A5101866168- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Materials Characterization Techniques
- Advanced Battery Technologies Research
- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Thermal Expansion and Ionic Conductivity
- Magnetic properties of thin films
- Electron and X-Ray Spectroscopy Techniques
- Environmental remediation with nanomaterials
- Anodic Oxide Films and Nanostructures
- Electronic and Structural Properties of Oxides
- DNA and Nucleic Acid Chemistry
- Magnetic Properties of Alloys
- Inorganic Chemistry and Materials
- Multiferroics and related materials
- Advanced biosensing and bioanalysis techniques
- Conducting polymers and applications
- Arsenic contamination and mitigation
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Diamond and Carbon-based Materials Research
- Aluminum Alloy Microstructure Properties
Xi'an Jiaotong University
2023-2025
Ames National Laboratory
2016-2018
University of Nebraska–Lincoln
2017
University of California, Santa Barbara
2009-2011
While multitransition-metal layered oxides in the form of micrometer-sized single crystals and polycrystalline aggregates show great promise as affordable cathodes for sodium-ion batteries, relationship between a typical preferential facet well morphological domination electrochemical performance both forms remains unclear. In this regard, herein, two models O3-type NaNi1/3Fe1/3Mn1/3O2 (NFM) materials with single-crystalline characteristics were prepared. Based on situ X-ray diffraction...
The energy density of lithium-sulfurized polyacrylonitrile (Li-SPAN) batteries has chronically suffered from low sulfur content. Although a free-standing electrode can significantly reduce noncapacity mass contribution, the slow bulk reaction kinetics still constrain electrochemical performance. In this regard, novel electrochemically active additive, polypyrrole (PPy), is introduced to construct PAN nanotubes as carrier. This hollow channel greatly facilitates charge transport within and...
Large interfacial resistance is a widely recognized impediment to the advancement of high-voltage, all-solid-state batteries. However, comprehensive understanding fundamental cause behind between solid electrolytes and typical layered oxide cathodes has not yet been achieved. Here, we investigated high-voltage stability Li3InCl6 elucidated underlying electrochemical reactions LiCoO2 Li3InCl6. The pairing with exhibited superior capacity retention 73.6% even at 5.2 V, much higher than 28.2%...
The electrocatalytic activity of gold−platinum (Au−Pt) clusters was investigated in acidic and alkaline electrolytes. were synthesized by electrodeposition on fluorinated tin oxide (FTO) substrates carbon disks with dimensions from 50 to 200 nm. Methanol electrooxidation (fuel cell anode) oxygen electroreduction cathode) activities measured using cyclic voltammetry chronoamperometry. results for methanol showed that platinum could be partially substituted gold achieve higher resistance...
Aqueous halogen batteries are gaining recognition for large-scale energy storage due to their high density, safety, environmental sustainability, and cost-effectiveness. However, the limited electrochemical stability window of aqueous electrolytes absence desirable carbonaceous hosts that facilitate redox reactions have hindered advancement batteries. Here, a low-cost, high-concentration 26 m Li–B5–C15–O6 solution incorporating lithium bromide (LiBr), chloride (LiCl), acetate (LiOAc) was...
The broad temperature adaptability associated with the desolvation process remains a formidable challenge for organic electrolytes in rechargeable metal batteries, especially under low-temperature (LT) conditions. Although traditional approach involves utilizing high degree of anion participation solvation structure, known as weakly (WSEs), structure these is highly susceptible to fluctuations, potentially undermining their LT performance. To address this limitation, we have devised an...
The all-solid-state lithium battery (ASSLB) is widely regarded as one of the most promising systems for future owing to its high energy density and enhanced safety. However, spontaneous reaction between metal solid-state electrolytes (SSEs) results in formation dendrites, which impedes further progress use anodes ASSLBs. Li–In-based have been used address Li anode/SSE interfacial challenges; however, their synthesis cell fabrication compromise applicability Herein, we explore aluminum an...
We synthesized single-crystal ultrahigh-nickel layered cathodes with manipulated Co/Mn doping to reveal the correlation between crystal structural evolution and performance. Our study emphasizes importance of regulating structure constructing high-performance cathodes.
High-voltage (>4.35 V) lithium nickel–cobalt–manganese batteries are star candidates due to their higher energy density for next-generation power batteries. This poses demands electrolyte design, including compatibility with metals, stability on high-voltage cathodes, speedy interfacial ion transport kinetics, and appropriate concentration. However, electrolytes at the current level of research struggle balance these demands. Here, we took advantage reduced affinity Li+ enhanced oxidative...
In polymer electrolyte membrane fuel cells, voltage reversal is a significant challenge that leads to rapid degradation through catalyst deterioration, carbon corrosion, and platinum dissolution. To address this issue, we developed novel by depositing platinum–iridium (Pt–Ir) alloys onto phosphorus-modified, pyrolyzed ZIF-67 substrates. The phosphorus doping significantly enhanced the graphitization of substrate during thermal treatment improved binding between Pt–Ir alloy substrate, thereby...
Metal – DNA (M:DNA) nanohybrids have shown promise as functional nanomaterials in several practical applications. In this paper, electrochemical synthesis of metal is explored. First, ions (Mn+) are attached to the sugar phosphate backbone calf thymus DNA. The ion doped (Mn+:DNA) then deposited on a substrate by layer-by-layer deposition, drop casting or electrostatic deposition. This followed reduction form M: Ag+:DNA/Ag:DNA chosen model system perform in-depth study. Future directions for...
Gel electrolytes are a promising research direction due to their high safety. However, its poor room temperature conductivity along with complex preparation process hinder practical application. In this article, type of zwitterionic gel electrolyte is prepared by in situ polymerization. The introduction charged but nonmigrating copolymer the polymer chain beneficial dissociation lithium salt, improving ion transport on account. At temperature, reaches 9.1 × 10-4 S cm-1, which contributes...
ABSTRACT In recent decades, lithium‐ion batteries (LIBs) have been widely adopted for large‐scale energy storage due to their long cycle life and high density. However, the cost limited natural abundance of lithium highlight urgent need develop alternative devices, such as sodium‐ion (SIBs), which utilize abundant readily available resources. Among SIB cathode materials, P2‐phase Ni–Mn materials emerged commercially viable candidates because operating voltage, good specific capacity,...
Understanding architecture in materials down to atomic level is a key for design and fabrication of advanced as devices become smaller interfacial effects dominate performance.Aberration-corrected STEM (AC-STEM) combined with energy-loss energy-dispersive xray spectroscopic techniques (EELS EDS) provide the necessary quantitative elemental information sub-nanometer spatial resolution.Utilizing TEM holders, which can external during imaging process, including thermal, stress/strain, electric...