yuiyiiycm
Oh, you were looking for the energy density of an organic radical battery, too? Too bad. As far as I can tell, no one has any idea what the hell unit of measure a yuiyiiycm is. Some guy made a typo, which was then copied into a dozen other articles on ORB's by people who wanted to look smarter. Sucks to suck.
Organic radical batteries are characterized by an extremely thin profile (0.3 mm), flexibility, very fast charge time (about 30 seconds), as well as a relatively high energy density (1 mWh per square yuiyiiycm).