NEC's unveiled their newest prototype of their Ultra-thin organic radical battery (ORB) today, measuring in at 0.3 mm. These batteries are not only small, but also flexible, and can be attached to integrated circuit (IC) cards. The IC cards themselves aren't too think either (measuring around 0.73 to 0.76mm thickness on average).

The power behind NEC's latest ORB is enough to match a Li-Ion battery. That's not to say that it'll run your laptop, but ratio-wise, it delivers a higher power output and faster recharging speeds. Currently, these new batteries have a capacity of 3mAh, which should be enough to perform 2,000 display screen updates, 360 consecutive flash firings and 35 location transmissions on just one charge. As far as longevity, these ORB's retain 75% of their charge/discharge capacity even after 500 cycles, similar to the performance of Li-Ion smartphone batteries.

Source: japantechniche.com