- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Material Science and Thermodynamics
- Radiative Heat Transfer Studies
- Chemical Synthesis and Characterization
- Adsorption and biosorption for pollutant removal
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Chemical Analysis and Environmental Impact
- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Muon and positron interactions and applications
- Ferroelectric and Piezoelectric Materials
- Gas Sensing Nanomaterials and Sensors
- Environmental remediation with nanomaterials
- Recycling and utilization of industrial and municipal waste in materials production
- TiO2 Photocatalysis and Solar Cells
- Surface Modification and Superhydrophobicity
- Fuel Cells and Related Materials
- Phosphorus and nutrient management
- Semiconductor materials and interfaces
- Magnetic Properties and Synthesis of Ferrites
Hebei University of Technology
2009-2024
TianjinSino-German University of Applied Sciences
2024
Guangxi University
2023-2024
Ministry of Education of the People's Republic of China
2019
Battery Park
2009
The one-dimensional Li + diffusion channel is the key factor restricting rate performance and low-temperature of LFP/C composites. By artificially creating a certain content antisite defects, in LFP material can be diffused two-dimensionally. composites synthesized by carbothermic reduction method at 700 °C have 3.77% Fe-Li showing higher performance, cycle discharge-specific capacity. CV, EIS, GITT tests show that coefficient highest when defects 3.77%. DFT calculation shows single pair...
Ion doping is one of the primary means to enhance properties phosphate cathode materials. In this document, DFT+U method used determine selection ion sites from energy band perspective and density state. Further, different contents niobium-doped LiMn 0.6 Fe 0.4-x Nb x PO 4 (0≤x≤0.2) were obtained by solid-phase synthesized samples also measured analyzed. The results show that ion-doped modification principle introduction impurity bands between gaps, transition metal ions are more inclined...
Rare earth mineral composite materials were prepared using tourmaline and cerous nitrate as raw materials. Through characterization by scanning electron microscopy, X-ray diffraction, photoelectron spectroscopy, dynamic contact angle meter tensiometer, Fourier transform infrared it was found that the had a better far emitting performance than tourmaline, which depended on many factors such material composition, microstructure, surface free energy. Based results of flue gas analyzer water...
A LiMn 0.6 Fe 0.4 PO 4 /CA composite with a high tap density and superior electronic conductivity is synthesized by combination of wet ball-milling, spray drying, carbothermal reduction Carbon aerogel (CA) as carbon additive. CA porous nanomaterial very large specific surface area. There are 3D network structure between the primary particles when used for coating. This not only beneficial improvement but also can absorb amount electrolyte, which helps to improve Li + exchange rate electrode...
High volumetric energy density LiFePO 4 /C cathode materials were synthesized by wet ball milling, spray drying, and carbothermal reduction method using glucose polyethylene glycol (PEG) as composite carbon sources dodecyl polyglucoside (C12APG) a milling aid. With the introduction of C12APG during process, prepared have uniform particle size (100–200 nm in diameter) regular primary morphology. In addition, PEG substitutes part source, resulting low content high graphitization residual after...
In this study, we fabricated LiMn 0.6 Fe 0.4 PO 4 /C (LMFP/C) materials employing the spray drying method. Subsequently, LMFP/C composites underwent surface modification with Li Ti 5 O 12 (LTO) using rheological phase reaction LTO demonstrates high electrochemical activity and possesses significantly greater lithium-ion conductivity compared to LMFP. The developed composite coating serves a dual purpose by safeguarding LMFP material against electrolyte erosion facilitating swift transfer of...
As an integral part of a lithium-ion battery, carbonaceous conductive agents have important impact on the performance battery. Carbon sources (e.g., granular Super-P and KS-15, linear carbon nanotube, layered graphene) with different morphologies were added into battery as agents, effects their electrochemical processability spherical lithium iron phosphate investigated. The results show that nanotube graphene enable to efficiently connect cathode materials, which contribute improving...