A5039948249- Advancements in Battery Materials
- Engineering Applied Research
- Hydraulic and Pneumatic Systems
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Mechanical Engineering and Vibrations Research
- Nuclear reactor physics and engineering
- Tribology and Wear Analysis
- GaN-based semiconductor devices and materials
- Perovskite Materials and Applications
- Extraction and Separation Processes
- Conducting polymers and applications
- Thermal Radiation and Cooling Technologies
- Cavitation Phenomena in Pumps
- Tribology and Lubrication Engineering
- Oil and Gas Production Techniques
- Lubricants and Their Additives
- Nuclear Materials and Properties
- Marine and Coastal Research
- Spacecraft and Cryogenic Technologies
- Quantum Dots Synthesis And Properties
- Vehicle Noise and Vibration Control
- Mechanical Failure Analysis and Simulation
- Structural Integrity and Reliability Analysis
- Metal Alloys Wear and Properties
Ulsan National Institute of Science and Technology
2022-2024
Korea Atomic Energy Research Institute
2014-2023
Seoul National University
2021-2023
Kyung Hee University
2020-2022
University of Ulsan
2016-2017
Jeonbuk National University
2016
Chonbuk National University Hospital
2016
Jeonju University
2016
Government of the Republic of Korea
2016
Soonchunhyang University
2016
Abstract Near-eye display technology is a rapidly growing field owing to the recent emergence of augmented and mixed reality. Ultrafast response time, high resolution, luminance, dynamic range for outdoor use are all important non-pixelated, pupil-forming optics. The current mainstream technologies using liquid crystals organic materials cannot satisfy these conditions. Thus, finely patterned light-emissive solid-state devices with integrated circuits often proposed meet requirements. In...
During solid-state calcination, with increasing temperature, materials undergo complex phase transitions heterogeneous reactions and mass transport. Precise control of the calcination chemistry is therefore crucial for synthesizing state-of-the-art Ni-rich layered oxides (LiNi1-x-y Cox Mny O2 , NRNCM) as cathode lithium-ion batteries. Although battery performance depends on chemical heterogeneity during NRNCM it has not yet been elucidated. Herein, through synchrotron-based X-ray,...
Synthesis of various earth-abundant electroactive materials in gram-scale via simple methods with excellent efficiency can effectively reduce the cost. In this context, we have demonstrated a synthesis α-Fe2O3@rGO [email protected] nanocubes direct solution route. By concept charge-charge interactions, successfully wrapped reduced graphene oxide (rGO) over surface α-Fe2O3 resulting formation gram-scale. The synthesized were characterized by group analytical and finally explored as an...
The fire condition of lithium-ion batteries is satisfied by fulfilling three elements. Through the concept Water-in-Battery (WiB), can be suppressed controlling these elements via direct water penetration into cell, reducing temperature and blocking oxygen.
Lithium-ion batteries (LIBs) have emerged as the most commercialized rechargeable battery technology. However, their inherent property, called thermal runaway, poses a high risk of fire. This article introduces “Battery Immersed in Fire Prevention Material (BIF)”, immersion-type which all LIB cells are surrounded by liquid agent. structure and agent enable active fire suppression under abusive conditions while facilitating improved management during normal operation. Abuse tests involving...
Forming metal contact with low resistance is essential for the development of electronics based on layered van der Waals materials. ReS2 a semiconducting transition dichalcogenide (TMD) an MX2 structure similar to that MoS2. While most TMDs grow parallel substrate when synthesized using chemical vapor deposition (CVD), tends orient itself vertically during growth. Such feature drastically increases surface area and exposes chemically active edges, making attractive material energy sensor...
Here, we report a facile and efficient sequential n-doping method to increase the device performance of planar-type organic/inorganic perovskite solar cells.
CSPACE (Core meltdown, Safety and Performance Analysis CodE for nuclear power plants) a simulation of severe accident progression in Pressurized Water Reactor (PWR) is developed by coupling verified system thermal hydraulic code SPACE (Safety core damage COMPASS Meltdown Progression Accident Simulation Software). responsible the description fluid state nodes, while prediction mechanical responses fuels reactor vessel heat structures. New transfer models to each phase fluid, flow blockage,...
In all-solid-state batteries (ASSBs), (electro)chemo-mechanical aspects such as uneven interfaces, cathode-electrolyte interphase formation, delamination, fracture, defects, etc., are the major factors in capacity fade but remain largely unknown. Nonhomogeneous transfer of lithium ions can cause significant variations strain and stress within battery electrodes, leading to degradation performance. pathway associated strain/stress field become more intricate due reaction at...
A newly developed code CINEMA is exercised for simulations of severe accident progressions in OPR1000 nuclear power plant. Large Break Loss Coolant (LBLOCA) and Station Black Out (SBO) initiated accidents are selected to cover a wide range progression terms the system pressure, amount core damage, fission product release. The effects mitigation actions by operator also considered. In parallel, independent MAAP5 carried out results compared with those CINEMA. Qualitative quantitative...
The wear characteristics of metal ball and seat in a metal-seated valve significantly affect the performances such as leakage torque. In this work, are experimentally investigated. A stainless steel with high corrosion-resistant coating prepared component level test was performed. hardness surface roughness specimens cut from measured before after using micro-Vickers tester confocal microscopy, respectively. order to assess characteristics, surfaces carefully examined test. microscope data...