Reuters: Finding a better way to store electrical energy is the single biggest breakthrough needed to tackle climate change. But the goal of developing batteries that are lighter, as well as more compact, powerful and affordable remains frustratingly elusive.
Virtually all usable energy on Earth originates from the sun: wind, solar, wood, even fossil fuels. Oil, gas and coal are simply the fossilised remains of organisms that lived in ancient forests, lakes and seas, which relied on photosynthesis to harness...