As you may know from my past columns, I’m a big fan of electric vehicles, but I also recognize that many people have concerns. These include the environmental impact of making the batteries and dealing with them at the end of their service life. There are also geopolitical and humanitarian concerns about where the raw materials come from (usually not the U.S.), the sometimes-dangerous conditions under which they’re mined, and the challenges of recycling them responsibly. EV batteries typically contain toxic substances such as lithium, nickel and cobalt, which must be handled carefully throughout their life cycle.

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And it’s not just EVs. Rechargeable batteries are in many household devices ranging from watches and hearing aids to home battery storage systems. My toothbrush

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