The US Navy’s Railgun Breakthrough Could Change Energy Storage
ONR researchers developed their own capacitors, more compact yet capable of supplying 20 megajoules per shot, with a goal of 32 megajoules by next year. ONR said you can think of a megajoule as about the same, energy-wise, as a one-ton vehicle moving at 160 mph. These new capacitors “represent a new generation of pulse power, with an energy density of over a megajoule per cubic meter,” said Beutner. The capacitors, which store energy, are also able to recharge quickly enough in order to fire ten times in a per minute.