article thumbnail

Graphene-based supercapacitor offers energy density comparable to NiMH battery, but with rapid charge and discharge

Green Car Congress

These values are comparable to those of NiMH batteries, the researchers note, but the new supercapacitor offers the ability to be charged or discharged within seconds or minutes. Jang (2010) Graphene-Based Supercapacitor with an Ultrahigh Energy Density. A paper on their work was published online in the ACS journal Nano Letters.

NiMH 356
article thumbnail

Hyundai Debuts Sonata Hybrid at New York Show

Green Car Congress

liter Theta II engine (169 hp/126 kW at 6,000 rpm and 156 lb-ft/212 N·m of torque at 4,500 rpm); a 6-speed automatic transmission; a 30 kW (151 lb-ft/205 N·m) electric motor; and a lithium-polymer battery pack. lithium polymer battery pack (5.3 2010 Altima. 2010 Fusion. 2010 Lexus HS250h. Hyundai Hybrid Blue Drive.