Researchers at MIT reckon they've struck oil. In fact, you're looking at what they call "Cambridge crude" -- a substance that could halve the weight and cost of EV batteries and make them quicker to charge too. The black goo is packed with a high concentration of energy in the form of particles suspended in a liquid electrolyte. When separated by a filter, these particles function as mobile electrodes that can be pumped into and around a system before the energy is released. So instead of waiting up to 20 hours to juice your Nissan Leaf, you could potentially just pump this pre-charged substan
