A research team led by Prof. Lee and Byun, Developing High Performance SOFC Based on Metal Functional Layers
- 공과대학
- Hit5819
- 2019-06-17
Professor Lee Won-young and Byun Do-young,
the Department of Mechanical Engineering,
Development of High Performance Solid Oxide Fuel Cell
Based on Metal Functional Layers
- ACS Applied Energy Meteorites, an international journal of the field of energy
(ACS Applied Energy Materials) Published -
[Figure 1] ACS Applied Energy Materials cover figure
Professor Lee Won-young of the Department of Mechanical Engineering and Professor Byun Do-young's research team (Dr. Choi Min-ki, co-author Hwang Sang-yeon, Ph.D. program), said they published the results on the development of high-performance solid oxide fuel cells based on metal functional layers in ACS Applied Energy Materials, one of the world's most prestigious journals in the field of energy.
Professor Lee Won-young and his research team successfully printed high-conductivity metals such as silver, nickel and aluminum on the electrolyte and air pole surfaces of solid oxide fuel cells using EHD jet printing, and built a high-performance solid oxide fuel cell system that operates at medium and low temperatures of 650 degrees or lower.
Through the metal functional layer, the research team confirmed that the supply and distribution of electrons essential to the electrolyte and air pole response of solid oxide fuel cells are facilitated, thereby reducing the polarizing resistance of electrodes directly indicating electrochemical performance of electrodes by about 10 times, while improving the power density of fuel cells by about two times.
Professor Lee Won-young said, "We expect that existing solid oxide fuel cells will be able to overcome the limitations of performance by introducing metal functional layers and contribute greatly to development of technologies in commercialization phase, especially since EHD printing method that is easy for large- and high-speed processes."
The research was carried out with support from the Global Frontier Project of the Ministry of Science and Technology, the Strategic Task Force of the Korea Research Foundation and the New Research Support Project, and was published online on May 6 as a cover for ACS Applied Energy Materials, an international journal in the energy field.
[Figure 2] Metal functional layer structure printing using EHD jet printing techniques
(a) an air-polar fabrication scheme with a metal functional layer
(b) an optical image of a metal functional layer printed precisely at intervals of 50 μm, utilizing materials of silver, nickel and aluminum
[Figure 3] Electrochemical performance evaluation and modulus of solid oxide fuel cell with metal functional layer