연구성과 1 페이지 | 포항공과대학교 친환경소재대학원

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연구성과

Total 192건 1 페이지

192

ICMEL [ICMEL] Prof.Kyoungdoc Kim: Solidification microstructure and elemental segregation in laser-based powder bed fusion additively manufactured IN738LC Ni-based superalloy AbstractWe systematically investigate the solidification microstructure and elemental segregation in Inconel 738LC fabricated via laser-based powder bed fusion of metals (PBF-LB/M) under three representative process conditions. Micros..

작성자 최고관리자 작성일 2026-02-12
191

EMRL [EMRL] Prof. Kyu-Young Park: Concurrently Achieving 10 mAh cm and Ultralow Binder Content via Active‐Surface‐Guided Fibrillation for Fab‐Scale Dry‐Processed Lithium‐ion Batteries ABSTRACTBinder fibrillation-based dry electrode manufacturing is a promising strategy for producing thick electrodes for high-energy-density lithium-ion batteries. However, its roll-to-roll scalability remains limited by competing demands a..

작성자 최고관리자 작성일 2026-01-12
190

EMRL [EMRL] Prof. Kyu-Young Park: High-Entropy Doped KTiOPO4-Type Vanadium-Based Fluorophosphate Cathodes for High-Energy Sodium-Ion Batteries AbstractThe development of high-energy-density and high-power cathode materials represents a critical requirement for advancing practical sodium-ion battery (SIB) technologies. In this work, a high-entropy-doped KTiOPO4 (KTP)-type NaV0..

작성자 최고관리자 작성일 2026-01-12
189

EMRL [EMRL] Prof. Kyu-Young Park: Enabling Multielectron Reaction of Polyanionic Cathodes Toward High-Energy Calcium Rechargeable Batteries AbstractPolyanionic cathode materials with robust structural stability and large Ca2+ diffusion channels have aroused great interest in propelling the development of calcium-ion batteries (CIBs). However, polyanionic cathodes usually e..

작성자 최고관리자 작성일 2026-01-12
188

EMRL [EMRL] Prof. Kyu-Young Park: Origin of Double Ligand Holes and Abnormal Inductive Effect of np6 Elements in Ni-rich Cathodes AbstractNi-rich cathodes stand out for their ability to achieve high energy density in Li-ion batteries. However, their long-term cycling stability is challenged by excessive oxygen redox activity, the fundamental atomic-scale behavior of w..

작성자 최고관리자 작성일 2026-01-12
187

EMRL [EMRL] Kyu-Young Park: Incorporation of high-valence dopants in primary particles for strain-resistive Co-free high-Ni LiNi0.9Mn0.1O2 cathodes AbstractCo-free high-Ni cathode materials, which offer advantages such as high energy density and low cost, exhibit unsatisfactory cyclic life due to severe c-lattice distortion during cycling. In existing doping strategies, charge imbalanc..

작성자 최고관리자 작성일 2026-01-12
186

EMRL [EMRL] Prof. Kyu-Young Park: Understanding cross-talk–induced anode slippage in high-voltage mid-Ni NCM/graphite full cells ABSTRACTWhile high-voltage operation of mid-Ni layered oxide cathodes in full-cell Li-ion batteries is essential for achieving high energy density, it inevitably accelerates electrode degradation, ultimately resulting in capacity loss. Howe..

작성자 최고관리자 작성일 2026-01-12
185

EMRL [EMRL] Prof. Kyu-Young Park: Elucidating and controlling phase integration factors in Co-free Li-rich layered cathodes for lithium-ion batteries AbstractLi- and Mn-rich layered oxides (LLOs) with a Co-free composition are promising candidates for next-generation cathodes in low-cost and high-energy-density lithium-ion batteries. Despite their potential, the commercialization of Co-f..

작성자 최고관리자 작성일 2026-01-12
184

EMRL [EMRL] Prof. Kyu-Young Park: Water-based Pickering emulsion for concurrent washing and CNT coating of high-nickel layered lithium-ion cathodes AbstractHigh-nickel layered oxide cathodes have gained prominence in lithium-ion battery systems due to their exceptional energy density. However, their unstable surface chemistry and the need for excess lithium precursor during synthesis r..

작성자 최고관리자 작성일 2026-01-12
183

EMRL [EMRL] Prof. Kyu-Young Park: Enhancing Mechanical Resilience in Li-Ion Battery Cathodes with Nanoscale Elastic Framework Coatings AbstractClick to copy section linkLattice volume changes in Li-ion batteries active materials are unavoidable during electrochemical cycling, posing significant engineering challenges from the particle to the electrode level. In this study,..

작성자 최고관리자 작성일 2026-01-12
182

EMRL [EMRL] Prof. Kyu-Young Park: Understanding mechanical failure behaviours and protocol optimization for fast charging applications in Co-free Ni-based cathodes for lithium-ion batteries AbstractCurrently, it is a significant challenge to achieve long-term cyclability and fast chargeability in lithium-ion batteries, especially for the Ni-based oxide cathode, due to severe chemo-mechanical degradation. Despite its importance..

작성자 최고관리자 작성일 2026-01-12
181

EMRL [EMRL] Prof. Kyu-Young Park: Balancing Layered Ordering and Lattice Oxygen Stability for Electrochemically Stable High-Nickel Layered Cathode for Lithium-ion Batteries   AbstractDespite the high-capacity nature of high-nickel cathode materials, achieving their practical implementation is challenging due to the susceptibility of atomic arrangement to calcining conditions. Extensive studies have enlightened t..

작성자 최고관리자 작성일 2026-01-12
180

EMRL [EMRL] Prof. Kyu-Young Park: Realizing Li Concentration and Particle Size Gradients in Ni-Rich Cathode for Superior Electrochemical Performance in Oxygen-Deficient Atmospheres AbstractTo extend the lifespan of Ni-rich layered oxide cathodes, doping, coating, and particle-morphology optimization strategies have been explored, though these approaches often result in reduced reversible capacity. In this study, a nov..

작성자 최고관리자 작성일 2026-01-12
179

EMRL [EMRL] Prof. Kyu-Young Park: Interfacial and Structural Evolution of LiMn2O4 in an Ionogel Electrolyte Revealed by In Operando X-ray Scattering AbstractIonogels, electrolytes containing an ionic liquid and a solid matrix, show potential for enhancing Li-ion battery performance and versatility. Such composite materials offer tunable mechanical properties with the advantages of ionic..

작성자 최고관리자 작성일 2026-01-12
178

EMRL [EMRL] Prof. Kyu-Young Park: KxVPO4F (x∼0): A New High-Voltage and Low-Stain Cathode Material for Ultrastable Calcium Rechargeable Batteries AbstractThe utilization of high-voltage intercalation cathodes in calcium-ion batteries (CIBs) is impeded by the substantial size and divalent character of Ca2+ ions, which result in pronounced volume alterations and sluggish ion mobil..

작성자 최고관리자 작성일 2026-01-12
177

EMRL [EMRL] Prof. Kyu-Young Park: Deciphering Anion-Modulated Solvation Structure for CalciumIntercalation into Graphite for Ca-Ion Batteries AbstractCo-intercalation reactions make graphite a feasible anode in Ca ion batteries, yet the correlation between Ca ion intercalation behaviors and electrolyte structure remains unclear. This study, for the first time, elucidates the pivo..

작성자 최고관리자 작성일 2026-01-12

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