Google filed a patent for a sealed solid state battery to be deployed in their smart contact lens.
The electrodes and electrolyte are solid state films that are layered on top of one another to create a stacked structure disposed on a substrate. A polymeric sealant material is then applied over and around the battery stack and a moisture barrier is formed over the sealant material to thereby prevent moisture from reaching the battery. The battery is included within the smart contact lens. The sealant material protects the battery from tear fluids in the eye.
Publication number: US20160049624
Patent Title: Sealed Solid State Battery
Publication type: Grant
Publication date: 18 Feb 2016
Filing date: 1 Oct 2014
Inventors: Ramesh C. Bhardwaj; James Etzkorn; William James Biederman; Otis; Brian Otis;
Original Assignee: Google Inc.