Sept 8, 2014: http://news.osu.edu/news/2014/09/08/first-ever-look-inside-a-working-lithium-ion-battery/
http://phys.org/news/2014-09-first-ever-lithium-ion-battery-video.html
http://www.science20.com/news_articles/window_into_a_working_lithiumion_battery-144367