A team of Australian researchers has developed metal alloys that are capable of storing electrical energy in the form of bound hydrogen at a much lower cost than lithium batteries..
All over the world, alternative energy sources are rapidly gaining popularity, but the bottleneck in this area is still the system of efficient accumulation and storage. However, scientists from the University of New South Wales have proposed a revolutionary solution to this problem..
After 20 years of research, the team succeeded in developing metal hydrides that bind well to hydrogen. The system they created uses the incoming energy to produce H2, which is then absorbed by the alloys and stays there until it is needed to generate electricity through a fuel cell..
The solid-state mixture can safely perform its task over a wide temperature range, since under normal conditions of the earth’s climate it is impossible to achieve spontaneous release of gas.
Researchers have not yet revealed the composition of the alloy, as they are still awaiting formal patent grant, but they say it contains titanium and other common metals..
Providence Asset Group is already interested in the development, the team said, and plans to release a home battery option next year for Australians who have installed solar panels and wind turbines in their homes. With a height of 1.3 m and a mass of 196 kg, its capacity will be about 60 kWh, which is 5 times higher than that of current lithium-ion devices..
text: Ilya Bauer, photo: University of NSW
Hydrogen Storage – Backstage Science