A student accidentally created a rechargeable battery that she says could last 400 years

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• In 2016, doctoral candidate Mya Le Thai at the University of California Irvine accidentally created a rechargeable battery that could last up to 400 years.
• Researchers were experimenting with nanowires that cracked after repeated charging cycles, but Thai coated gold nanowires in manganese dioxide and a Plexiglas-like electrolyte gel.