[Overseas Solid-State Battery: Construction Begins on South Korea's 150 mt Lithium Sulfide Project in Yisu with an Investment of Over 400 Million]

Published: Sep 11, 2025 17:33 (GMT+8)
On September 8, 2025, South Korea's ISU Specialty Chemical commenced construction for the commercial production of lithium sulphide, a key raw material for solid-state battery sulphide electrolytes, with an annual capacity of 150 mt. The project investment amounted to approximately 85.2 billion won (435 million yuan), with a designed capacity of 150 mt per year, expandable to a maximum of 500 mt. The downstream market is expected to include China, Japan, and South Korea.

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