Dr. Kunjoong Kim Junior Research Group Leader

TUCHACF Professur für Chemie der Festkörperelektrolyte (Prof. Rupp)
85748 Garching b. München, Lichtenbergstr. 4/III (Elektochemische Materialien)

PhD, Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Republic of Korea, 2017
Exsolution-driven fuel electrode for thermally robust micro-SOFC supported on stainless steel
BSc, Materials Science and Engineering, Sejong University, Republic of Korea, 2011

Kunjoong's research is focused on developing efficient and durable catalytic metal oxide materials that enable the direct transformation of carbon dioxide and water into methane and/or other hydrocarbons with high conversion and during prolonged high temperature thermochemical cycling.

His research interest also includes new concepts for ceramic interface engineering based on electrode/electrolyte arrangements for electrochemical energy storage and conversion devices such as solid state batteries and fuel cells.

Schematic of solid state battery.

Processing thin but robust electrolytes for solid-state batteries
M. Balaish*, J.C. Gonzalez-Rosillo*, K.J. Kim, Y. Zhu, Z.D. Hood, J.L.M. Rupp
Nature Energy, in press (2021)

*Joint first authorship

Lithium-film ceramics for solid-state lithionic devices
Y. Zhu, J.C. Gonzalez-Rosillo, M. Balaish, Z.D. Hood, K.J. Kim, J.L.M. Rupp
Nature Review Materials (2020)


Solid‐State Li–Metal Batteries: Challenges and Horizons of Oxide and Sulfide Solid Electrolytes and Their Interfaces
K.J. Kim, M. Balaish, M. Wadaguchi, L. Kong, J.L.M Rupp
Advanced Energy Materials, 202002689 (2020)

*Joint first authorship

All ceramic cathode composite design and manufacturing towards low interfacial resistance for garnet-based solid-state lithium batteries
K.J. Kim and J.L.M. Rupp
Energy & Environmental Science, in press (2020)


High energy and long cycles
K.J. Kim, J.J. Hinricher, J.L.M. Rupp
Nature Energy, 5, 278–279 (2020)


Towards Controlling Filament Size and Location for Resistive Switches via Nanoparticle Exsolution at Oxide Interfaces
J. Spring, E. Sediva, Z.D. Hood, J.C. Gonzalez-Rosillo, W. O'Leary, K.J. Kim, A.J. Carillo, J.L.M. Rupp
Small, 16, 2003224 (2020)


La0.6Sr0.4Cr0.8Co0.2O3 perovskite decorated with exsolved Co nanoparticles for stable CO2 splitting and syngas production
A. Carrillo, K.J. Kim, Z. Hood, A.H. Bork, J.L.M. Rupp
ACS Applied Energy Materials, 3, 5, 4569–4579 (2020)

19 Lithium-Battery Anode Gains Additional Functionality for Neuromorphic Computing through Metal-Insulator Phase Separation
J. C. Gonzalez-Rosillo, M. Balaish, Z. Hood, N. Nadkarni, D. Fraggedakis, K. Kim, K.M. Mullin, R. Pfenninger, M. Z. Bazant, J.L.M Rupp
Advanced Materials, 1907465 (2020)
18Facet-Dependent in situ Growth of Nanoparticles in Epitaxial Thin Films: The Role of Interfacial Energy
K.J. Kim, H. Han, T. Defferriere, D. Yoon, S. Na, S.J. Kim, A.M. Dayaghi, Junwoo Son, T.S. Oh, H.M. Jang, and G.M. Choi
Journal of the American Chemical Society J. Am. Chem. Soc., 141, 18, 7509–7517 (2019)
17Lattice strain-enhanced exsolution of nanoparticles in thin films
H. Han, J. Park, S.Y. Nam, K.J. Kim, G.M. Choi, S.S.P. Parkin, H.M. Jang & J.T.S. Irvine
Nature Communications 10, 1471 (2019)
16High-throughput roll-to-roll fabrication of flexible thermochromic coatings for smart windows with VO2 nanoparticles
Y. Kim, S. Yu, J. Park, D. Yoon, A.M. Dayaghi, K.J. Kim, J.S. Ahn, and J. Son
Journal of Materials Chemistry C 6, 3451-3458 (2018)
15Oxidation of porous stainless-steel coated with donor-doped SrTiO3 in anodic atmosphere of solid oxide fuel cell
A. M. Dayaghi, K. J. Kim, S. J. Kim, Y. S. Sung and G. M. Choi
Journal of Power Sources 360, 488-494 (2017)
14Thermal cycling and electrochemical characteristics of solid oxide fuel cell supported on stainless steel with a new 3-phase composite anode
A. M. Dayaghi, K. J. Kim, S. J. Kim, S. W. Kim, H. Bae and G. M. Choi
Journal of Power Sources 354, 74-84 (2017)
13Er0.4Bi1.6O3−δ– La0.8Sr0.2MnO3−δ nano-composite as a low-temperature firing cathode of solid oxide fuel cell
S. J. Kim, A. M. Dayaghi, K. J. Kim and G. M. Choi
Journal of Power Sources 344, 218-222 (2017)
12Micro solid oxide fuel cell fabricated on porous stainless steel: a new strategy for enhanced thermal cycling ability
K. J. Kim, B. H. Park, S. J. Kim, Y. Lee, H. Bae and G. M. Choi
Scientific reports 6, 62443 (2016)
11Effect of Gd-doped ceria interlayer on the stability of solid oxide electrolysis cell
S. J. Kim, S. W. Kim, Y. M. Park, K. J. Kim and G. M. Choi
Solid State Ionics 295, 25-31 (2016)
10Polarization and stability of La2NiO4+δ in comparison with La0.6Sr0.4Co0.2Fe0.8O3-δ as air electrode of Solid Oxide Electrolysis Cell
S. J. Kim, K. J. Kim, A. M. Dayaghi and G. M. Choi
International Journal of Hydrogen Energy 41, 14498-14506 (2016)
9Stainless steel-supported SOFC with La0.2Sr0.8Ti0.9Ni0.1O3-δ-YSZ composite anode
A. M. Dayaghi, K. J. Kim, S. W. Kim, J. Park, S. J. Kim, B. H. Park and G. M. Choi
Journal of Power Sources 324, 288-293 (2016)
8Flexible solid oxide fuel cells supported on thin and porous metal
H. J. Cho§, K. J. Kim§, Y. M. Park and G. M. Choi
International Journal of Hydrogen Energy 41, 9577-9584 (2016) (§ Equally contributed)
7Y0.08Sr0.88TiO3-CeO2 Composite as a Diffusion Barrier Layer for Stainless-steel Supported Solid Oxide Fuel Cell
K. J. Kim, S. J. Kim and G. M. Choi
Journal of Power Sources 307, 385-390 (2015)
6Narrow Band Gap Ferroelectric Photovoltaic Effect in Epitaxial Hexagonal Manganite Thin Films
H. Han, S. Song, J. Lee, K. J. Kim, G.-W. Kim, T. Park and H. M. Jang
Chemistry of Materials 27, 7425-7432 (2015)
5A novel solid oxide electrolysis cell to separate anodic from cathodic polarization under high electrolysis current
S. J. Kim, K. J. Kim and G. M. Choi
International Journal of Hydrogen Energy 30, 9032-9038 (2015)
4Effect of Ce0.43Zr0.43Gd0.1Y0.04O2-δ contact layer on stability of interface between GDC interlayer and YSZ electrolyte in solid oxide electrolysis cell
S. J. Kim, K. J. Kim and G. M. Choi
Journal of Power Sources 284, 617-622 (2015)
3Phase stability and oxygen non-stoichiometry of Gd-doped ceria during sintering in reducing atmosphere
K. J. Kim and G. M. Choi
Journal of Electroceramics 35, 68–74 (2015)
2Low-temperature fabrication of protonic ceramic fuel cells with BaZr0.8Y0.2O3−δ electrolytes coated by aerosol deposition method
H. Bae, J. Choi, K. J. Kim, D. Park and G. M. Choi
International Journal of Hydrogen Energy 40, 2775-2784 (2015)
1Effects of fabrication conditions on the crystallinity, barium deficiency, and conductivity of BaZr0.8Y0.2O3–δ films grown by pulsed laser deposition
H. Bae, Y. Lee, K. J. Kim and G. M. Choi
Fuel Cells 15, 408-415 (2015)