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Solid-state batteries: Japanese players seek early lead in testing

Nippon Steel and Oki units set to offer diagnostic services for promising power source

Companies such as BMW plan to use solid-state batteries to power their electric vehicles. (Photo courtesy of BMW)

TOKYO -- As solid-state batteries move closer to broad use in electric cars and beyond, some Japanese companies will make a bid for early-mover advantage in the emerging field of testing these next-generation power sources.

Nippon Steel Technology, a unit of Japan's top steelmaker, plans to launch by March 2023 a testing service at its Amagasaki development center near Osaka. Unusually for such a service, this will extend as far as building prototypes based on designs provided by battery makers.

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