Hydrogen Car Storage Fill-up Breakthrough

Filling a car with enough hydrogen in five minutes to go 300 miles has recently become more possible.

Science Daily reports:

"The system uses a fine powder called metal hydride to absorb hydrogen gas. The researchers have created the system's heat exchanger, which circulates coolant through tubes and uses fins to remove heat generated as the hydrogen is absorbed by the powder. The heat exchanger is critical because the system stops absorbing hydrogen effectively if it overheats, said Issam Mudawar, a professor of mechanical engineering who is leading the research. 'The hydride produces an enormous amount of heat,' Mudawar said. 'It would take a minimum of 40 minutes to fill the tank without cooling, and that would be entirely impractical.'" See full article.