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Researchers figure out how to get fresh lithium into batteries
Regular doses of lithium let a battery survive nearly 12K cycles (and counting).
While that sounds like science fiction, a team of Chinese researchers has identified a chemical that can deliver fresh lithium to well-used batteries, extending their life. Through repeated cyclings, bits of electrodes fragment and lose contact with the conductors that collect current, while lithium can end up in electrically isolated complexes. Then, using an electrolyte with dissolved LiSO 2 CF 3, they filled an electrode with lithium ions by applying a voltage, drawing off the gases that formed in the process.
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