A5077487617- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Extraction and Separation Processes
- Catalysts for Methane Reforming
- Fuel Cells and Related Materials
- Microbial Fuel Cells and Bioremediation
- Catalytic Processes in Materials Science
- Korean Urban and Social Studies
- Anaerobic Digestion and Biogas Production
- Migration, Ethnicity, and Economy
- Carbon Dioxide Capture Technologies
- Transition Metal Oxide Nanomaterials
- Asymmetric Hydrogenation and Catalysis
- Enzyme-mediated dye degradation
- COVID-19 impact on air quality
- Environmental Policies and Emissions
- Thermal Expansion and Ionic Conductivity
- Ammonia Synthesis and Nitrogen Reduction
- Microbial bioremediation and biosurfactants
- Chemical Synthesis and Characterization
- Enzyme Production and Characterization
Princeton University
2023-2024
Korea Testing Laboratory
2024
Korea Institute of Science and Technology
2015-2023
Chonnam National University
2020-2023
Gwangju University
2020-2021
Government of the Republic of Korea
2018-2021
Chonnam National University Hospital
2020-2021
Hanyang University
2016-2021
Korea Institute of S&T Evaluation and Planning
2020
Chungbuk National University
2019
Silicon has a great potential as an alternative to graphite which is currently used commercially anode material in lithium-ion batteries (LIBs) because of its exceptional capacity and reasonable working potential. Herein, low-cost scalable approach proposed for the production high-performance silicon-carbon (Si-C) hybrid composite anodes high-energy LIBs. The Si-C synthesized using microemulsion method by selecting silicon nanoparticles, corn starch biomass precursor finally conducting heat...
1,2-Dimethoxyethane (DME) has been widely used as an electrolyte solvent for lithium metal batteries on account of its intrinsic reductive stability; however, low oxidative stability presents a major challenge use in high-voltage Li (LMBs). In this direction, herein, we introduce new low-dielectric solvent, 1,2-dimethoxypropane (DMP), solvent. Compared to DME, DMP decreased solvation power owing increased steric effects, thus promoting anion–Li+ interactions. This controlled structure the 2...
Despite its highest theoretical capacity, the practical applications of silicon anode are still limited by severe capacity fading, which is due to pulverization Si particles through volume change during charge and discharge. In this study, nanoparticles embedded in micron-sized porous carbon spheres (Si-MCS) via a facile hydrothermal process order provide stiff framework that functions as cage hold pulverized pieces. The subsequently allows these pieces rearrange themselves restricted...
Nickel ferrite (NiFe2O4) has been previously shown to have a promising electrochemical performance for lithium-ion batteries (LIBs) as an anode material. However, associated processes, along with structural changes, during conversion reactions are hardly studied. Nanocrystalline NiFe2O4 was synthesized the aid of simple citric acid assisted sol-gel method and tested negative electrode LIBs. After 100 cycles at constant current density 0.5 A g-1 (about C-rate), provided stable reversible...
In this study, we synthesize a carbon-free anatase/bronze TiO2 microsphere (TiO2(A/B)-MS) via the solvothermal method and demonstrate its potential for use as high-performance anode material sodium-ion batteries. The highly compact structure of constructed from nanoprimary particles not only enhances structural stability subsequently leads to good cycling performance but also enables transport pathways Na+ ions electrons be shortened, ensuring fast Na-storage performance. addition, an...
Introduction of a hydrophobic crystalline carbon support enhances the performance AEMWE and improves corrosion resistance by reducing its interaction with water. This demonstrates promising potential utilizing support.
Abstract All solid‐state batteries are desirable for a range of energy storage applications which require high density. Achieving density in battery requires the operation an dense anode with composite cathode. Pores and/or voids within solid state cathode ion‐blocking and thus control over concentration distribution pores initial electrode cycled is desirable. This study provides understanding interplay between microstructure mechanics on active material utilization cathodes composed NCM...
Nitrogen-doped carbon is coated on lithium titanate (Li4Ti5O12, LTO) via a simple chemical refluxing process, using ethylenediamine (EDA) as the and nitrogen source. The process incorporates coating doped with relatively high amount of to form conducting network LTO matrix. introduction N dopants in matrix leads higher density C vacancies, resulting improved lithium-ion diffusion. uniform nitrogen-doped Li4Ti5O12 (CN-LTO) enhances electronic conductivity CN-LTO electrode corresponding...
This review provides a path to achieve economic, safe, and energy-efficient graphene composites as anode materials for high-energy sodium-ion batteries.
Abstract Potassium metal batteries (KMBs) coupled with layered transition oxides as cathode materials are a promising energy−storage technology owing to low cost and high capacity. However, uncontrollable dendritic growth in the K−metal anode chemical reactivity of oxide against electrolyte solution cause KMBs suffer from Coulombic efficiency, rapid capacity fading, critical safety issues. In this study, an engineering strategy is introduced by introducing adiponitrile (ADN) dual−functional...
Potassium (K) is considered to be the most suitable anode material for rechargeable K batteries because of its high theoretical capacity (686 mAh g–1) and low redox potential (−2.93 V vs SHE). However, uneven electrodeposition during cycling usually leads growth dendrites, resulting in Coulombic efficiency compromising battery safety. Herein, we develop a strategy stabilizing metal through simple interface control. The conductive passivation layer can controllably designed by spontaneous...
We developed an N-doped carbon material as a low-cost K-ion battery anode from sustainable coffee grounds via simple pyrolysis process. Combined with Prussian blue/graphene composite, the demonstrated practical acceptability.
Lithium reservoir-free solid-state batteries can offer exceedingly high energy densities for a range of emerging applications related to aviation and electric vehicles. However, reversible operation cells is plagued by degradation mechanisms. The morphology lithium metal film subsequent evolution during be highly variable dependent on the type solid electrolyte, current collector, operating conditions (current density, temperature, pressure, etc.). Here we evaluate vertical horizontal growth...
Among the next-generation photovoltaics (PVs), hybrid organic–inorganic perovskite solar cells (PeSCs) have drawn tremendous attention from both academic and industrial communities, because of their compelling combination high performance, cost-effectiveness, broader feasibility. Despite rapid growth importance scientific progress in PeSC field, there been no systematic bibliometric analyses research outputs. In this study, we systemically investigate publications PeSCs with routes to map...
NiCo2O4 nanoparticles (5-10 nm) were prepared by a simple sol-gel method and evaluated in the Li/Na-cell as an anode. The anode exhibited excellent lithium storage capacity (1050 860 mAh g−1 at specific currents of 0.1 0.5 A g−1, respectively) outstanding cycling performance over 200 cycles. However, it showed moderate sodium with poor cycle retention. clear comparison structural stability electrode determined via cross-sectional scanning electron microscopy (SEM) micrographs indicates...
The effect of the 4d Ru element in P2-Na0.6[Mg0.2Ru0.2Mn0.6]O2 is investigated. Ru-free Na0.6[Mg0.2Mn0.8]O2 activated with Mn3+/Mn4+ redox, after which charge compensated by sluggish oxidation lattice oxygen (O2–) to O2n– triggered evolution O2 from oxide lattice. These effects are generally unfavorable and result poor long-term cycle stability induced irreversible migration Mg2+ transition metal (TM) Na layers P2 structural framework. Benefiting covalent bonded O TM layers, Mg reversibly...
A porous dandelion-like mico-nanostructured Zn<sub>x</sub>Co<sub>3−x</sub>O<sub>4</sub> was synthesized which demonstrated excellent sodium storage capability and capacity retention.