Publications by authors named "Wenyong Yuan"
Article Synopsis
- Layered oxides like NaLiMnO (NLMO) are promising for sodium-ion batteries due to their high capacity, but they face challenges like rapid capacity loss and slow reaction rates due to oxygen release and structural changes.
- A new approach combining crystal-facet modification and fluorinated electrolyte engineering led to the design of single-crystal NLMO{010}, which shows enhanced redox kinetics, achieving a capacity of 272.4 mAh/g and excellent cycling performance with only 0.27 mV capacity fade per cycle after 400 cycles.
- The use of N-Fluorobenzenesulfonimide (NFBS) as an electrolyte additive creates durable protective interfaces and helps
Polypyrrole-coated sodium manganate microspheres cathode for superior performance Sodium-ion batteries.
J Colloid Interface Sci
November 2024
Article Synopsis
- P2-NaMnNiO is recognized as a cost-effective and non-toxic cathode material for sodium ion batteries, but it faces issues with cycling stability due to the Jahn-Teller effect and electrolyte decomposition.
- Researchers developed a composite, P2-NaNiMnO@PPy, by coating NNMO microspheres with conductive polypyrrole (PPy) to enhance performance, which was confirmed through various characterization techniques.
- The best performing composite, NNMO@PPy-9, exhibited impressive capacity retention and rate performance, alongside a full cell that achieved a high energy density and superior cycling stability, suggesting that PPy coatings could be a promising method to enhance sodium ion battery materials.
Solid-state sodium-ion batteries have attracted significant attention due to their rich resources, high safety, and high energy density. However, the lower ionic conductivity and inferior interfacial contact between solid-state electrolytes (SSEs) and electrodes limit their practical applications. Herein, polyvinylideneuoride-co-hexauoropropylene (PVDF-HFP) membrane is selected and a novel sandwiched composite PVDF-HFP/NaZrCeSiPOF/PVDF-HFP (G-NZC0.
View Article and Find Full Text PDFTo investigate the relationship between starch hydrolysis and pigments (MPs) production, the α-amylase gene () from was heterologously expressed in CICC41233, and we obtained a positive transformant named Amy9. In Amy9, the α-amylase activities were 6.65- and 4.
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