Industry experts have for long been trying to develop a fuel cells to work at 500-degree Celsius and with high power density. This would give them a longer life and make its components cheaper. In a latest research spearheaded by a professor at Northwestern University Sossina Haile, they have come up with a new fuel cell providing high power densities and stability at optimal temperatures. This discovery makes fuel cells more viable option for a sustainable energy future.
The latest findings of the research was published on 12 February in the journal called Nature Energy. The lead author of the report is named Sihyuk Choi, who is a postdoctoral fellow.
New Electrolyte Overcomes Problems of Previous Ones
Other researches conducted a while back had revealed the ability of some fuel cells in protonic ceramic to generate power in an eco-friendly and affordable manner. However, their electrolyte conductivities which was high didn’t succeed in yielding expected power outputs.
The team of researchers conducting the study showed that by combining high-activity cathode with a different matter composition, an electrolyte which is chemically stable and labelled as BZCYYb4411 can yield impressive density in power and stability in the crucial intermediate temperature regime. This unique electrolyte enabled quick movement of the ions and, unlike other electrolytes used previously, were stable even after hundreds of hours of operation.
Scientists claim they tackled the problem by changing the electrode, bettering the electrolyte, and generating solid communication and contact between two materials.