Gichan Jeon

Regulating Mechanical Fractures and Surface Reactivities to Achieve High Electrochemical Stability in Ni‐Rich Cathodes With Boron and Tin

Hyungkwon Jeon, Gichan Jeon, H Lee, Nguyen Duc Quang et autres

Nickel‐rich layered oxides (LiNi x Co y Mn 1‐ x ‐ y O 2 , x > 0.8) are leading cathode materials for high‐energy‐density lithium‐ion batteries (LIBs). However, mechanical fracturing at both intergranular and intragranular levels, induced by anisotropic lattice strain during …

kr, Éthiopie, Soudan (code pays fourni par la source)

Leveraging Inter‐Bundle Anchoring Effect to Induce Static and Dynamic Twist‐Stability in Multifunctional Carbon Nanotube Coiled Yarn Hydro‐Actuators

Jae Myeong Lee, Gichan Jeon, Wonkyeong Son, Sungwoo Chun et autres

Abstract Carbon nanotube (CNT) coiled yarns have revolutionized 1D yarn actuators. However, their intrinsic twist‐instability poses significant challenges, limiting their practical applicability. In this study, static and dynamic twist‐stability are imparted to CNT coiled‐yarn hydro‐actuators by leveraging the inter‐bundle anchoring effect. An …

kr (code pays fourni par la source)

Electromechanical stability, electrochemical energy storage, and mechano-electrochemical energy harvesting of carbon nanotube buckles

Seongjun Yu, Wonkyeong Son, Gichan Jeon, Jeeeun Kim et autres

kr (code pays fourni par la source)

Twist-Stabilized, Coiled Carbon Nanotube Yarns with Enhanced Capacitance

Wonkyeong Son, Sungwoo Chun, Jae Myeong Lee, Gichan Jeon et autres

Coil-structured carbon nanotube (CNT) yarns have recently attracted considerable attention. However, structural instability due to heavy twist insertion, and inherent hydrophobicity restrict its wider application. We report a twist-stable and hydrophilic coiled CNT yarn produced by the facile electrochemical oxidation (ECO) method. …

kr (code pays fourni par la source)