As we've noted before in covering the KillaCycle, electric motorcycles and other electric vehicles are coming rapidly but batteries still have a few issues, how far you can go on a single charge and how long it takes to recharge them. Well it looks like some companies are getting a bit closer to recharge times we can live with, under 10 minutes! After all, if you drive a pickup or SUV with a 30 gallon fuel tank, it takes close to 5 minutes to top it off from empty, if batteries can recharge in 10 minutes, we're getting there.
AeroVironment, a leader in unmanned aircraft systems and efficient electric energy systems, today announced that it performed a fast charge demonstration of a lithium chemistry electric vehicle battery pack for representatives of the California Air Resources Board (CARB). The 35kWh (kilowatt-hour) battery pack, developed by Altair Nanotechnologies, is designed for use in the Phoenix Motorcar Sport Utility Truck. This battery pack is designed to allow the truck to travel more than 100 miles on a single charge. The test, conducted by engineers at AV’s Monrovia, California Energy Technology Center, was a milestone in battery fast charging, demonstrating the capability of fully charging the pack in less than ten minutes.
AV engineers used a grid-connected AV advanced battery charger rated at 250kW. Prior testing of the Altairnano NanoSafe battery technology by AV demonstrated that such battery packs can sustain several cycles per day of ten minute charging and two hour discharging. Each cycle is equivalent to an electric vehicle traveling for two hours at 60 miles per hour.