Electric vehicles (EVs) are often touted as one answer to the burgeoning number of emissions created by a growing transportation sector. But for all their environmentalist halo, those broader benefits are not simply a matter of zero tailpipe emissions whats in the batteries, and the whole supply chain. The materials the batteries are built from materials like lithium, cobalt and nickel, in this instance contribute to the carbon footprint of the batteries at every stage of their lifecycle, from extracting and processing the ingredients, to making the battery, to recycling or disposing of it. Shoot for the cloudsEven if EVs carbon footprint is ultimately smaller than plain ol internal combustion engine cars, battery production is a considerable piece of the puzzle here. And, in the process, the humanity and environmental costs (both conflict and unsafe working conditions and disruption of local ecosystems) of resource extraction drew attention to cobalt mining in the developing world, as well. Against this backdrop we see a search for innovation with bold projects in the making of recycling technologies of the materials of tomorrow, alternatives and sustainable supply chains. One day, they might be used to curb greenhouse gas emissions and cut back on precious raw materials. Last but not least, EV diffusion being inherently in the future carbon neutral world policy and independent of the battery materials bioburden reduction EV is a typical case where one must consider greener options after the technology hits the surface.
Yucheng Jin (Tue,) studied this question.
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