[Robotgroup] A Texas company says it can make a new ultracapacitor power system to replace the electrochemical batteries in everything from cars to laptops

[Marc Emerson]

Sounds like a good robot battery. Would be even better if we had motors
that could run on 3500 volts.

 

http://www.technologyreview.com/Biztech/18086/

 

For example, the company's system claims a specific energy of about 280
watt hours per kilogram, compared with around 120 watt hours per
kilogram for lithium-ion and 32 watt hours per kilogram for lead-acid
gel batteries. This leads to new possibilities for electric vehicles and
other applications, including for the military