Honda collects IMA batteries from across Japanand overseas, and delivers about
1,000 each month to Japan Metals & Chemicals Co.’s Oguni Works. The batteries
are dismantled into modules that are calcinated, pulverized, and put through an acid–reduction process for separation into iron scrap, a material containing nickel and cobalt, and a material containing rare earths. The iron scrap is recycled into steel material that contains iron and manganese.
The material containing nickel and cobalt is processed into a nickel-cobalt alloy through a reduction reaction. The material containing rare earths is processed into a rare earth alloy (rare earth metals) using fused salt electrolysis. The NiCo alloy and rare earth metals are planned to be used as materials for battery electrodes.
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