A5029072578- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- MXene and MAX Phase Materials
- Water Quality Monitoring and Analysis
- Metal and Thin Film Mechanics
- Laser-induced spectroscopy and plasma
- Electrocatalysts for Energy Conversion
- Laser-Plasma Interactions and Diagnostics
- Graphene research and applications
- Transition Metal Oxide Nanomaterials
- Diamond and Carbon-based Materials Research
- Laser-Matter Interactions and Applications
- Ferroelectric and Piezoelectric Materials
- Catalytic Processes in Materials Science
- Thermal Expansion and Ionic Conductivity
- Atomic and Molecular Physics
- Fuel Cells and Related Materials
- Semiconductor materials and devices
- Materials Engineering and Processing
- Advanced materials and composites
- Electron and X-Ray Spectroscopy Techniques
Sun Yat-sen University
2018-2025
Beihang University
2025
Beijing Zhenxing Metrology & Measurement Institute
2024
Beijing Institute of Radio Metrology and Measurement
2024
University of Macau
2024
Guangdong University of Technology
2022
Guilin University of Electronic Technology
2022
Chinese Academy of Sciences
2010-2020
Dalian Institute of Chemical Physics
2007-2020
Dalian University
2020
A Na3V2(PO4)3/C composite with 3.8 wt.% carbon, which was synthesized by a one-step solid state reaction, exhibits Na storage capacity of 107 mAh g−1 and high coulombic efficiency 99.8% in new NaFSI/PC electrolyte. In situ XRD results reveal its sodium mechanism as typical two-phase reaction from the Na3V2(PO4)3 to NaV2(PO4)3 phases 8.26% volume variation. These desired properties make it very promising for application room-temperature sodium- ion batteries. As service our authors readers,...
Abstract Layered sodium titanium oxide, Na 2 Ti 3 O 7 , is synthesized by a solid‐state reaction method as potential anode for sodium‐ion batteries. Through optimization of the electrolyte and binder, microsized electrode delivers reversible capacity 188 mA h g −1 in 1 M NaFSI/PC at current rate 0.1C voltage range 0.0–3.0 V, with alginate binder. The average storage plateau found ca. 0.3 V vs. + /Na, good agreement first‐principles prediction 0.35 V. properties are investigated from...
A cathode for high-rate performance lithium-ion batteries (LIBs) has been developed from a crystal habit-tuned nanoplate Li(Li0.17Ni0.25Mn0.58)O2 material, in which the proportion of (010) nanoplates (see figure) significantly increased. The results demonstrate that fraction surface is electrochemically active Li+ transportation key criterion evaluating different nanostructures potential LIB materials. Detailed facts importance to specialist readers are published as ”Supporting Information”....
Na 3 V 2 (PO 4 ) is one of the most important cathode materials for sodium‐ion batteries, delivering about two extraction/insertion from/into unit structure. To understand mechanism sodium storage, a detailed structure rhombohedral and its extracted phase NaV are investigated at atomic scale using variety advanced techniques. It found that different sites (6b, M1 18e, M2) with coordination environments co‐exist in , whereas only site M1) exists . When from to form + occupying M2 (CN = 8)...
Titanium niobium oxide (TiNb2O7) with a monoclinic layered structure has been synthesized by solid state reaction method as an anode candidate for Li-ion batteries. The TiNb2O7 electrode shows lithium storage capacity of 281 mAh g−1with initial coulombic efficiency high 93% at current density 30 mA g−1 (ca. 0.1C). average insertion voltage is about 1.64 V vs.Li/Li+ range 0.8–3.0 V. electrodes exhibit small hysteresis (c.a. 0.1 g−1) and good retention. Such superior electrochemical...
The full static picture of Li storage in Li(4)Ti(5)O(12) is derived using the latest spherical aberration-corrected scanning transmission electron microscopy and first-principles calculations. accommodation additional Li(+) directly visualized distribution electrons introduced by lithium insertion deduced. Moreover, found to transform into Li(7)Ti(5)O(12) on lithiation developing a dislocation-free coherent hetero-interface.
As one of the most promising cathodes for next-generation lithium ion batteries (LIBs), Li-rich materials have been extensively investigated their high energy densities. However, practical application is extremely retarded by sluggish electrode-electrolyte interface kinetics and structure instability. In this context, piezoelectric LiTaO3 employed to functionalize surface Li1.2Ni0.17Mn0.56Co0.07O2 (LNMCO), aiming boost interfacial Li+ transport process in LIBs. The results demonstrate that 2...
Abstract The Li 4 Ti 5 O 12 (LTO) spinel material, ranking at the second large market share after graphite, is a promising anode material for lithium‐ion batteries due to its good cycle stability, rate capability, and safety with both conventional low‐temperature electrolytes. However, several critical challenges, such as low capacity gassing issue, hindered wide applications of LTO anode. Recent progress indicated that performances are possible be further improved by novel strategies,...
Abstract Exploiting thin Li metal anode is essential for high-energy-density battery, but severely plagued by the poor processability of Li, as well uncontrollable plating/stripping behaviors and Li/electrolyte interface. Herein, a thickness/capacity-adjustable alloy-type Li/LiZn@Cu fabricated batteries. The as-formed lithophilic LiZn alloy in can effectively regulate stabilize interface to deliver hierarchical electrochemistry. Upon charging, firstly acts source homogeneous extraction. At...
As one of the most promising alternatives to graphite negative electrodes, silicon oxide (SiOx) has been hindered by its fast capacity fading. Solid electrolyte interphase (SEI) aging on SiOx recognized as critical yet least understood facet. Herein, leveraging 3D focused ion beam-scanning electron microscopy (FIB-SEM) tomographic imaging, we reveal an exceptionally characteristic SEI microstructure with incompact inner region and a dense outer region, which overturns prevailing belief that...
Abstract The pursuit of high energy density batteries has expedited the fast development Ni‐rich cathodes. However, chemo‐mechanical degradation induced by local thermal accumulation and anisotropic lattice strain is posing great obstacles for its wide applications. Herein, a highly‐antioxidative BaZrO 3 barrier engineered LiNi 0.8 Co 0.1 Mn O 2 cathode through an in situ construction strategy first reported to circumvent above issues. It found that Zr ions are incorporated material...
Two-dimensional (2D) layered materials are an indispensable cornerstone of modern industry, which harnesses their strengths and creativity for energy, catalysis, sensors, many other fields. Nowadays, science has transitioned from single-component substances to multicomponent composites, how efficiently construct multifunctional composites with controllable stable structures become a research hotspot. Among available preparation techniques, the layer-by-layer (LbL) self-assembly technology is...
ABSTRACT Solid‐state lithium batteries have attracted increasing attention due to their high ionic conductivity, potential safety performance, and energy density. However, practical application is limited by a series of interface issues. In recent years, many efforts been dedicated solving these problems via engineering providing feasible strategies for the optimization lithiumion solid‐state battery interfaces. This paper reviews developments in addressing interfacial The existing are first...
Abstract Na 3 V 2 (PO 4 ) (NVP) is recognized for its promising commercialization potential as a sodium‐ion battery (SIB) cathode, due to thermodynamic stability and open structure. However, the limited energy density remains major obstacle further advancement of NVP. Herein, medium‐entropy NASICON 3.3 1.4 Al 0.3 (MgCoNiCuZn) 0.06 (NVAMP‐0.3) designed by introducing 3+ , Mg 2+ Co Ni Cu Zn regulate configurational entropy. These NVAMP‐0.3 achieve an elevated average operating voltage (3.33 V)...
Direct observation of delithiated structures LiCoO2 at atomic scale has been achieved using spherical aberration-corrected scanning transmission electron microscopy (STEM) with high-angle annular-dark-field (HAADF) and annular-bright-field (ABF) techniques. The ordered Li, Co, O columns for nanoparticles are clearly identified in ABF micrographs. Upon the Li ions extraction from LiCoO2, Co-contained (003) planes distort bulk to surface region c-axis is expanded significantly. Ordering...
Li2MnO3 is an important building block for stabilizing the structure as well ensuring high specific lithium storage capacity of xLi2MnO3·(1 − x)LiMO2 (M = Ni, Co, Mn, etc.) cathode materials lithium-ion batteries. However, drawbacks such its low conductivity and oxygen evolution during delithiation make less attractive in terms safety, rate cycling performances than traditional materials. This work aims to improve properties Li2MnO3-related by doping molybdenum (Mo) into (C2/c)....
Identifying the structure of electrodes at atomic-scale remains a key challenge but is fertile realm for groundbreaking fundamental research in advanced Li-ion battery material field. In this context, subtle evolution taking place during lithiation/delithiation bulk/surface Li4Ti5O12 spinel (LTO) was probed using scanning transmission electron microscopy and found to undergo significant torque, namely Ti–O bond stretching/shrinking different state-of-charge (SOC), which not identified...
Continuous growth of traditional monolayer CrN coatings up to 24 h is successfully achieved fabricate ultrathickness 80 μm on the 316 stainless steel substrate using a multiarc ion plating technique. The microstructures, mechanical properties, and tribological properties evolution with coating continuously growing was evaluated in detail. transmission electron microscopy observations inverse Fourier-filtered images reveal relaxation mechanism during continuous coating, which can lead...