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A new and safer way of storing hydrogen called POWERPASTE has been developed

Hydrogen - New Powerpaste for Hydrogen Storage - Renewable Energy Magazine, at the heart of clean energy journalism

Gasoline and diesel engines, which are powered by fossil fuels, will soon be sidelined by climate change. Instead, new propulsion systems will be required. One fuel with a big potential is hydrogen. Hydrogen vehicles are equipped with a reinforced tank that is fueled at a pressure of 700 bar. This tank feeds a fuel cell, which converts the hydrogen into electricity. This in turn drives an electric motor to propel the vehicle.  Courtesy of Fraunhofer Institute for Manufacturing Technology and Advanced Materials In the case of passenger cars, this technology is well advanced, with several hundred hydrogen-powered automobiles already in operation on German roads. At the same time, the network of hydrogen stations in Germany is projected to grow from 100 to 400 over the next three years. Yet hydrogen is not currently an option for small vehicles such as electric scooters and motorcycles, since the pressure surge during refilling would be too great.

Powerpaste Stores Hydrogen Energy | State of Clean Hydrogen

Scientists from the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Dresden made the sludgy gray paste, which heats hydrogen with magnesium and stabilizers so the hydrogen can be stored in cartridges even at room temperature. That s it in the photo above. What results is a stable medium that its makers say is 10 times more energy-dense than lithium-ion batteries, “When it comes time to release the energy, a plunger mechanism extrudes the paste into a chamber where it reacts with water to release hydrogen at a dynamically controlled rate, which then feeds a fuel cell to create electrical power with which to run an EV powertrain or other device. Part of the paste s impressive energy density comes from the fact that half of the hydrogen released comes from the water it reacts with.”

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