A5068101312- Noise Effects and Management
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Acoustic Wave Phenomena Research
- Advanced battery technologies research
- Thermal Expansion and Ionic Conductivity
- Vehicle Noise and Vibration Control
- Wind and Air Flow Studies
Zhengzhou University
2024-2025
The low ionic conductivity and high desolvation barrier are the main challenges for organic electrolytes in rechargeable metal batteries, especially at temperatures. general strategy is to couple strong-solvation weak-solvation solvents give balanced physicochemical properties. However, two described above cannot be overcome same time. Herein, we combine different kinds of weakly solvating with a very energy. Interestingly, synergy between can break locally ordered structure temperature...
Weakly solvating electrolytes (WSE) can favor reversible Na batteries at -40 °C for some extreme applications because of the low desolvation energy. However, it is challenging to enable lower temperatures. Herein, we uncover that ionic conductivity WSE reduces reaction kinetics -60 °C. Accordingly, a highly conductive weakly electrolyte (HCWSE) designed by introducing additives strongly solvents and dilution NaPF6. The additive dominate solvation sheath, increase dissociation NaPF6 fluidity...
The composite rubber reinforced with hollow glass microsphere (HGM) was a promising material for noise reduction, and its sound insulation mechanism studied based on an acoustic finite element simulation to gain the appropriate parameter certain constraint conditions. built model included air domain, polymer domain inorganic particles domain. of investigated through distributions pressure level. influences parameters transmission loss (STL) were researched one by one, such as densities HGM,...
A Helmholtz resonator (HR) with an embedded aperture is effective acoustic metamaterial for noise reduction in the low-frequency range. Its sound absorption property significantly affected by shape. Sound properties of HRs various tangent sectional shapes were studied a two-dimensional finite element simulation. The sequence resonance frequency from low to high was olive, common trapeziform, reverse dumbbell and rectangle. Meanwhile, those cross-sectional investigated three-dimensional...