A5086498392- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Advanced battery technologies research
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Supercapacitor Materials and Fabrication
- Electrochemical sensors and biosensors
- Fuel Cells and Related Materials
- Thermal Expansion and Ionic Conductivity
Samsung (South Korea)
2024
Pohang University of Science and Technology
2011-2017
Abstract The global energy crisis and an increase in environmental pollution the recent years have drawn attention of scientific community towards development efficient electrochemical devices. Polymers containing charged species potential to serve as electrolytes next‐generation devices achieving high ion transport properties these is key improving their efficiency. In this article, we explore ways improve solid polymer by focusing on use ionic liquids (ILs). application IL‐incorporated...
We present a facile synthetic route toward binder-free, highly-dispersed Ge nanoparticles in carbon matrices using one-step pyrolysis of self-assembled Ge-polymer hybrids. 3-Dimensionally arranged Ge-carbon exhibits remarkably enhanced cycling properties and rate capability compared with sheathed lacking organization.
We have explored new Li–polymer batteries composed of surface functionalized Si nanoparticles (SiNPs) as anode active materials and nanostructured block copolymers solid electrolytes. Surface protection SiNPs with poly(ethylene oxide) chains successfully prevents aggregation during cycling also helps fast Li+ transport to the centers in anodes. The self-assembly nature copolymer electrolytes ca. 50 nm periodicity is aimed restrain formation macroscopic ionic clusters Li-insertion/desertion....
We report a unique, highly conductive, dendrite-inhibited, solid-state polymer electrolyte platform that demonstrates excellent battery performance at subzero temperatures. A design based on functionalized inorganic nanoparticles with interconnected mesopores contain surface nitrile groups is the key to this development. Solid-state hybrid electrolytes succinonitrile (SN) and porous were fabricated via simple UV-curing process. SN effectively confined within mesopores. This stimulated...
To significantly reduce the charging time of commercial lithium-ion batteries (LIBs), it is essential to control surface properties graphite anodes because process involves sluggish interfacial kinetics between and electrolyte. For effective modification graphite, herein we demonstrate decoration with titanium carbide (TiC) nanocrystals onto particles via a simple wet-coating process. The high electrical conductivity, low Li+ adsorption energy, small diffusion barrier TiC facilitate fast...
We developed a new ratiometric pH sensor based on poly(N-phenylmaleimide) (PPMI)-containing block copolymer that emits three different fluorescent colors depending the pH. The strong solvatochromism and tautomerism of PPMI derivatives enabled precise sensing for almost entire range scale. Theoretical calculations have predicted largely dissimilar band gaps keto, enol, enolate tautomers owing to low-dimensional conjugation effects. tunable emission wavelength intensity our sensors, as well...
We have developed a light-emitting material based on nonconjugated block copolymers that contain polystyrene sulfonate (PSS) chains. The confinement of the PSS chains within nanosized domains appeared to be powerful means achieving enhanced fluorescence signals. High quantum yield, with maximum value 37%, was obtained by adjusting types self-assembled morphologies PSS-containing copolymers; in contrast, yield merely 5% for homopolymer lacking organization. wavelength emission tunable...
Wiring of glucose oxidase (GOx) onto electrode surface was successfully achieved by cross-linked networks organometallic block copolymers comprising electroactive ferrocene moieties and chemically cross-linkable diene groups, poly(ferrocenyldimethylsilane-b-isoprene)s (PFS–PIs). Different nanoscale morphologies PFS–PIs, i.e., bicontinuous structure, nanowires, nanoparticles, have been derived varying molecular weights casting solvents. Upon examining catalytic current responses the GOx...
The concentration of PF 6 − anions within the electric double layer at electrode/electrolyte interface is increased by cobalt phosphide coating on surface synthetic graphite particles. This results in formation a LiF-rich SEI layer, enhancing fast-charging performance.