A5100362023- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Molecular Sensors and Ion Detection
- Advancements in Semiconductor Devices and Circuit Design
- Hydrogels: synthesis, properties, applications
- Supramolecular Self-Assembly in Materials
- Electrochemical sensors and biosensors
- Real-time simulation and control systems
- Graphene research and applications
- Semiconductor materials and devices
- Transition Metal Oxide Nanomaterials
- Advanced Drug Delivery Systems
- Advanced battery technologies research
- Semiconductor materials and interfaces
- Power Systems and Renewable Energy
- Analytical Chemistry and Sensors
- Nanocomposite Films for Food Packaging
- Fiber-reinforced polymer composites
- Electron and X-Ray Spectroscopy Techniques
- Wind Turbine Control Systems
- Lanthanide and Transition Metal Complexes
Guangdong University of Technology
2015-2025
North China University of Science and Technology
2024
Fuji Electric (Japan)
2024
Abstract: Silicon oxide (SiOx), due to its significant reversible capacity and significantly reduced volume expansion compared pure silicon, holds promise as a candidate for high‐performance lithium‐ion battery anode materials. Unfortunately, SiOx still faces challenges commercialization exceeding 160%, low initial coulombic efficiency, electrical conductivity. In this study, we employed metal oxides containing Ti Sn dope SiOx/C materials, utilizing sol‐gel method prepare SiOx/TiO2/SnO2/C...
The FeF3·0.33H2O cathode material can exhibit a high capacity and energy density through transfer of multiple electrons in the conversion reaction has attracted great attention from researchers. However, low conductivity greatly restricts its application. Generally, carbon nanotubes (CNTs) graphene be used as conductive networks to improve conductivities active materials. In this work, was synthesized via liquid-phase method, FeF3·0.33H2O/CNT + nanocomposite successfully fabricated by...
Herein, silicon carbide (SiC)-doped hydrated salt phase change nanocapsules (NePCMs) with enhanced thermal conductivity and nonflammability were synthesized using a simple method for battery management systems (BTMs). The additional amount of SiC played critical role in the heat capacities nanocapsules. resultant have latent over 145.6 kJ/kg, good encapsulation around 60%, 0.51 W m–1 K–1, as well leak-proof property cycle stability. More importantly, due to perfect core–shell structure,...
A Cr3+ and F− composite-doped LiNi0.5Mn1.5O4 cathode material was synthesized by the solid-state method, influence of doping amount on material’s physical electrochemical properties investigated. The structure morphology were characterized XRD, SEM, TEM, HRTEM, results revealed that sample exhibited clear spinel features. No impurity phases found, became more stable. charge/discharge tests, cyclic voltammetry (CV), impedance spectroscopy (EIS) test suggested LiCr0.05Ni0.475Mn1.475O3.95F0.05...
To investigate the effect of Ce doping on structure and electrochemical properties spinel LiNi0.5Mn1.5O4, especially cycling performance at high temperature, cathode materials LiNi0.5-0.5xMn1.5-0.5xCexO4 (x = 0, 0.01, 0.02, 0.03) were prepared by sol-gel method for use in lithium ion batteries. For this purpose a half-cell was assembled with metal anode full-cell paired graphite. The characterization analysis composites revealed that all samples had disordered octahedron structure, purity...
A sol-gel method was adopted to obtain LiNi0.5-xGaxMn1.5O4 (x = 0, 0.04, 0.06, 0.08, 0.1) samples. The effect of Ga doping on LiNi0.5Mn1.5O4 and its optimum content were investigated, the electrochemical properties at room temperature a high discussed. structural, morphological, vibrational features compounds characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR). XRD results demonstrate that all samples have disordered...
ᅟ: Ag-coated spherical Li4Ti5O12 composite was successfully synthesized via a sol-gel-assisted hydrothermal method using an ethylene glycol and silver nitrate mixture as the precursor, influence of Ag coating contents on electrochemical properties its extensively investigated. X-ray diffraction (XRD) analysis indicated that does not change spinel structure Li4Ti5O12. The impedance spectroscopy (EIS) analyses demonstrated excellent electrical conductivity Li4Ti5O12/Ag resulted from presence...
Abstract A series of cathode materials, Li[Ni 0.6 Co 0.12 Mn 0.2 Fe 0.08 ] 1‐x Cr x O 2 (x=0, 0.02, 0.04, 0.06), are synthesized via the co‐precipitation method. Structural characterization shows that 3+ ions successfully incorporated into material structure and evenly dispersed on surface crystal particles with other metal elements. The Cr‐doped a well‐defined hexagonal layered less cation mixing, increase in interionic interlayer distances is beneficial for transport lithium ions. Compared...
<title>Abstract</title> With the vigorous development of new energy vehicles, cobalt in traditional lithium-ion(Li-ion) battery industry chain is obviously short supply. To manage this challenge, a free cathode material Li[Ni<sub>0.8</sub>Fe<sub>0.1</sub>Al<sub>0.1</sub>]<sub>1-x</sub>Mg<sub>x</sub>O<sub>2-y</sub>F<sub>y</sub> (x=0.01, y=0.01, 0.02, 0.03) with different f-doping contents (labeled Mg-1, Mg-F-1, Mg-F-2, Mg-F-3) was prepared by sol-gel method. XRD results show that co-doping...
Abstract Silicon oxides (SiO x ) have received extensive attention as a promising anode candidate for next‐generation lithium‐ion batteries (LIBs). However, their commercial applications been seriously hindered by low conductivity, large volume expansion, and unstable solid‐electrolyte interface (SEI) layer, which result in initial coulombic efficiency, poor rate performance, short cycling lifespan. In this work, we demonstrated simple way to prepare series of SiO materials with lithium...
Firstly, chitosan-gallic acid derivative (GA-CS) was prepared by reacting chitosan (CS) with gallic (GA), which combined (CM) modified methacrylic anhydride (MA) acylation as an antibacterial modifier, and the composite hydrogel light curing. The mechanical properties, swelling rate, surface contact angle, water retention micromorphology of were tested to explore effect GA-CS on hydrogel. results showed that compressive strength 225kPa, addition antimicrobial monomer GA-CS, rate increased....
Carbon-doped LiFePO 4 /C cathode materials for lithium power batteries were prepared by liquid-state precipitation reaction. Their properties studied using XRD, SEM, elemental analysis, FTIR and A.C. impedance tests. The results showed that the samples with olivine structure 3.4V discharge platform. tapped density of sample could reach 1.42g/cm 3 , it had an initiate capacity 144.6mAh/g at 0.2C, 93.2% which remained after 20 cycles. first specific is 133.5mAh/g 10C decreased 8.76%