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. (a) Nyquist plots of LLZTO sintered at different temperatures. (b–c) Nyquist plots of LLZTO with different sintering additives. (d–e) Temperature-dependent Nyquist plots and (f) Arrhenius plots with activation energies of Al-LLZTO and AlBi-LLZTO sintered at 1000 ◦C and 1100 ◦C.
논문 해외 국제전문학술지(SCI급) Journal of Power Sources
Hybrid sintering additives for low-temperature densification and enhanced electrochemical performance of Ta-substituted LLZO solid electrolytes
  • 2026-02
  • Ki Sang Baek, Gunhee Park, Jinyoung Chun, Jung Hyun Kim
Photographic images of the sintering process and sintered pellets for (a) LLZT-MP and (b) LAO@LLZT. (c) Photographic images of multiple green and sintered pellets of LAO@LLZT showing the reliability of the sintering process. (d) Cross-sectional FE-SEM image and (e) XRD pattern of large-sized LAO@LLZT pellet. (f) Nyquist plot to measure the ionic conductivity at 25 ◦C of large-sized LAO@LLZT pellet. Performance comparison for garnet-based solid electrolytes previously reported with respec to (g) pellet size and density, and (h) ionic and electronic conductivity.
논문 해외 국제전문학술지(SCI급) Materials Today
Revitalizing multifunctionality of Li-Al-O system enabling mother-powder-free sintering of garnet-type solid electrolytes
  • 2026-02
  • Hwa-Jung Kim , Jong Hoon Kim , Minseo Choi , Jung Hyun Kim, Hosun Shin , Ki Chang Kwon , Sun Hwa Park , Hyun Min Park , Seokhee Lee , Young Heon Kim, Hyeokjun Park , Seung-Wook Baek
Relative density and ionic conductivity of LLZT pellets sintered under different conditions
논문 해외 국제전문학술지(SCI급) Journal of the Korean Ceramic Society
Effect analysis of lithium precursor on cost-effective production of Li6.4La3Zr1.4Ta0.6O12 solid electrolytes
  • 2026-01
  • Jin-Hee Bae, Minseo Choi, Jung Hyun Kim, Seokhee Lee, Hwa-Jung Kim, Seung-Wook Baek
Electrical conductivity as a function of Fe substitution at 0.1 A
논문 해외 국제전문학술지(SCI급) Ceramics International
Electrical properties of non-stoichiometric SmBa0.5Sr0.48(Co1-xFex)2.05O5+d (x= 0, 0.3, 0.5, 0.7) layered perovskite cathodes for SOFC
  • 2025-07
  • Jeong Yun Park , Yu Taek Hong , Yu Ri Lim , Bohyun Ryu , Harald Schlegl, Jung Hyun Kim
Surface and Cross-sectional SEM analysis of LLZTO Pellet under sintering temperature 1000oC and 1100o C: (a) ~ (d) Surface observation at 1000oC, (e) ~ (h) Surface observation at 1100oC
논문 국내 국내전문학술지(KCI급) New & Renewable Energy
Effect of Calcination Temperature on Ionic Conductivity of All-solid State Battery Electrolytes
  • 2024-04
  • Yu Taek Hong, Ji Min Im, Ki Sang Baek, Chan Gyu Kim, Seung Wook Baek, Jung Hyun Kim
Comparison of small area contact and large area contact between particles in cathodes; Charge transport pathways arising from (a) large-area contacts of dense cathodes and (b) small-area contacts of porous cathodes and conceptual depictions of an electric path (red lines) of (c) dense cathodes and (d) porous cathodes. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
논문 해외 국제전문학술지(SCI급) Ceramics International
Electrical conductivity properties of porous SmBaCo2O5+d and SmBa0.5Sr0.5Co2O5+d layered perovskite oxide systems for solid oxide fuel cell
  • 2022-10
  • Kyeong Eun Song, Harald Schlegl, Chan Gyu Kim, Ki Sang Baek, Yu Ri Lim, Jung Hyun Nam, Hyun Suk Kim, Jung Hyun Kim
Electrochemical activities of layered BCO-based materials for oxygen electrode reactions from EIS measurements. (a) Arrhenius plot of ASRs in SDC symmetric cell at 500–800 ◦C. (b) Electrical conductivities of BCO and NCBCO (dense bar) using a DC 4-probe method. (c) DRT plots in air at 700 ◦C. (d) ASR values in HF, MF, and LF regions at 700 ◦C calculated from DRT analysis.
논문 해외 국제전문학술지(SCI급) Chemical Engineering Journal
Layered barium cobaltite structure materials containing perovskite and CdI2-based layers for reversible solid oxide cells with exceptionally high performance
  • 2023-01
  • Minkyeong Jo, Hohan Bae, Kwangho Park, Muhammad Asif Hamayun, Gwang-Min Park, Jung Hyun Kim, Kang Taek Lee, Kug-Seung Lee, Sun-Ju Song, Jun-Young Park
The electrical conductivities under various measurement conditions of dense (a) SBSCO-0.5/0.48 and (b) SBSCO-0.45/0.5. The electrical conductivities according to applied currents (0.1, 0.5 and 1 A) of dense (c) SBSCO-0.5/0.48 and (d) SBSCO0.45/0.5.
논문 해외 국제전문학술지(SCI급) International Journal of Hydrogen Energy
Electrochemical characteristic of nonstoichiometric SmBa0.45Sr0.5Co2O5+d layered perovskite oxide system for IT-SOFC cathode
  • 2023-05
  • Kyeong Eun Song, Harald Schlegl, Hyunil Kang, Wonseok Choi, Jung Hyun Kim
EDS analysis of nanoneedles: (a) Nanoneedle TEM image, and (b ~ i) result of EDS
논문 해외 국제전문학술지(SCI급) International Journal of Hydrogen Energy
Generation of nanoflowers and nanoneedles on Co-based layered perovskite of IT-SOFC cathode affecting electrical conductivities
  • 2023-11
  • Ji Min Im, Kyeong Eun Song, Harald Schlegl, Hyunil Kang, Wonseok Choi, Seung-Wook Baek, Jun-Young Park, Hyun-Suk Kim, Jung Hyun Kim
(a~e) Electrical conductivities of dense SmBa0.5Sr0.5CoxO5+d (x = 1.9–2.1) and (f) Total electrical conductivities of SmBa0.5Sr0.5CoxO5+d (x = 1.9–2.1) with respect to various amounts of Co at the perovskite B-site.
논문 해외 국제전문학술지(SCI급) Ceramics International
Electrochemical properties of B-site non-stoichiometric layered perovskite SmBa0.5Sr0.5CoxO5+d (x=1.9–2.1) cathodes for IT-SOFC
  • 2024-07
  • Ji Min Im, Harald Schlegl, Jun-Young Park, Seung-Wook Baek, Jung Hyun Kim
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