Curiouswon, its not battery tech, its supercapacitor tech.
The scientists have created small devices that can power a fan or an LED for a few minutes, and claim that with further work the material could eventually reach energy densities of up to 180 watt-hours per kilogram, compared to 10 Whr/kg for the best currently available supercapacitors.
That would bring supercapacitors in line with lithium-ion batteries. It could mean smartphones that charge in seconds, and cheaper, safer electric vehicles that you can power in the same amount of time it takes to fill up a petrol car. Instead of charging every other stop, China's buses could run for 20 or 30 before being juiced up in seconds.
Raider
