Researchers race to make a long-lasting battery for cellphones & other devices

http://www.washingtonpost.com/national/health-science/researchers-race-to-make-a-long-lasting-battery-for-cellphones-and-other-devices/2012/05/14/gIQArfyZPU_story.html

/ lithium ion LiIon sodium magnesium carbon air electrode charge recharge /