A5026761365- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Environmental Changes in China
- Remote Sensing and Land Use
- Advanced Battery Technologies Research
- Remote Sensing in Agriculture
- Semiconductor materials and devices
- Electrocatalysts for Energy Conversion
- Graphene research and applications
- Advanced battery technologies research
- Plasma and Flow Control in Aerodynamics
- Extraction and Separation Processes
- Electrochemical Analysis and Applications
- Environmental and Agricultural Sciences
- Ultrasonics and Acoustic Wave Propagation
- 2D Materials and Applications
- Advanced Memory and Neural Computing
- Aerodynamics and Fluid Dynamics Research
- Magnetic and transport properties of perovskites and related materials
- Non-Destructive Testing Techniques
- Fluid Dynamics and Turbulent Flows
- Crystallography and molecular interactions
- Advanced biosensing and bioanalysis techniques
- Luminescence and Fluorescent Materials
Xiamen University
2016-2025
First Affiliated Hospital of Zhengzhou University
2025
Interface (United Kingdom)
2025
Surface (Brazil)
2025
State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing
2024
Wuhan University
2012-2024
Engineering Systems (United States)
2020-2024
University of Memphis
2020-2024
Institute of Electrical and Electronics Engineers
2017-2024
Tsinghua University
2024
Stable Na+ ion storage cathodes with adequate reversible capacity are now greatly needed for enabling Na-ion battery technology large scale and low cost electric applications. In light of the superior Li+ performance layered oxides, pure P2-phase Na0.67[Mn0.65Ni0.15Co0.2]O2 microflakes synthesized by a simple sol–gel method tested as cathode. These exhibit considerably high 141 mA h g−1 slow decay to 125 after 50 cycles, showing much better cyclability than previous NaMnO2 compounds. To...
Na-stabilized Li1.2−xNax[Co0.13Ni0.13Mn0.54]O2 is synthesized by introducing larger Na ions into the Li slabs of layered material through a simple polymer-pyrolysis method. The structural and morphological characterization reveals that doping leads to more ordered structure with regular cubic morphology enlarged layer spacing. Electrochemical experiments show Na-doped Li1.17Na0.03[Co0.13Ni0.13Mn0.54]O2 electrode can deliver reversible discharge capacity (307 mA h g−1), higher initial...
Li-rich layered oxides have been in focus because of their high specific capacity. However, they usually suffer from poor kinetics, severe voltage decay, and capacity fading. Herein, a long-neglected Li-deficient method is demonstrated to address these problems by simply reducing the lithium content. Appropriate vacancies can improve dynamics features induce situ surface spinel coating nickel doping bulk. Therefore, elaborately designed Li1.098Mn0.533Ni0.113Co0.138O2 cathode possesses...
Abstract Li‐rich Mn‐based cathode materials (LRMs) are potential for high energy density lithium‐ion batteries. However, low initial Coulombic efficiency (ICE) severely hinders the commercialization of LRM. Herein, a facile oleic acid‐assisted interface engineering is put forward to precisely control ICE, enhance reversible capacity and rate performance LRM effectively. As result, ICE can be adjusted from 84.1% 100.7%, very specific 330 mAh g −1 at 0.1 C, as well outstanding capability with...
Abstract Sodium metal batteries (NMBs) have attracted increasing attention as next‐generation rechargeable batteries. How to improve their cycling stability and safety under limited sodium excess conditions, ideally zero (i.e., anode‐free architecture), is highly desired yet remains challenging. Herein, it demonstrated that formate (HCOONa), one component of the solid electrolyte interphase (SEI) naturally formed on anode, a promising candidate for designing high‐performance artificial SEI...
Abstract Mechanoluminescence (ML) sensing technologies open up new opportunities for intelligent sensors, self-powered displays and wearable devices. However, the emission efficiency of ML materials reported so far still fails to meet growing application requirements due insufficiently understood mechano-to-photon conversion mechanism. Herein, we propose quantify ability different phases gain or lose electrons under friction (defined as triboelectric series), reveal that inorganic-organic...
Layered Li[Li0.2Co0.13Ni0.13Mn0.54]O2 nanoparticles were synthesized by a simple polymer-pyrolysis method and then coated with 3 wt% Al2O3 to form ∼4 nm thick protective skin. The Al2O3-coated electrode demonstrates high initial coulombic efficiency of 96.1%, large reversible capacity ∼311 mAh g−1, good cyclability 83.8% retention after 70 cycles. Particularly, this material can deliver quite ∼239 g−1 at rate 400 mA g−1. This superior electrochemical performance results from the...
Several bidentate dihydroimidazolines were prepared and investigated as catalysts for hydrogen transfer reduction of C═N bond with Hantzsch ester. Highly efficient reactions observed quinolines imines low catalyst loading 2 mol %. The presence halogen bonding was elucidated using NMR studies isothermal calorimeric titrations. Binding constants the XB donors also measured titrations (ITC).
Mg-doped Li[Li0.2–2xMgxCo0.13Ni0.13Mn0.54]O2 is synthesized by introducing Mg ions into the transition-metal (TM) layer of this layered compound for substituting Li through a simple polymer-pyrolysis method. The structural and morphological characterization reveals that doped are uniformly distributed in bulk lattice, showing an insignificant impact on structure. Electrochemical experiments reveal that, at doping 4%, Li[Li0.16Mg0.04Co0.13Ni0.13Mn0.54]O2 electrode can deliver larger initial...
The corrosion of Li- and Mn-rich (LMR) electrode materials occurring at the solid-liquid interface will lead to extra electrolyte consumption transition metal ions dissolution, causing rapid voltage decay, capacity fading, detrimental structure transformation. Herein, a novel strategy is introduced suppress this by designing an Na
Nickel‐rich LiNi 1−x−y Co x Mn y O 2 (NCM, ≥ 0.6) is known as a promising cathode material for lithium‐ion batteries since its superiority of high voltage and large capacity. However, polycrystalline Ni‐rich NCMs suffer from poor cycle stability, limiting further application. Herein, single crystal 0.84 0.07 0.09 materials are compared to figure out the relation morphology electrochemical storage performance. According Li + diffusion coefficient, lower capacity samples mainly ascribed...
Abstract There are plenty of issues need to be solved before the practical application Li- and Mn-rich cathodes, including detrimental voltage decay mediocre rate capability, etc. Element doping can effectively solve above problems, but cause loss capacity. The introduction appropriate defects compensate capacity loss; however, it will lead structural mismatch stress accumulation. Herein, a three-in-one method that combines cation–polyanion co-doping, defect construction, engineering is...
The effect of the cutoff voltages on working voltage decay and cyclability lithium-rich manganese-based layered cathode (LRMO) was investigated by electrochemical measurements, impedance spectroscopy, ex situ X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy line scan technologies. It found that both lower (2.0 V) upper (4.8 cause severe with cycling due to formation spinel phase migration transition metals inside particles. Appropriate between 2.8 4.4 V can...