A5100354261- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Body Composition Measurement Techniques
- Nutrition and Health in Aging
- Supercapacitor Materials and Fabrication
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Advanced Battery Technologies Research
- Magnetic and transport properties of perovskites and related materials
- Thermoregulation and physiological responses
- Semiconductor materials and devices
- Advancements in Solid Oxide Fuel Cells
- High-Energy Particle Collisions Research
- Advanced Condensed Matter Physics
- Inorganic Chemistry and Materials
- Electronic and Structural Properties of Oxides
- Advancements in Semiconductor Devices and Circuit Design
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Solid-state spectroscopy and crystallography
- Semiconductor materials and interfaces
- Ferroelectric and Piezoelectric Materials
- Magnetic properties of thin films
Oak Ridge National Laboratory
2019-2025
Xiamen University
2015-2025
Southern University of Science and Technology
2024-2025
Huazhong University of Science and Technology
2021-2024
Linyi University
2024
Tencent (China)
2024
Southeast University
2011-2024
Sun Yat-sen University
2023-2024
Chongqing Institute of Geology and Mineral Resources
2024
Shandong University
2016-2024
Abstract High‐Ni layered oxide cathodes are considered to be one of the most promising for high‐energy‐density lithium‐ion batteries due their high capacity and low cost. However, surfice residues, such as NiO‐type rock‐salt phase Li 2 CO 3 , often formed at particle surface reactivity Ni 3+ inevitably result in an inferior electrochemical performance, hindering practical application. Herein, unprecedentedly clean surfaces without any residues obtained a representative LiNi 0.8 Co 0.2 O...
Abstract Rechargeable magnesium batteries are identified as a promising next‐generation energy storage system, but their development is hindered by the anode−electrolyte−cathode incompatibilities and passivation of metal anode. To avoid or alleviate these problems, exploitation alternative anode materials choice. Herein, we present titanium pyrophosphate (TiP 2 O 7 ) for magnesium‐ion (MIBs) investigate effect crystal phase on its performance. Compared with metastable layered TiP ,...
Supported metal catalysts with appropriate metal-support interactions (MSIs) hold a great promise for heterogeneous catalysis. However, ensuring tight immobilization of clusters/nanoparticles on the support while maximizing exposure surface active sites remains huge challenge. Herein, we report an Ir/WO
Abstract Eliminating cobalt from high‐nickel layered oxide cathodes lowers the cost of lithium‐ion batteries for electric vehicles. However, cobalt‐free with high Mn 4+ and Ni 2+ contents are prone to Li/Ni mixing after synthesis, potentially compromising battery energy density, rate capability, cycling stability. Without facilitating cation ordering in structure, degree depends heavily on calcination conditions. In this study, a systematic exploration temperatures LiOH ratio LiNi 0.9 0.1 O...
Multilayer films of Co-Al layered double hydroxide nanosheets (Co-Al LDH-NS) and graphene oxide (GO) were fabricated through layer-by-layer (LBL) assembly. By using a three-electrode system, the electrochemical performances investigated to evaluate their potential as electrode materials be used in flexible supercapacitor devices. The LDH-NS/GO multilayer exhibited high specific capacitance 880 F/g area 70 F/m(2) under scan rate 5 mV/s. And film good cycle stability over 2000 cycles. After...
The large-voltage hysteresis remains one of the biggest barriers to optimizing Li/Na-ion cathodes using lattice anionic redox reaction, despite their very high energy density and relative low cost. Very recently, a layered sodium cathode Na2Mn3O7 (or Na4/7Mn6/7□1/7O2, □ is vacancy) was reported have reversible oxygen with much suppressed voltage hysteresis. However, structural electronic origin this small-voltage has not been well understood. In article, through systematic studies ex situ/in...
Abstract A series of F‐substituted Na 2/3 Ni 1/3 Mn O 2− x F ( = 0, 0.03, 0.05, 0.07) cathode materials have been synthesized and characterized by solid‐state 19 23 NMR, X‐ray photoelectron spectroscopy, neutron diffraction. The underlying charge compensation mechanism is systematically unraveled absorption spectroscopy electron energy loss (EELS) techniques, revealing partial reduction from 4+ to 3+ upon F‐substitution. It revealed that not only but also participates in the redox reaction...
In recent years, ternary halides Li3MX6 (M = Y, Er, In; X Cl, Br, I) have garnered attention as solid electrolytes due to their wide electrochemical stability window and favorable room-temperature conductivities. this material class, the influences of iso- or aliovalent substitutions are so far rarely studied in depth, despite being a common tool for correlating structure transport properties. work, we investigate impact Zr substitution on ionic conductivity Li3InCl6 (Li3–xIn1–xZrxCl6 with 0...
Driven by the increasing attention that superionic conductors Li3MX6 (M = Y, Er, In, La; X Cl, Br, I) have gained recently for use of solid-state batteries, and idea a softer, more polarizable anion sublattice is beneficial ionic transport, here we report Li3ErI6, first experimentally obtained iodine-based compound within this material system conductors. Using combination synchrotron neutron diffraction, elucidate structure, lithium positions, possible diffusion pathways Li3ErI6....
The lithium argyrodites Li6PS5X (X = Cl, Br, I) exhibit high lithium-ion conductivities, making them promising candidates for use in solid-state batteries. These solid electrolytes can show considerable substitutional X-/S2- anion disorder, typically correlated with higher conductivities. atomic-scale effects of this site disorder within the host lattice-in particular how lattice modulates substructure-are not well understood. Here, we characterize substructure as a function temperature and...
Abstract Iron vanadates are attractive anode materials for sodium‐ion batteries (SIBs) because of their abundant resource reserves and high capacities. However, practical application is restricted by the aggregation materials, sluggish reaction kinetics, inferior reversibility. Herein, Fe 2 VO 4 nanoparticles anchored on ordered mesoporous carbon (CMK‐3) nanorods to assemble 3D @CMK‐3 composites, solvothermal treatment subsequent calcination. The resulting composites provide active sites,...
Abstract Wadsley–Roth phased niobates are promising anode materials for lithium‐ion batteries, while their inherently low electrical conductivity still limits rate‐capability. Herein, a novel doped Mo 1.5 W Nb 14 O 44 (MWNO) material is facilely prepared via an ionothermal‐synthesis‐assisted doping strategy. The detailed crystal structure of MWNO characterized by neutron powder diffraction and aberration corrected scanning transmission electron microscope, unveiling the full occupation 6+...
Abstract The (electro)chemical reactions between Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) solid‐state electrolyte and lithium metal plague the practical applications of LATP. A commonly used strategy to tackle this issue is construct an ionic conductor layer stabilize Li/LATP interface. Herein, it demonstrated that electronic interlayer (Al or Ag) can also greatly enhance interfacial stability Li/LATP. To unveil origin enhanced stability, a series techniques, including in situ electron optical...
A commonly used strategy to tackle the unstable interfacial problem between Li1.3Al0.3Ti1.7(PO4)3 (LATP) and lithium (Li) is introduce an interlayer. However, this has a limited effect on stabilizing LATP during long-term cycling or under high current density, which due in part negative impact of its internal defects (e.g., gaps grains (GBs)) that are usually neglected. Here, control experiments theoretical calculations show clearly GBs have higher electronic conductivity, significantly...
In this study, an improved adaptive robust unscented Kalman Filter (ARUKF) is proposed for accurate state-of-charge (SOC) estimation of battery management system (BMS) in electric vehicles (EV). The extended (EKF) algorithm first used to achieve online identification the model parameters. Subsequently, identified parameters obtained from EKF are processed obtain SOC batteries using a multi-innovation filter (MIARUKF), developed by ARUKF based on principle multi-innovation. Co-estimation and...