The battery can be charged for up to 200 cycles and does not contain wires or toxic heavy metals.
Researchers at the Nanyang Technological University (NTU) in Singapore have devised a micrometer-thin battery that can power smart contact lenses and be charged with tears, a university press release said.
Contact lenses have long been used for vision correction. With technological advancements, companies have been working to make smarter versions, connecting to devices like smartphones and displaying information close to the wearer’s eyes. Such applications require the lenses to have an internal battery.
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