SEARCHING for a way to make an electric car that is truly competitive with its petrol and diesel equivalents is frustrating. The lithium-ion batteries used to store the juice which powers such cars are almost cheap enough and almost long-lasting enough to do so, but not quite. And unless they are fitted with petrol-driven generators known as range extenders, electric cars cannot go far without topping up the batteries. Even with the best modern technology, such top-ups take at least 20 minutes. What is needed is a better battery.
Many have tried. Many have failed. Read more.