Yoon‐Cheol Ha

ORCID: 0000-0001-5769-1461
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About
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Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Advanced Battery Technologies Research
  • Viral gastroenteritis research and epidemiology
  • Animal Virus Infections Studies
  • Virus-based gene therapy research
  • Advanced battery technologies research
  • Concrete Corrosion and Durability
  • Microbial infections and disease research
  • Extraction and Separation Processes
  • Viral Infections and Immunology Research
  • Energetic Materials and Combustion
  • Thermal Expansion and Ionic Conductivity
  • Veterinary medicine and infectious diseases
  • Smart Materials for Construction
  • Semiconductor materials and devices
  • Diabetes and associated disorders
  • Anodic Oxide Films and Nanostructures
  • Supercapacitor Materials and Fabrication
  • High-Velocity Impact and Material Behavior
  • Influenza Virus Research Studies
  • Helicobacter pylori-related gastroenterology studies
  • Concrete and Cement Materials Research
  • Probiotics and Fermented Foods
  • Railway Systems and Energy Efficiency

Korea Electrotechnology Research Institute
2016-2025

Korea University of Science and Technology
2018-2025

Korea University
2018-2024

Ningxia University
2024

Seoul National University
1999-2018

Duke University
2013-2015

Durham Technical Community College
2014

Cheonan Yonam College
2012

Korea National Institute of Health
2011

Korea Disease Control and Prevention Agency
2010

This communication presents a way to produce copper nanowires with aspect ratios as high 5700 in 30 min, and describes the growth processes responsible for their formation. These were used make transparent conducting films transmittance >95% at sheet resistance <100 Ω sq(-1).

10.1039/c3cc48561g article EN Chemical Communications 2013-12-09

Challenges in the commercialization of all solid-state and next-generation batteries including strategies, key points, application batteries.

10.1039/d3qm01171b article EN cc-by-nc Materials Chemistry Frontiers 2024-01-01

All-solid-state lithium batteries (ASSLBs) based on sulfide solid electrolytes (SEs) have received great attention because of the high ionic conductivity SEs, intrinsic thermal safety, and higher energy density achievable with a Li metal anode. However, studies practical slurry-cast composite electrodes show an extremely limited battery performance than binder-free pelletized poor interfacial robustness between active materials SEs by presence polymeric binder. Here, we employ...

10.1021/acsami.8b11244 article EN ACS Applied Materials & Interfaces 2018-08-27

Abstract With the timely advent of electric vehicle era, where battery stability has emerged as a major issue, all‐solid‐state batteries (ASSBs) have attracted significant attention game changer owing to their high stability. However, despite introduction densely packed solid electrolyte (SE) layer, when Li is used increase energy density cell, short‐circuit problem caused by protrusion unavoidable. Furthermore, most strategies control nonuniform growth are so complicated that they hinder...

10.1002/advs.202103826 article EN Advanced Science 2021-11-21

This article reports the fabrication of copper–platinum core–shell nanowires by electroplating platinum onto copper nanowires, and first demonstration their use as a transparent, conducting electrocatalyst for hydrogen evolution reaction (HER).

10.1039/c4ee00211c article EN Energy & Environmental Science 2014-01-01

All-solid-state batteries (ASSBs) have lately received enormous attention for electric vehicle applications because of their exceptional stability by engaging all-solidified cell components. However, there are many formidable hurdles such as low ionic conductivity, interface instability, and difficulty in the manufacturing process, its practical use. Recently, carbon, one representative conducting agents, turns out to largely participate side reactions with solid electrolyte, which finally...

10.1002/smll.201900235 article EN Small 2019-04-08

This paper demonstrates that Cu 2 O nanoparticles form in the early stages of a solution‐phase synthesis copper nanowires, and aggregate to seeds from which nanowires grow. Removal ethylenediamine leads rapid formation octahedra. These octahedra are introduced as same nanowire improve yield 12% &gt;55%, enable independent control over length nanowires. Transparent conducting films made with different lengths examine effect aspect ratio on film performance.

10.1002/smll.201303005 article EN Small 2014-02-25

Abstract All‐solid‐state batteries (ASSBs) comprising solidified cathodes, electrolytes, and Li–metal anodes have attracted notable attention as promising future for electric vehicles owing to their exceptional stability expectation of achieving high energy density. However, its permanent operation has been hindered by Li dendrite growth, chemo–mechanical degradation, interfacial instability, leading exhaustion, increased resistance, internal short‐circuiting. Herein, the first time, authors...

10.1002/adfm.202108203 article EN Advanced Functional Materials 2021-10-12

Halide-doped sulfide solid electrolytes have attracted great attention due to their high lithium-ion conductivity, Li-metal compatibility, and deformability for use in all-solid-state Li batteries. Although the effects of halide mixing Li6PS5X Li4PS4X (X = halogen) are fully investigated, studies on origin remarkable increase ionic conductivity by dual doped Li7P2S8X I, Br) scarce. Here, we systematically investigate crystal phase evolution glassy matrix corresponding variation, revealing...

10.1021/acsaem.0c02321 article EN ACS Applied Energy Materials 2021-01-06

Plant extracts have been found to be effective in reducing microorganisms. This study evaluated antimicrobial activity of 12 plant against Salmonella Typhimurium, Escherichia coli O157:H7, and Listeria monocytogenes by using a disk diffusion assay, Syzygium aromaticum (clove) showed the highest inhibitory effect. To investigate efficacy clove extract that inactivates pathogens on lettuce, inoculated lettuce with S. E. L. was treated diluted or distilled water for 0, 1, 3, 5, 10 min. Clove...

10.1111/j.1750-3841.2010.01926.x article EN Journal of Food Science 2010-12-01

Abstract The low performance or high cost of commercially available conductive inks limits the advancement printed electronics. This article studies explosion metal wires in aqueous solutions as a simple, low-cost and environmentally friendly method to prepare metallic nanoparticles consisting Cu alloys for use affordable, highly inks. Addition 0.2 M ascorbic acid an medium prevented formation 2 O shells around allowed printing lines directly from these with no post-treatment. alloy were...

10.1038/srep18333 article EN cc-by Scientific Reports 2015-12-16

Development of a tangible solid state battery has received great attention but there are various engineering challenges to overcome, especially for the scalable processing and use Li metal anode. In order tackle these issues, we first evaluated electrochemical stability thio-LISICON electrolytes, i.e., Li10GeP2S12 (LGPS), Li7P3S11 (LPS), Li7P2S8I (LPSI), where glass-ceramic LPSI electrolyte showed superior compatibility with metal. Moreover, superionic conductivity 1.35 × 10−3 S/cm could be...

10.1149/2.0981805jes article EN Journal of The Electrochemical Society 2018-01-01

Abstract Instead of commercial lithium-ion batteries (LIBs) using organic liquid electrolytes, all-solid-state (ASSBs) employing solid electrolytes (SEs) are promising for applications in high-energy–density power and electric vehicles due to their potential improving safety achieving high capacity. Although remarkable progress SEs has been achieved resulted ionic conductivity, which now reaches values comparable those the typical use a slurry process fabrication conventional ASSBs...

10.1038/s41598-020-68885-4 article EN cc-by Scientific Reports 2020-07-17

The aim of these experiments was to investigate the potential antiviral effect Saccharomyces cerevisiae beta-glucan on pneumonia induced by swine influenza virus (SIV). Forty colostrum-deprived 5-day-old piglets were randomly divided into four groups 10. 20 pigs in 1 and 2 administered orally (50 mg/day/pig; En-Bio Technology Co., Ltd) for 3 days before SIV infection those 4 given culture medium/diluent alone. Groups inoculated intranasally with ml tissue fluid containing x 10(6) infective...

10.1111/j.1439-0450.2004.00732.x article EN Journal of Veterinary Medicine Series B 2004-03-01

Abstract Unlike commercial lithium‐ion batteries, the high cost and low ionic conductivity of solid electrolytes (SEs) continues to be a big hurdle in commercially available all‐solid‐state batteries (ASSBs). Rather than conventional dry‐process high‐energy ball milling processes, productive solution synthesis bulk‐type SEs is most crucial issue successful application high‐energy‐density ASSBs. In this study, way paved overcome for lithium phosphorus sulfide chloride (LPSCl) via readily...

10.1002/smtd.202100793 article EN Small Methods 2021-09-15
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