Japan certifies electrode for mass production solid state battery
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The Japanese government has certified a negative electrode developed by Toyo Kohan for a solid state battery ahead of mass production.
The certification, announced on Dec 25th, is part of the supply chain assurance scheme for batteries from the Ministry of Economy, Trade, and Industry (METI). The current collectors are made at the company’s Kudamatsu Plant in Yamaguchi Prefecture which plans to make at least 3GWh of batteries a year in 2027, indicating a ramp up next year for mass production for electric vehicles built in Japan.
Toyo Kohan started out with a process for rolling iron, but has expanded into production of foils, films and copper-clad laminates for RF applications. The electrode is an iron nickel alloy that is stable in the presence of hydrogen sulfide, and the company has a patent for a solid state electrode co-filed with the world’s largest car maker, Toyota.
The Japanese government recognizes solid state battery technology as a crucial resource and is working to expand the domestic battery industry’s supply chain and enhance its competitiveness. METI has established guidelines for ensuring the stable supply of batteries and is strengthening the production infrastructure for batteries, battery components, and manufacturing equipment, which have been specifically designated as important materials.
Companies that are part of the supply assurance plan for batteries of the Ministry of Economy, Trade, and Industry can receive financial support through grants from the New Energy Development Organization (NEDO) research and development agency.
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