A5100414478- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- MXene and MAX Phase Materials
- Dielectric materials and actuators
- Advanced Sensor and Energy Harvesting Materials
- Ferroelectric and Piezoelectric Materials
- Electromagnetic wave absorption materials
- Transition Metal Oxide Nanomaterials
- Advanced Thermoelectric Materials and Devices
- Thermal Radiation and Cooling Technologies
- Semiconductor materials and interfaces
- Thermal Expansion and Ionic Conductivity
- Electrocatalysts for Energy Conversion
- Magnetic Properties and Synthesis of Ferrites
- Perfectionism, Procrastination, Anxiety Studies
- Nanomaterials for catalytic reactions
- Multiferroics and related materials
- Microwave Dielectric Ceramics Synthesis
- Geotechnical Engineering and Underground Structures
- Chalcogenide Semiconductor Thin Films
- Electronic Packaging and Soldering Technologies
- 3D IC and TSV technologies
- Material Properties and Processing
- Vibration and Dynamic Analysis
Hong Kong Polytechnic University
2017-2024
Zhengzhou University of Light Industry
2024
Sichuan University
2022
Shenzhen University
2017
Potassium ion batteries (KIBs), because of their low price, may exhibit advantages over lithium as potential candidates for large-scale energy storage systems. However, owing to the large ionic radii K-ions, it is challenging find a suitable intercalation host KIBs and thus rechargeable KIB electrode materials are still largely unexplored. In this work, reticular V2O5·0.6H2O xerogel was synthesized via hydrothermal process cathode material KIBs. Compared with orthorhombic crystalline V2O5,...
Abstract Electrochemical capacitors (ECs) with high‐power capabilities and stable cycling can effectively improve the state of art in power delivery energy storage. In this study, we investigate reactively sputtered titanium nitride (TiN) electrodes on three‐dimensional (3D) substrates various electrolytes high‐rate conditions. The electrode exhibits stability negligible capacitance fading after 5 000 cycles a great rate capability, allowing (dis)charge to extend from 0.1 10 V s −1 retaining...
The two-phase KNa-MnFe(CN)<sub>6</sub>@CNT material was synthesized <italic>via</italic> a facile concentration-gradient coprecipitation method. outstanding electrochemical performance achieved for with the addition of CNT.
Improving mechanical properties of solder alloy can result in a decrease its conductivity. The conductivity the increases generation Joule heat and reduces reliability joint. This problem be solved by adjusting solidification parameters solders. In this paper, effect growth rate (V) on microstructure evolution, microhardness electrical directionally solidified (DS) Sn-0.7Cu-xCo (x = 0.5, 1.0, 1.5, 2.0, mass %) alloys was investigated. consists Sn-based solid solution (Sn-ss), Cu6Sn5 phase,...
The sample uniformity determines the repeatability of thermoelectric properties and offers optimized <italic>zT</italic> 0.8 at 800 K for conventionally sintered 973 K.
In this study, the sodium citrate assisted coprecipitation method was adopted to prepare high-quality potassium manganese hexacyanoferrate (KMHCF) by adjusting reactant concentration and aging time. The influences of time on microstructures electrochemical performance were investigated systematically. With variations in preparation conditions, as-prepared samples showed similar monoclinic crystal structure but different morphologies as well behaviors. results proved that lower is more...
Ultra-stable NTO electrodes with high ICE require suitable binders to provide both good electrode integrity and derived high-quality SEI.
As the featured material of superionic thermoelectric (TE) family, copper-chalcogenide Cu2-xSe is attracting growing research interest for its excellent TE performance derived from satisfactory power factor and ultra-low thermal conductivity induced by effect. Various efforts have been made proved to be effective further enhance Cu2-xSe. However, this still far application stage, which mainly due concerns regarding control properties costly complex fabrication technology. Here we report a...
Supercapacitors are characterized by high power density, but a bottleneck exists regarding their limited energy density due to the conflict between achieving mass loading and specific capacitance with current structural design.
In this work, graphene was modified by the grafting of poly(vinylidene fluoride) (PVDF) using Friedel-Crafts reaction to form PVDF-grafted (PGG) filler, which confirmed transmission electron microscope, Fourier transform infrared, Raman spectroscopy, wide angle X-ray diffraction, and thermogravimetric analysis. The solution containing as-prepared PVDF electrospun fibrous membranes, subjected hot pressing in laminating mode prepare solid PGG/PVDF composite films. structures membrane film were...
Spinel LiNi0.5Mn1.5O4 cathode materials with Fd3m space group were prepared using the co-precipitation method via adjusting amount of Na2CO3 precipitant. X-ray diffraction and Rietveld refinement revealed that impurity phase was effectively inhibited after addition more Na2CO3. All samples, including pristine sample different extra amounts Na2CO3, exhibited uniform polyhedron morphology their average grain sizes increased After adding 5% size larger than 500 nm. When compared to other...
Silicon (Si) is a promising anode material for Li-ion batteries but its application limited due to low electronic conductivity and severe volume change during the lithiation/delithiation process. Recently, coating carbon layer on Si surface doping alloy phase into bulk have been considered as effective approaches resolve aforementioned issues. The present study proposes facile method via polydopamine (PDA) with assistance of CuCl2·2H2O followed by high-temperature annealing process...
Silicon (Si) is a promising anode material for Li-ion batteries but its application limited due to severe volume change during the lithiation/delithiation process leading fast degradation of cycle performance. Applying transition metals dope into bulk Si forming active/inactive silicide phase proved an effective and practical method solve this issue. However, classic high-energy ball milling faced with challenges strict requirements machine, long-time working difficulty control morphology...
Silicon (Si) is a promising anode material for Li-ion batteries but its application limited due to severe volume change during the lithiation/delithiation process, leading fast degradation of cycle performance. Applying transition metals dope into bulk Si forming active/inactive silicide phase proved as an effective and practical method solve issue. However, classic high-energy ball milling faced with challenges strict requirements machine, long-time working difficulty control morphology...