New “power paste” stores hydrogen without a pressure tank!

The Dresden Fraunhofer Institute recently succeeded in developing a "Power paste“Which can store hydrogen chemically. The paste is intended to be used as a problem solver for the storage and transport of H2 in fuel cell cars. For this transport, elaborately manufactured tanks are currently required, which function like pressure vessels and the pressure of the 700 bar can withstand compressed hydrogen. The new "power paste" based on Magnesium hydride According to the Fraunhofer Institute, it is flexible and should be hydrogen chemically safe can save and thus facilitate transport accordingly. With the “power paste”, an expensive filling station infrastructure could no longer be required in the future.

“Powerpaste” stores hydrogen

The fundamental question of how small vehicles like Drones, e-scooters or E-Bikes on the drive with a Fuel cell can be retrofitted, as the pressure surge when refueling would be far too great for this. Since the hydrogen can be easily stored at room temperature thanks to the new “power paste” and can also be easily released if necessary, the filling process could be made quite easy with the paste. Instead of having to go to a gas station, the driver simply changes the cartridge and fills up more tap water in the water tank provided for this purpose.

Cartridge as a replacement for the gas station

The new “power paste” is made from Magnesium powder, a readily available raw material. The powder is at a temperature of 350 ° C under five to six times atmospheric pressure Magnesium hydride converted. The magnesium hydride is used in the last step Ester and Metal salt mixed. In this way, the new "power paste" is created, which drives vehicles by a stamp that conveys the mass out of the cartridge, while at the same time Water is supplied from the water tank. This creates exactly the amount of gaseous hydrogenwhich exactly covers the needs of the fuel cell. Half of the hydrogen comes from the paste and the other half directly from the water.
The "power paste" is suitable, however not only for small vehicles. According to the Fraunhofer Institute, “power paste” is not the only thing the same range as can be achieved with gasoline, but also compared with compressed hydrogen brings the paste a better reach. This is one of the reasons why the paste is also suitable for trucks and cars, as well as for Increasing the range becomes interesting for electric cars. Even big ones Drones could stay in the air for several hours at a time due to the paste. A clear advantage at Observation, control or Inspection flights.

“Powerpaste” works without pressure tanks

A clear advantage of the "power paste" is that it also without hydrogen filling stations can be used. Since the paste is flowable and pumpable, it can be obtained from inexpensive filling systems using a normal tank process. Hence, costly gas station infrastructures are that 1-2 million euros per pump costs and are currently still required for gaseous hydrogen under high pressure, will be irrelevant in the future. By using the paste you can also Pressure tanks and liquid hydrogen be waived. Due to the advantages of the "power paste", the Fraunhofer Institute decided to build a production facility at the Fraunhofer Project Center for Energy Storage and Systems (ZESS) by the end of 2021, in which up to 4 tons of the "power paste" can be produced annually.

Of course that had not happened yet!

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