News

Mitsubishi Materials Corporation ("MMC") has succeeded in developing a new manufacturing technology that excels in mass production of sulfide-based solid electrolytes ("SBSEs"), one of the materials used in all-solid-state batteries for xEV. MMC will continue to improve processes and quality for future commercialization.

SBSEs have high ionic conductivity among solid electrolytes for all-solid-state batteries, and their high input-output characteristics are expected to extend the driving range of automobiles and shorten charging time. For this reason, they are considered as a promising material for all-solid-state batteries for xEV. However, their low mass-producibility and difficulty in handling have been major barriers to their practical application in all-solid-state batteries.
MMC has successfully developed a simple and new manufacturing process to synthesize SBSEs by mixing sulfur-containing raw materials and calcinating them in a furnace. This new process is expected to increase the scale of production, and MMC will proceed with studies toward the commercialization of SBSEs. Currently, we are providing samples of the SBSEs synthesized in the process to specific customers for commercialization evaluation.

MMC Group has set out "Our Commitment" of "For people, society and the earth, circulating resources for a sustainable future." We will continue to contribute to build a prosperous society by providing non-ferrous metal materials and high value-added products.

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Corporate Communications Dept., Strategic Headquarters: +81-3-5252-5206