A5100776569- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Graphene research and applications
- Advanced battery technologies research
- Molecular Junctions and Nanostructures
- Quantum and electron transport phenomena
- Transition Metal Oxide Nanomaterials
- Multiferroics and related materials
- Laser Design and Applications
- Magnetic Properties and Synthesis of Ferrites
- TiO2 Photocatalysis and Solar Cells
- MXene and MAX Phase Materials
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Semiconductor materials and devices
- Spectroscopy and Laser Applications
- Conducting polymers and applications
- Welding Techniques and Residual Stresses
- Organic Electronics and Photovoltaics
- Gas Sensing Nanomaterials and Sensors
- Semiconductor materials and interfaces
- Fatigue and fracture mechanics
Jilin Medical University
2010-2025
Jilin University
2016-2025
Harbin Institute of Technology
2008-2024
State Key Laboratory of Superhard Materials
2015-2024
Lenovo (China)
2023-2024
Donghua University
2020-2024
Ministry of Ecology and Environment
2020-2024
Beijing Technology and Business University
2024
WuXi AppTec (China)
2023
Osaka University
2023
Concentrated potassium acetate as a water-in-salt electrolyte provides wide potential window from −1.7 to 1.5 V vs Ag/AgClKCl sat.. It facilitates the reversible operation of KTi2(PO4)3, an anode potassium-ion batteries, that otherwise only functions in nonaqueous electrolytes.
A carbon-coated Na3V2(PO4)2F3 nanocomposite (NVPF@C) is successfully realized by a facile sol–gel method. Carbon-coated NVPF nanoparticles are dispersed inside the mesoporous carbon matrix, which can not only improve electron/ion transfer among different nanoparticles, but also benefit electrolyte wetting during cycling. As result, NVPF@C cathode demonstrates remarkable Na+ storage performance: high reversible capacity of nearly 130 mA h g−1 over 50 cycles between 4.3 and 2.0 V; superior...
Abstract Conventional lithium-ion batteries embrace graphite anodes which operate at potential as low metallic lithium, subjected to poor rate capability and safety issues. Among possible alternatives, oxides based on titanium redox couple, such spinel Li 4 Ti 5 O 12 , have received renewed attention. Here we further expand the horizon include a perovskite structured titanate La 0.5 TiO 3 into this promising family of anode materials. With average around 1.0 V vs. + /Li, exhibits high...
NASICON-type structured NaTi2(PO4)3 (NTP) has attracted wide attention as a promising anode material for sodium-ion batteries (SIBs), whereas it still suffer from poor rate capability and cycle stability due to the low electronic conductivity. Herein, architecture, NTP nanoparticles embedded in mesoporous carbon matrix, is designed realized by facile sol-gel method. Different than commonly employed potentials of 1.5-3.0 V, Na(+) storage performance examined at operation voltages between 0.01...
NASICON-structured Na3V2(PO4)2F3 is considered as a potentially high-capacity cathode material for Na-ion batteries; however, its poor rate capability and insufficient cyclability remain challenge battery applications. To address this issue, we designed successfully synthesized core/double-shell structured Na3V2(PO4)2F3@C nanocomposite (Na3V2(PO4)2F3@CD) by in situ carbon coating embedding the nanoparticles ordered mesoporous framework. Benefiting from sufficient electrochemically available...
Li1.18Co0.15Ni0.15Mn0.52O2 cathode material was prepared by the sol–gel method. The coated with ionic conductor Li3VO4via direct reaction NH4VO3 at 350 °C. Li3VO4 had a higher ordered hexagonal layered structure, and less Li+/Ni2+ cation mixing. surface of composed polycrystals, which were impregnated into bulk active material. coating protected from contact CO2 in air, thus inhibiting formation an Li2CO3 layer. Electrochemical studies showed that improved activation Mn4+ ions, resulting...
A modified Ni-rich Li[Ni0.8Co0.1Mn0.1]O2 cathode material with exposed {010} planes is successfully synthesized for lithium-ion batteries. The scanning electron microscopy images have demonstrated that by tuning the ammonia concentration during synthesis of precursors, primary nanosheets could be stacked along [001] crystal axis predominantly, self-assembling like multilayers. According to high-resolution transmission results, such a morphology benefits growth active final layered cathodes...
Polyanionic Na3V2(PO4)2F3 with a NASICON-type structure is heralded as promising cathode material for sodium-ion batteries due to its fast ionic conduction, high working voltage, and favorable structural stability. However, number of challenging issues remain regarding rate capability cycle life, which must be addressed enable greater application compatibility. Here, facile effective approach that can used overcome these disadvantages by introducing an aqueous carboxymethyl cellulose (CMC)...
To simultaneously achieve high compaction density and superior rate performance, a structure-gradient LiNi0.8Co0.1Mn0.1O2 cathode material composed by compacted core an active-plane-exposing shell was designed synthesized via secondary co-precipitation method successfully. The tight stacking of primary particles in the part ensures material, whereas exposed active planes, resulting from nanosheets along [001] crystal axis predominantly, region afford enhanced Li+ transport. Thus, this...
Layered Ni-rich materials for lithium-ion batteries exhibit high discharge capacities but degraded cyclability at the same time. The limited cycling stability originates from many aspects. One of critical factors is intrinsic insulating residual lithium compounds and rock-salt (NiO) phase on surface particles. In this work, LiNi 0.8 Co 0.1 Mn O 2 material etched with a trace amount boric acid used as model to demonstrate influences weak treatment regulations. After etching process, pH...
The transformation of pyrrhotite to Fe disulfide (pyrite and/or marcasite) under hydrothermal conditions was studied experimentally by probing the effects temperature (up 220 °C, vaporsaturated pressures), ΣS(-II) concentrations, pH, and availability oxygen on reaction progress resulting textures.
Large-area Co(OH)2 nanosheets have been successfully coated with ionic liquid modified graphenevia a general strategy. The advantageous combination of graphene and the 2D structure endows obtained heterostructures remarkable lithium-storage performance, including high reversible capacity superior cyclic rate performance.
RuO2 nanocrystals are successfully impregnated into the surface carbon layer of Li3V2(PO4)3/C cathode material by precipitation method. Transmission electron microscopy shows that particles uniformly embed in layer. Cyclic voltammetry and electrochemical impedance spectroscopy indicate coexistence enables high conductivity for both Li ions electrons thus stabilizes interfacial properties electrode, facilitates charge transfer reactions, improves Li(+) diffusion electrode. As a result,...
The continuous phase transformation to spinel LiMn2O4 seriously hinders the electrochemical properties of Li-excess layered oxides in lithium ion batteries. Herein, we prepared a heterostructured cathode material consisting Li(Li0.18Ni0.15Co0.15Mn0.52)O2 active conjunction with surface Li4M5O12 and Li2O-LiBO2–Li3BO3 glass coating layer. showed improved kinetic respect its pristine counterpart because Li2O–LiBO2–Li3BO3 layer not only ionic conductivity but also depressed side reactions...
An integrated WS2 @CMK-3 nanocomposite has been prepared by a one-step hydrothermal method and then used as the anode material for lithium-ion sodium-ion batteries. Ultrathin nanosheets have successfully embedded into ordered mesoporous carbon (CMK-3) framework. Owing to few-layered nanostructure of , well high electronic conductivity volume confinement effect CMK-3, shows larger discharge capacity, better rate capability, improved cycle stability than pristine . When tested in batteries,...