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Prof. Younki Lee
School of Materials Science and Engineering
Gyeongsang National University, Jinju, Republic of Korea
Laboratory of Advanced Ceramics for Energy and EnvironmentIntroduction
2Laboratory of Advanced Ceramics for Energy and Environment
Research History: Electroceramics for Energy Applications
✓ Ionic transport in ceramics plays key roles in energy devices.
R.T. 800oC600oC400oC200oC
Oxygen Transport Membranes (OTMs)Na/S cellsNa/NiCl2 cells
All-Solid State Batteries μ-SOFCs
Low Temp.Na-Beta Batteries IT-SOFCs
Li+ conductor
Na+ conductor (Beta-alumina, NaSICON)
O2- conductor (YSZ, GDC)
Metal-AirBatteries
R.T. Na (or Li)/S batteries
SOFCs
H+ conductor (BZY, BCY)
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Research Interest: Solid electrolytes
Na/Li β“-Alumina
PEO-based Solid polymer
electrolyte
MaterialsProcessing &Cell Evaluation
Li/Na conducting
Electroceramics(LLZO, LLT,
NASICON etc.)
✓ Ionic transport and electrochemical polarization on solid electrolytes for
secondary batteries (Na/NiCl2, Room temp. Na/S, All solid state batteries, etc.)
based on defect chemistry of electroceramics
Laboratory of Advanced Ceramics for Energy and Environment
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Equipment
Laboratory of Advanced Ceramics for Energy and Environment
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PublicationGoun Kim, Yoon-Cheol Park, Younki Lee, Namung Cho, Chang-Soo Kim, Keeyoung Jung, ”The effect of cathode felt geometries on electrochemical characteristics of sodium sulfur (NaS) cells: Planar vs. tubular”, Journal of Power Sources, Volume 325, 1 September 2016, Pages 238–245
Kun Joong Kim, Byung Hyun Park, Sun Jae Kim, Younki Lee, Hongyeul Bae, Gyeong Man Choi, “Micro solid oxide fuel cell fabricated on porous stainless steel: a new strategy for enhanced thermal cycling ability”, Scientific Reports, (2016) 6:22443 | DOI: 10.1038/srep22443 | 01 March 2016
Jong Hoon Joo, Kyong Sik Yun, Jung-Hwa Kim, Younki Lee, Chung-Yul Yoo, Ji Haeng Yu, “Substantial Oxygen Flux in Dual-Phase Membrane of Ceria and Pure Electronic Conductor by Tailoring the Surface”, ACS Applied Materials & Interfaces,7(27) (2015) 14699-14707
Younki Lee, Haekyoung Kim, “Electrochemical performance of La2NiO4+δ cathode for intermediate-temperature solid oxide fuel cells”,Ceramics International 41 (2015) 5984-5991
Hongyeol Bae, Younki Lee, Kun Joong Kim, Gyeong Man Choi, “Effects of Fabrication Conditions on the Crystallinity, Barium Deficiency, and Conductivity of BaZr0.8Y0.2O3-δFilms Grown by Pulsed Laser Deposition”, Fuel Cells 15 (2015) 408-415
Sun Woong Kim, Younki Lee, Gyeong Man Choi, “Electrical conductivity of Gd-doped ceria film at low temperatures (300~500oC)”,Solid State Ionics 262 (2014) 411-415
Jong Hoon Joo, Kyong Sik Yun, Younki Lee, Jaewon Jung, Chung-Yul Yoo, Ji Haeng Yu, “Dramatically enhanced oxygen fluxes in fluorite-rich dual-phase membrane by surface modification”, Chemistry of Materials 26 (2014) 4387-4394
Younki Lee, Young Min Park, Gyeong Man Choi, “Micro-solid oxide fuel cell supported on a porous metallic Ni/stainless-steel bi-layer”, Journal of Power Sources 249 (2014) 79-83
Younki Lee, Jong Hoon Joo, Gyeong Man Choi, “Effect of Al- or Ga-additive on ionic conductivity of thin-film Gd-doped ceria” Solid State Ionics 249-250 (2013) 165-170
Younki Lee, Gyeong Man Choi, “Acceptor-doped ceria deposited on a porous Ni film as a possible micro-SOFC electrolyte”, Journal of Electroceramics 31 (2013) 238-244
Younki Lee, Dong Young Kim, Gyeong Man Choi, “GdBaCo2O5+x cathode for anode-supported ceria SOFCs”, Solid State Ionics 192 (2011) 527-530
Younki Lee, Jong Hoon Joo, Gyeong Man Choi, “Effect of electrolyte thickness on the performance of anode-supported ceria cells”, Solid State Ionics 181 (2010) 1702-1716
Laboratory of Advanced Ceramics for Energy and Environment
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Positions
Laboratory of Advanced Ceramics for Energy and Environment
✓ School of Materials Science and Engineering at Gyeongsang National University
(GNU) is seeking highly motivated graduate students for M.S. and Ph.D. to work
with Prof. Younki Lee, beginning Spring or Fall 2018 (Spring 2018 is preferred).
✓ Application period for Spring 2018: 03/11/17~ 24/11/17 (not fixed yet)
✓ Students will conduct research in the area of the following.
- Solid electrolyte for secondary batteries (Na or Li β“-Alumina, PEO-based polymer
electrolyte etc.)
✓ Applicants must have a bachelor´s degree in materials science and engineering,
chemical engineering, and chemistry.
✓ The students will have
- Full Scholarship & Stipend depends on participation in the projects and performances
- Incentives for paper publications
7Laboratory of Advanced Ceramics for Energy and Environment
Gyeongsang National University
✓ Website: http://eng.gnu.ac.kr/main/
✓ Brochure: http://eng.gnu.ac.kr/sub/01_07.jsp (~40 MB)
✓ School of MSE: TOP 3 Specialized school/department in GNU
8Laboratory of Advanced Ceramics for Energy and Environment
Contact
Prof. Dr. Younki Lee
School of Materials Science and Engineering
402-408, Jinju-daero 501, Jinju, Gyeongnam 52828
Republic of Korea
M: +82-10-4040-3039 T: +82-55-772-1688 F: +82-55-772-1689
Website: http://labace2.wordpress.com
Thank you for Your Attention
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