http://newscenter.lbl.gov/2018/02/28/scientists-confirm-century-o...

http://newscenter.lbl.gov/2018/02/2...eculation-chemistry-high-performance-battery/

This is a pretty big claim...

"One of the direct benefits of utilizing such materials for both electrodes in the battery is that neither of the two electrodes fundamentally limits the power capability, cycle life, or cost of the device,” said Colin Wessells, CEO at Natron Energy. The battery outperforms the Department of Energy’s cycle-life and price targets for grid-scale energy storage, as the researchers report in their latest study."