Google X labs shifted in 2013 from testing

According to a story in Friday's Wall Street Journal,
 a small four person group inside Google X labs shifted
 in 2013 from testing third party batteries, to looking
at new technologies that Google could use itself on
devices like smartphones, wearables, tablets and more.
The group, led by former Apple battery expert
Dr. Ramesh Bhardwaj, was originally formed back in 2012.

One concept that Google is working on is a flexible
 solid-state battery similar to the project that Dyson
recently invested $15 million in. These batteries replace
 liquid chemicals with a solid that current is transmitted