Tag Archives: nickel metal hydride batteries

Honda previously had been applying a heat treatment to used nickel-metal hydride batteries and then recycling nickel-containing scrap as a raw material for stainless steel. Now, the successful stabilization of the extraction process at a Japan Metals plant makes possible the extraction of rare earth metals with what’s said to be purity as high as that of newly mined and refined metals. Rare earth metals are in high demand and short supply. Since they are critical for the production of electric motors, demand will grow as the production of hybrids and EVs increase at automakers. Right now China controls 90% of the world’s supply of rare earth metals, and exports are tightly regulated. Continue reading →