Charging EVs in Stockholm: But where does a dead battery go? Ranjithsiji / Wikimedia Commons By Kieran Cooke Driving an electric-powered vehicle (EV) rather than one reliant on fossil fuels is a key way to tackle climate change and improve air quality — but it does leave the old batteries behind as a nasty residue. New technologies give rise to their own sets of problems. The all-important battery in an EV has a limited life span — due to high operating temperatures, changing discharge rates and other factors, batteries in EVs in use today are unlikely to last for more than 10 years . The question is what to do with all those batteries once they have reached the end of their operating life. The dumping of electronic or e-waste — made up of old computers and other everyday equipment — is already a massive worldwide problem : EV industry analysts say similar difficulties could develop when EVs and their batteries reach the end of their lives. But a recent study by scientists at the University of Birmingham , UK, and colleagues, published in the journal Nature , comes up with some solutions. It says valuable materials, including cobalt, […]

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