
Not just laptops...
There are any number of applications waiting for lighter/denser/longer lasting/more stable batteries. These include electric and hybrid electric vehicles, aircraft and small scale green energy projects.
Current Lithium Ion batteries have about 1/10 the energy density of liquid fossil fuels. Current internal combustion engines are around 30% efficient, where electric drive trains are around 90%. This means that increasing the energy density in the batteries by 3 times means they can directly compete with fossil fuels for energy storage for transportation.
Black helicopter because maybe one day these too will be electric... and silent...