Technology to produce, convert and store energy is central to these researchers’ efforts.
. These scientists are pursuing breakthroughs in high-profile areas of energy research: hydrogen, grid batteries and electrochemical reduction of carbon dioxide.Anne Lyck Smitshuysen wants to find a cost-effective way to unlock the hydrogen power in water molecules. As a PhD student at the Technical University of Denmark in Kongens Lyngby, she works with solid-oxide electrolysis cells that use electric currents to split water into hydrogen and oxygen.
In addition to her PhD research, Lyck Smitshuysen is employed as a fuel-cell specialist at DynElectro, a Danish start-up company focused on hydrogen-based energy. In March, a papershe co-authored described the company’s successful attempt to increase the lifespan of hydrolysis cells by rapidly cycling between a direct current and an alternating current.
Longer-lasting cells would help to further reduce the costs of hydrolysis, a crucial step towards a greener energy system. “I want to do something to move towards a more carbon-neutral society,” Lyck Smitshuysen says. “That’s a big motivator.”Shirley Meng sees a future power grid that runs largely on megawatt-scale batteries storing energy harvested from wind and solar power.
Although she calls herself a “battery person”, Meng emphasizes that it will take a wide variety of energy sources and storage strategies to power the future grid. She envisions a mixture of ion batteries and ‘flow batteries’, which store energy in liquid tanks. She also sees an important role for hydrogen in energy production and storage.
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