There appears to be a company working on silicon-anode batteries: http://www.nexeon.co.uk/about/an-introduction-to-nexeon/ http://www.nexeon.co.uk/about/an-intr

There appears to be a company working on silicon-anode batteries: http://www.nexeon.co.uk/about/an-introduction-to-nexeon/ http://www.nexeon.co.uk/about/an-introduction-to-nexeon/ They claim to have a prototype factory producing 500 phones worth of battery material per day. Not the scale Samsung needs but enough for a one off phone run.