A5078955642- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced battery technologies research
- Perovskite Materials and Applications
- Nanomaterials and Printing Technologies
- ZnO doping and properties
- Organic Electronics and Photovoltaics
- Thin-Film Transistor Technologies
- Extraction and Separation Processes
- Copper-based nanomaterials and applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Ionic liquids properties and applications
- Advanced Memory and Neural Computing
- Thermal Expansion and Ionic Conductivity
- Nanomaterials for catalytic reactions
- Electrochemical Analysis and Applications
- Neuroscience and Neural Engineering
- Analytical Chemistry and Sensors
- Wireless Power Transfer Systems
- Electrocatalysts for Energy Conversion
- Neural Networks and Reservoir Computing
Kyungpook National University
2019-2025
Government of the Republic of Korea
2015-2020
Seoul National University of Science and Technology
2014-2019
Advanced Institute of Convergence Technology
2015-2019
Samsung (South Korea)
2019
Seoul National University
2014-2018
University of Seoul
2015-2018
Seoul Institute
2016-2017
Chung-Ang University
2006-2012
Tohoku University
2006
Evaporation-induced electricity generation, harnessing natural vaporization of water, is spotlighted as a promising energy conversion system with showing off remarkable characteristics such continuous generation without artificial water motions. However, the vague origin and mechanism this phenomenon are obstacles for practical application. Herein, evaporation-induced was verified in terms "ionovoltaic" effect, ionic motion-induced charge carrier flows, through resistance-controllable metal...
Electrolyte-gated transistors (EGTs) are promising candidates as artificial synapses owing to their precise conductance controllability, quick response times, and especially low operating voltages resulting from ion-assisted signal transmission. However, it is still vague how ion-related physiochemical elements working mechanisms impact synaptic performance. Here, address the unclear correlations, we suggest a methodical approach based on electrochemical analysis using poly(ethylene oxide)...
In this work, a whole manufacturing process of the curved copper nanowires (CCNs) based flexible transparent conductive electrode (FTCE) is reported with all solution processes, including synthesis, coating, and networking. The CCNs high purity good quality are designed synthesized by binary polyol coreduction method. reaction, volume ratio reaction time significant factors for successful synthesis. These have an average 50 nm in width 25–40 μm range length structure softness. Furthermore,...
Oxidation-resistant copper nanowires (Cu NWs) are synthesized by a polyol reduction method. These Cu NWs show excellent oxidation resistance, good dispersibility, and have low sintering temperature. A NW-based flexible, foldable, free-standing electrode is fabricated filtration process. The also exhibits high electrical conductivity even bending, folding, free-standing.
Abstract Li metal, which has a high theoretical specific capacity and low redox potential, is considered to the most promising anode material for next‐generation ion‐based batteries. However, it also exhibits disadvantageous solid electrolyte interphase (SEI) layer problem that needs be resolved. Herein, an advanced separator composed of reduced graphene oxide fiber attached aramid paper (rGOF‐A) introduced. When rGOF‐A applied, F − anions, generated from decomposition LiPF 6 during SEI...
Abstract Anode‐free Li metal batteries (AFLMBs) are highly advantageous due to their high energy density, low cost, and simple fabrication. However, severe challenges, such as uncontrolled dendrite formation coulombic efficiency, restrict practical application. Herein, this work introduces a silver nanoparticles incorporated p‐doped conjugated polymer (Ag‐PCP) wetting agent on the copper current collector, which promotes both uniform nucleation rapid of LiF‐rich solid electrolyte interphase...
Composite solid electrolytes (CSEs) are newly emerging components for all-solid-state Li-metal batteries owing to their excellent processability and compatibility with the electrodes. Moreover, ionic conductivity of CSEs is one order magnitude higher than polymer (SPEs) by incorporation inorganic fillers into SPEs. However, advancement has come a standstill unclear Li-ion conduction mechanism pathway. Herein, dominating effect oxygen vacancy (Ovac ) in filler on demonstrated via...
Nanoporous anodic aluminium oxide (AAO) enables the direct utilization of lithium metal as an ideal anode, owing to a uniform current distribution. The electrochemical performance AAO separator is superior commercial polypropylene, in terms ionic conductivity, discharge capacity, and capacity fading.
Due to the extremely high energy density of Li metal, metal batteries are regarded as one most promising candidates for next-generation storage systems. However, interfacial issues, particularly unstable solid electrolyte interphase (SEI) and lithium dendritic growth, hinder practical application. Herein, we induce an anion-rich interface near by introducing positively charged self-assembled monolayers (SAMs) on ceramic-coated separators simultaneously stabilize SEI homogenize deposition....
Although research on the ceramic-polymer interface has been conducted in field of composite solid electrolytes (CSEs), its principles have not clearly identified. In this work, Li ion conduction mechanism at a level where ionic conductivity matrix is similar to that filler studied. addition, oxygen vacancies (O-v) surface are filled through ultraviolet ozone (UVO) process confirm difference because interphase. When O-v concentration reduced, electrolyte increases compared existing...
Abstract With the increasing demand for safe all‐solid‐state lithium metal batteries (ASSLMBs), preventing Li‐filament formation has become a critical issue in inorganic solid‐electrolytes (ISEs). Fundamentally, uniformizing electronic properties at microstructure is key to reduction of Li‐ions, which strongly induces formation. However, little information on ISEs makes interpreting source difficult. Herein, mechanism revealed by confirming that work function differences interface between...
Ionic liquid electrolytes (ILEs) provide promising thermal and electrochemical stability characteristics for safer lithium metal batteries (LMBs). However, their development faces challenges due to low ionic conductivity poor...
4 V-operated all solid symmetrical supercapacitors that employ mixtures of various weight compositions with c-P<sub>4</sub>VPh and EMITFSI electrolytes have been demonstrated characterized.