Maxell boosts battery capacity by factor of 20 | News | TechRadar UK Hitachi Maxell claims new Li-ion battery with 20x the power - Engadget
Yes, and Violet Fuel Cells supposedly has a 15 kw/liter density stack. The new Honda FCX car out in CA this year for fleet lease has about 1.5 kw/liter. All these supposed "breakthrough" products are great - if they really exist for actual application and not just bench test numbers. Show me the consumer products! We only have about 4 years to make a rapid transition and drop the floor out from individual transportation oil use before it really hits the fan.
Note that one of the associated companies is the parent of Subaru. An STi hybrid? 15 kW/litre = very powerful bomb. I'm sure they will take "measures" to ensure it is not detonatable.