innovation.nedo.go.jp/

・NEDO news release regarding this matter

2022年4月19日付
https://www.nedo.go.jp/news/press/AA5_101535.html

・Releases related to our Green Innovation Fund project selection projects

As of April 19, 2022
"Efforts to develop the world's first 100,000 KL annual production ATJ commercial machine"
https://www.idemitsu.com/jp/news/2022/220419_2.html

As of January 7, 2022
"Development of ammonia production technology at room temperature and pressure"
https://www.idemitsu.com/jp/news/2021/220107.html