Asphalt can improve battery charge speeds
 

Road power

Boffins at the Rice lab have developed anodes comprising porous carbon made from asphalt that showed exceptional stability after more than 500 charge-discharge cycles which means batteries can be charged 20 times faster.

A high-current density of 20 milliamps per square centimeter demonstrated the material's promise for use in rapid charge and discharge devices that require high-power density. The Tour lab previously used a derivative of asphalt -- specifically, untreated gilsonite, the same type used for the battery -- to capture greenhouse gases from natural gas.

http://fudzilla.com/news/44652-aspha...-charge-speeds