In February of this year, the Scottish Marine Science Association (SAMS) successfully conducted the first flight test using a solid-state hydrogen-powered system drone at the Scottish airport, taking off for 10 minutes and running 200 feet and landing smoothly.
The prototype of the drone was developed by the British company Cella Energy and Arcola Energy. It uses Cella's hydrogen-powered gas generator and Arcola's integrated fuel cell.
The battery operates on the principle that the gas generator uses a proprietary solid material that will release a large amount of hydrogen atoms when heated above 100 °C. According to Phil Anderson, head of the Marine Technology R&D team at the Scottish Marine Science Association, drones can fly for two hours with this fuel. Its performance is three times that of lithium batteries, and it can also form a series of shapes for specific applications, suitable for mobile devices like drones.
For the time being, hydrogen fuels have outperformed lithium batteries. According to the data, a Singapore-based hydrogen fuel cell drone can fly for 4 hours without load, and can support 150 minutes at 1Kg full load. But a 300-gram lithium battery can only fly a 500-gram drone for 17 minutes.
The advantage of using a solid hydrogen route is storage. A report released at the Green Car Conference in February stated: "The newly developed material is stable in air at temperatures below 500 ° C, solving the problem of the need to compress hydrogen during transportation. Because it is A hydride that is chemically recyclable, so Cella Energy says it is working with partners in the chemical industry to take an existing approach to cost-effective industrial recycling at a certain scale."
“For us, this is an exciting market.†Cella CEO Aleksey Sorokin said, “It is growing rapidly, whether it is the emergency department, or investigating or measuring wind turbines and gas. Companies with infrastructure such as pipelines have an urgent need for such technologies."
“Making drones use clean and reliable power, such as our hydrogen system, is critical to a range of environmental and climate monitoring, and light power has always been a limitation of the aircraft, but such restrictions may not last long.†Arcola Ben Todd, managing director of the company, said, "We are pleased to have been able to verify Cella's small hydrogen storage capacity and successfully integrate the battery into the fuselage."
In addition, according to Cella, the company's solid-state hydrogen storage technology also solves the problem of transporting compressed gaseous hydrogen. Because solid materials are used instead of compressed gaseous hydrogen, this allows the material to remain stable in air and below 50 °C. In addition to the use of drones, Cella is also working with aerospace systems, which may be used in Airbus aircraft in the future.
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