Laboratory of Advanced Ceramics for Energy and Environment Introduction Prof. Younki Lee

Transcription

1 Laboratory of Advanced Ceramics for Energy and Environment Introduction Prof. Younki Lee School of Materials Science and Engineering Gyeongsang National University, Jinju, Republic of Korea

2 2 Research History: Electroceramics for Energy Applications Ionic transport in ceramics plays key roles in energy devices. R.T. Na (or Li)/S batteries Na/NiCl 2 cells Na/S cells Oxygen Transport Membranes (OTMs) Metal-Air Batteries Low Temp. Na-Beta Batteries IT-SOFCs SOFCs All-Solid State Batteries μ-sofcs R.T. 200 o C 400 o C 600 o C 800 o C Li + conductor Na + conductor (Beta-alumina, NaSICON) H + conductor (BZY, BCY) O 2- conductor (YSZ, GDC)

3 3 Research Interest: Solid electrolytes Ionic transport and electrochemical polarization on solid electrolytes for secondary batteries (Na/NiCl 2, Room temp. Na/S, All solid state batteries, etc.) based on defect chemistry of electroceramics Na/Li β - Alumina PEO-based Solid polymer electrolyte Li/Na conducting Electroceramics (LLZO, LLT, NASICON etc.) Materials Processing & Cell Evaluation

4 4 Equipment

5 5 Publication Goun 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 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: /srep 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) Younki Lee, Haekyoung Kim, Electrochemical performance of La2NiO4+δ cathode for intermediate-temperature solid oxide fuel cells,ceramics International 41 (2015) 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) 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) 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) Younki Lee, Young Min Park, Gyeong Man Choi, Micro-solid oxide fuel cell supported on a porous metallic Ni/stainless-steel bilayer, Journal of Power Sources 249 (2014) 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 (2013) 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) Younki Lee, Dong Young Kim, Gyeong Man Choi, GdBaCo2O5+x cathode for anode-supported ceria SOFCs, Solid State Ionics 192 (2011) 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)

6 6 Positions 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

7 7 Gyeongsang National University Website: Brochure: (~40 MB) School of MSE: TOP 3 Specialized school/department in GNU

8 8 Contact Prof. Dr. Younki Lee School of Materials Science and Engineering , Jinju-daero 501, Jinju, Gyeongnam Republic of Korea M: T: F: E: Website:

9 Thank you for Your Attention 9