John Miller, our resident supercap expert, recalls the early days of ultracapacitor work in the U.S. – including the days when he shook the streets of Las Vegas, burnt out an army truck, and more.
On 10 October 1990 the U.S. Department of Energy published a solicitation for the development of ultracapacitor technology intended for use in electric vehicles. The solicitation, published in Commerce Business Daily, was for four years of funding to develop prototype devices that were rated at 20V and would store about 1.8kJ of energy. The goal was an energy density of . . .