Building better batteries: Researchers untangle the tiny strands of lithium that develop inside rechargeable batteries

When we plug in our cell phones to charge them, we take it for granted that they'll soon be brimming with energy for scrolling, texting and receiving news alerts. But the technology powering this—rechargeable lithium-ion batteries—heralded a genuine technological revolution when these batteries first appeared on the commercial scene in the 1990s, and they earned their developers the Nobel Prize in Chemistry in 2019. Without this innovation, our smartphones, wireless headphones and electric vehicles would be both environmentally and economically infeasible.

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