연구성과 3 페이지 | 포항공과대학교 친환경소재대학원

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연구성과

Total 216건 3 페이지

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
176

EMRL [EMRL] Prof. Kyu-Young Park: Toward a Nanoscale-Defect-Free Ni-Rich Layered Oxide Cathode Through Regulated Pore Evolution for Long-Lifespan Li Rechargeable Batteries AbstractNi-rich layered oxides are envisioned as the most promising cathode materials for next-generation lithium-ion batteries; however, their practical adoption is plagued by fast capacity decay originating from chemo-mechanical degradati..

작성자 최고관리자 작성일 2026-01-12
175

EMRL [EMRL] Prof. Kyu-Young Park: Comparison Study of a Thermal-Driven Microstructure in a High-Ni Cathode for Lithium-Ion Batteries: Critical Calcination Temperature for Polycrystalline and Single-Crystal… AbstractHigh-Ni layered oxide cathodes are promising candidates for lithium-ion batteries due to their high energy density. However, their cycle stability is compromised by the poor mechanical durability of the particle microstructure. In t..

작성자 최고관리자 작성일 2026-01-12
174

EMRL [EMRL] Prof. Kyu-Young Park: Re-evaluation of Battery-grade Lithium Purity Toward Sustainable Batteries AbstractRecently, the cost of lithium-ion batteries has risen as the price of lithium raw materials has soared and fluctuated. Notably, the highest cost of lithium production comes from the impurity elimination process to satisfy the batter..

작성자 최고관리자 작성일 2026-01-12
173

EMRL [EMRL] Prof. Kyu-Young Park: Scalable conversion of residual lithium into conformal artificial cathode electrolyte interphase via a single-step wet-chemical process for high-voltage Ni-rich cathode op… AbstractNi-rich layered oxide has become an indispensable cathode for incumbent lithium-ion batteries due to their high energy density and low cost. Despite these advantages, the Ni-rich cathode suffers from surface residual lithium, which ..

작성자 최고관리자 작성일 2026-01-12
172

EMRL [EMRL] Prof. Kyu-Young Park: 리튬 이차전지 용 고니켈계 층상형 산화물 양극 소재 연구동향

작성자 최고관리자 작성일 2026-01-12
171

EMRL [EMRL] Prof. Kyu-Young Park: Enhanced LiMn2O4 Thin-Film Electrode Stability in Ionic Liquid Electrolyte: A Pathway to Suppress Mn Dissolution AbstractClick to copy section linkSpinel-type lithium manganese oxide (LiMn2O4) cathodes suffer from severe manganese dissolution in the electrolyte, compromising the cyclic stability of LMO-based Li-ion batteries (LIBs). In addition to cau..

작성자 최고관리자 작성일 2026-01-12
170

EMRL [EMRL] Prof. Kyu-Young Park: Mitigating Pt loss in polymer electrolyte membrane fuel cell cathode catalysts using graphene nanoplatelet Pickering emulsion processing AbstractCarbon-supported Pt nanoparticles are the leading catalysts for the cathode oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells. However, these ORR catalysts suffer from poor electrochemical durability, partic..

작성자 최고관리자 작성일 2026-01-12
169

EMRL [EMRL] Prof. Kyu-Young Park: Characterizing and mitigating chemomechanical degradation in high-energy lithium-ion battery cathode materials AbstractClick to copy section linkConspectusLithium-ion batteries (LIBs) are nearly ubiquitous energy storage solutions, powering devices ranging from consumer electronics to electric vehicles. To advance these applications, current LIB res..

작성자 최고관리자 작성일 2026-01-12

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