From PC World: Rechargeable batteries are now used everywhere, from smartphones to electric vehicles. They’re convenient and more environmentally friendly, and they’ve come a long way in capacity and performance.
But there’s always been a big problem with all rechargeable batteries: the fact that they lose capacity over time.
Sure, there are best practices you can use to prevent unnecessary degradation and thereby extend the lifespan of a rechargeable battery. For example, keeping a battery between 30 and 70 percent can prolong its longevity. There’s even a dedicated feature that does this for you on modern iPhones and Android phones.
Even so, rechargeables still lose capacity despite best practices, and eventually they get so bad that you need to replace them. But we might now be one step closer to that being a problem of the past.
Researchers at Stanford University have discovered a method that can partially restore the capacity of silicon batteries. The findings were presented in an article in Science.
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