We've known for several weeks now that Nissan was planning to show off an all-electric car based on the JDM Nissan Cube at this week's New York Auto Show. The Denki (meaning electric) Cube has of course spilled out onto the interwebs in advance of it's official unveiling tomorrow at the Javits Center. Looking much like the battery pack that will power it, the Denki Cube should appeal to fans of the now-departed first-gen Scion xB. The basic Cube has been dressed up inside and out to better shout out about its high tech power supply. Nissan has a lithium battery joint venture in Japan with NEC that will likely be the source of the energy storage systems. Stay tuned for more details tomorrow!