Sumitomo Chemical (TYO:4005) plans to mass-produce halide-based electrolyte material for solid-state EV batteries starting in fiscal 2028, Nikkei Asia reported on Tuesday.
Developed with Kyoto and Tottori universities, the material matches the ionic conductivity of sulfide-based alternatives but avoids expensive humidity-controlled manufacturing, the news daily said.
Its compatibility with existing lithium-ion production lines could accelerate adoption while lowering costs, the publication said.
Sumitomo Chemical did not immediately respond to' request for comment.
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