A5100701284- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Oxidative Organic Chemistry Reactions
- Organic Chemistry Cycloaddition Reactions
- Hydraulic Fracturing and Reservoir Analysis
- Radical Photochemical Reactions
- Advanced Thermoelectric Materials and Devices
- Semiconductor materials and devices
- Enhanced Oil Recovery Techniques
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Copper-based nanomaterials and applications
- Hydrocarbon exploration and reservoir analysis
- Energy Harvesting in Wireless Networks
- Drilling and Well Engineering
- Innovative Energy Harvesting Technologies
- Photochromic and Fluorescence Chemistry
- Silicon Nanostructures and Photoluminescence
- Advanced Antenna and Metasurface Technologies
- Dielectric materials and actuators
- Efficiency Analysis Using DEA
- CO2 Reduction Techniques and Catalysts
University of Electronic Science and Technology of China
2015-2025
Beijing University of Technology
2021-2024
Tsinghua University
2024
Henan University
2023-2024
Wuhan University
2024
Research Institute of Petroleum Exploration and Development
2024
China University of Geosciences (Beijing)
2016-2023
Xidian University
2023
China National Heavy Duty Truck Group (China)
2022
Beijing University of Civil Engineering and Architecture
2021
Among all solid electrolytes, composite polymer comprised of matrix and ceramic fillers, garner great interest due to the enhancement ionic conductivity mechanical properties derived from ceramic-polymer interactions. Here, we report a electrolyte with densely packed, vertically aligned, continuous nanoscale interfaces, using surface-modified anodized aluminum oxide as scaffold poly(ethylene oxide) matrix. The fast Li+ transport along interfaces was proven experimentally for first time, an...
Modern lithium ion batteries are often desired to operate at a wide electrochemical window maximize energy densities. While pushing the limit of cutoff potentials allows provide greater densities with enhanced specific capacities and higher voltage outputs, it raises key challenges thermodynamic kinetic stability in battery. This is especially true for layered transition-metal oxides, where can improve but stabilities compromised as wider windows applied. To overcome above-mentioned...
Significance This study explores the stripping of lithium anodes under various current densities and in different liquid electrolyte systems. We discovered nanovoid formation between solid interphase (SEI). Lithium polarization behavior has been systematically investigated with a three-electrode system ultramicroelectrode. The diffusion migration cations across SEI have determined to be main contributors overpotential. Two modes are proposed based on passivation condition lithium: passivated...
Improving the performance of solid-state lithium metal battery with three-dimensional anode nanostructural design.
Abstract The construction of poly‐dioxolane (PDOL) solid‐state electrolytes by in situ polymerization is an effective way to achieve high performance lithium‐metal batteries. However, the poor electrochemical stability and safety issues linear PDOL limit their further application. In this work, a multifunctional crosslinker has been introduced construct flame retardant crosslinked quasi electrolyte (FCDOL). Due synergistic effect network, prepared FCDOL achieves excellent room temperature...
In this paper, poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) gel polymer electrolyte was fabricated via solvent casting method in order to improve the performance of lithium-ion batteries. By comparing physical and electrochemical properties PVDF-HFP with three different proportions, optimization obtained: 10wt% - 80wt% tetrahydrofuran (THF) / acetone 1mol L-1 lithium perchlorate (LiClO4) elthylene carbonate (EC) diethyl (DEC). The optimized displayed a high conductivity...
Abstract The high-resistive grain boundaries are the bottleneck for Li + transport in 7 La 3 Zr 2 O 12 (LLZO) solid electrolytes. Herein, high-conductive LLZO thin films with cubic phase and amorphous domains between crystalline grains prepared, via annealing repetitive LLZO/Li CO /Ga multi-nanolayers at 600 °C h. may provide additional vacant sites , thus relax accumulation of boundaries. significantly improved ionic conductivity across demonstrates that high energy barrier migration caused...
The d 33 coefficient = 28 pC/N of PVDF-TrFE piezoelectric films was achieved by the in situ polarization. Compared with traditional poling methods, polarization is performed low voltage and short time, it can ensure film enhanced performances uniform distribution among a large area 200 mm 2 × . processing influence drying, annealing, on crystalline properties were investigated. Besides, obtained present good response to different extents mechanical stimulations, which have great potential...
Amid the burgeoning demand for electrochemical energy storage and neuromorphic computing, fast ion transport behavior has attracted widespread attention at both fundamental practical levels. Here, based on nanoconfined channel of graphene oxide laminar membranes (GOLMs), lithium ionic conductivity typically exceeding 10
Model pruning is an effective approach for compressing large language models. However, this process often leads to significant degradation of model capabilities. While post-training techniques such as instruction tuning are commonly employed recover performance, existing methods overlook the uneven deterioration capabilities and incur high computational costs. Moreover, some data irrelevant capability recovery may introduce negative effects. To address these challenges, we propose...
Abstract Control over phase stabilities during synthesis processes is of great importance for both fundamental studies and practical applications. We describe herein a facile strategy the Cu 2 Se with selectivity through simple solvothermal method. In presence absence SbCl 3 , monoclinic α‐Cu cubic β‐Cu can be synthesized, respectively. The formation requires optimization Cu/Se molar ratio in starting reagents, reaction temperature, as well timing addition . Differential scanning calorimetry...
A low-profile circularly polarized (CP) omnidirectional metasurface antenna is developed and integrated with solar cells. The proposed consists of an array 4 × square rings. Square cells are mounted inside each ring. Characteristic mode analysis (CMA) used to analyze the modal behavior metasurface. results demonstrate that rings have a slight influence on antenna. This arrangement not only enables total exposure sunlight but also exhibits no degradation performance Then, by using proper...
In order to improve the oil recovery of mid-deep heavy reservoirs, this study investigates efficiency enhanced and mechanisms displacement in reservoirs using different injected gases (N 2 , CH 4 CO ) development approaches (gas flooding gas huff-n-puff) through a series experiments. These experiments include high-pressure physical properties tests crude after injection, huff-n-puff. The results indicate that for preferred optimal injection is with huff-n-puff being most effective method....
Abstract The practical application of lithium‐metal batteries (LMBs) remains impeded by uncontrollable Li dendrite growth and unstable solid‐state electrolyte interphase (SEI) on anodes. Constructing the inorganic‐rich SEI is considered as an effective strategy to realize dense deposition inhibit interfacial side reactions, thereby improving lifespans LMBs. Herein, anion‐reduction‐catalysis mechanism proposed design a LiF‐rich utilizing 2D tellurium (Te) nanosheets catalysts, which are...
Since the first successful story was reported in middle of 1990s, combinatorial materials science has attracted more and attentions community. In past two decades, a great amount effort been made to develop high-throughput approaches for research. However, few mechanical characterization methods tools were reported. To date, number micro-scale have developed, which provided basis characterization. Many existing micro-mechanical testing apparatuses can be pertinently modified For example,...
Owing to its high specific capacity, silicon is considered as a promising anode material for lithium ion batteries (LIBs). However, the synthesis strategies previous silicon-based materials with delicate hierarchical structure are complicated or hazardous. Here, Prussian blue analogues (PBAs), widely used in ink, deposited on nanoparticle surface (PBAs@Si-450) modify nanoparticles transition metal atoms and N-doped carbon layer. A facile green procedure of PBAs@Si-450 nanocomposites was...
Conventionally, an experimentally determined phase diagram requires studies of formation at a range temperatures for each composition, which takes years effort from multiple research groups. Combinatorial materials chip technology, featuring high-throughput synthesis and characterization, is able to determine the entire composition spread binary or ternary system single temperature on one library, which, though significantly increasing efficiency, still many libraries processed series in...
Silicon (Si) is a low‐cost, stable photovoltaic market contributor which approaching its single‐junction theoretical efficiency limit. To further elevate the of crystalline Si (c‐Si) afterward, solar cells (SCs) need proper top cell absorber in tandem SCs. Herein, studied by evaluating their current state art, existing challenges, and possible future solutions can enhance efficiency. The progress perovskite/Si SC both for monolithic four terminals exceptional but still many challenges limit...