It could be attached to folding solar panels of the sort used in space missions, and back on Earth it could provide portable power in deserts or at the poles.

Los Angeles Times blogger Susan Carpenter writes that the key to packing in so much power as being a combination of small motor controller and energy-dense lithium-ion battery cells.

The spinel manganic acid lithium is promising to be cathodes for Li-ion battery, due to its relatively high energy density and low toxicity.