Breakthrough achieved in improving the ionic conductivity of fuel cell materials
The researchers at Aalto University developed synthesis and processing routes for development of ceramic nanocomposite materials, which resulted in a breakthrough in improving the ionic conductivity of the fuel cell electrolyte materials.
A record high ionic conductivity of 0.55 S/cm at 550oC has been achieved at Aalto University. Fuel cells fabricated using these nanocomposite materials produced an outstanding performance of 1.06 W/cm2.
Ceramic fuel cell technology has a tremendous potential for sustainable clean energy production. With the help of these superionic nanocomposite materials, the operating temperature of the fuel cells can be significantly reduced. This low temperature operation helps in improving the long-term stability of the devices.
'With the help of these superionic materials, the losses due to ionic transport in the electrolyte layer are dramatically reduced, which makes it possible to produce fuel cells performing over 1W/cm2. We envision to reach a fuel cell performance of 2.5 W/cm2 by depositing these potential materials with modern printing method', Docent, Dr. Muhammad Imran Asghar says.
This work is a part of an EU-Indigo project funded by the Academy of Finland. The partners in the project include Aalto University, University of Oslo, University of Aveiro, Indian Institute of Technology 鈥 Delhi, CGRI 鈥 CSIR Kolkata and VESTEL Turkey.
The synthesized superionic materials were characterized with various microscopic (SEM, TEM), spectroscopic techniques (XRD, Raman, FTIR) and other analyses (BET analysis, DSC, TGA) techniques. The high performance fuel cells were characterized using electrochemical impedance spectroscopy and voltage/current-density measurements.
Details regarding the results can be found in the articles published in International Journal of Hydrogen energy and Frontiers of Chemical Science and Engineering.
Research articles:
Muhammad Imran Asghar, Sakari Lepikko, Janne Patakangas, Janne Halme, Peter Lund. . Frontiers of Chemical Science and Engineering, in press, 2017. DOI: 10.1007/s11705-017-1642-2
Ieeba Khan, Muhammad Imran Asghar, Peter Lund, Suddhasatwa Basu. High conductive (LiNak)2CO3-Ce0.85Sm0.15O2 electrolyte compositions for IT-SOFC applications. International Journal of Hydrogen Energy, in press, 2017.
Contact:
Dr. Muhammad Imran Asghar (Adjunct Professor)
New Energy Technologies Group
Aalto University, Dept. of Applied Physics
tel: +358 50 344 1659
Imran.asghar@aalto.fi
Read more news
Samu Taulu develops next-generation brain imaging methods
Associate Professor of neurostimulation and neuroimaging Samu Taulu develops more precise methods for understanding the brain
EAA Best Paper and Presentation Award for Young Researchers for postdoctoral researcher Thomas Deppisch
The awarded work shows how speech can be made clearer in noisy environments while still preserving directional cues
Professor Hanna Maylett: 鈥淲ithout time spent together, a shared vision cannot emerge鈥
According to Hanna Maylett, associate professor of film directing, a director doesn鈥檛 need to know all the answers; rather, their role is to create a process through which those answers can be discovered together.