Wednesday, May 26, 2021

Millions of electric cars are coming. What happens to all the dead batteries?

Neither the production of new electric vehicles nor the recycling of old electric vehicles is environmentally friendly! We the people are being fooled!

"... Governments are inching toward requiring some level of recycling. In 2018, China imposed new rules aimed at promoting the reuse of EV battery components. The European Union is expected to finalize its first requirements this year. In the United States, the federal government has yet to advance recycling mandates, but several states, including California—the nation’s largest car market—are exploring setting their own rules.

Complying won’t be easy. Batteries differ widely in chemistry and construction, which makes it difficult to create efficient recycling systems. And the cells are often held together with tough glues that make them difficult to take apart. That has contributed to an economic obstacle: It’s often cheaper for batterymakers to buy freshly mined metals than to use recycled materials. ...
To extract those needles, recyclers rely on two techniques, known as pyrometallurgy and hydrometallurgy. The more common is pyrometallurgy, in which recyclers first mechanically shred the cell and then burn it, leaving a charred mass of plastic, metals, and glues. At that point, they can use several methods to extract the metals, including further burning. “Pyromet is essentially treating the battery as if it were an ore” straight from a mine, Gaines says. Hydrometallurgy, in contrast, involves dunking battery materials in pools of acid, producing a metal-laden soup. ...
Pyrometallurgy ... [very] is energy intensive ...
Both processes produce extensive waste and emit greenhouse gases, studies have found. ..."

Millions of electric cars are coming. What happens to all the dead batteries? | Science | AAAS

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