High-density hybrid powercapacitors: A new frontier in the energy race
"He tried to break them with charge and discharge rates up to 50C, more than double their rated capacity. They refused to fail. He left them fully charged for months at a time, and found them still well charged when he picked them up again. The University of Munich tested and confirmed their ability to handle temperatures down to -50 ºC (-58 ºF) and up to 45 ºC (113 ºF) without any heating or cooling systems."
"The highest density cells were getting between 200-260 Wh/kg, every bit the equal of today's leading commercial lithium batteries but with a higher charge and discharge rate, and no risk of explosion. The power-focused variants were delivering densities of 80 and 100 Wh/kg, and were charging and discharging at 10 and 20C."
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