Sumitomo Chemical to mass-produce solid-state battery material for EVs

Japan materials maker sees halide as cheaper and easier to handle than other options Sumitomo Chemical's new halide-based solid electrolyte is said to match the performance of current mainstream materials. (Sumitomo Chemical) TOKYO — Sumitomo Chemical plans to begin mass production of a new electrolyte material for solid-state batteries that shows promise for electric vehicles as early as fiscal 2028, a move expected to lower costs without compromising on performance.

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