According to The Wall Street Journal, Google has a group of researchers working on future battery technology for future devices. It seems that the team only has four researchers and got together in late 2012, with former Apple battery expert Dr. Ramesh Bhardwaj.
The Wall Street Journal says that the team
first started testing batteries developed by other companies for use in Google devices, but about a year later expanded to plan battery technologies that Google might develop.
Now it seems that the team are “trying to advance current lithium-ion technology and the cutting-edge solid-state batteries for consumer devices, such as Glass and Google’s glucose-measuring contact lens.”
It comes as no surprise that Google is working hard to try and make a breakthrough with future battery technology.