Singaporian Researchers developed a flexible battery for smart contact lenses
Smart contact lenses could be powered by a flexible battery as thin as a human cornea that stores electricity when immersed in saline solution. 
More information: https://www.theengineer.co.uk/content/news/ntu-singapore-team-develops-flexible-battery-for-smart-contact-lenses/
More information: https://www.theengineer.co.uk/content/news/ntu-singapore-team-develops-flexible-battery-for-smart-contact-lenses/The Engineer
Smart contact lenses could be powered by a flexible battery as thin as a human cornea that stores electricity when immersed in saline solution, NTU Singapore scientists report
