A5015283732- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Thermal Expansion and Ionic Conductivity
- Perovskite Materials and Applications
- Luminescence Properties of Advanced Materials
- Extraction and Separation Processes
- Transition Metal Oxide Nanomaterials
- Solid State Laser Technologies
- Photorefractive and Nonlinear Optics
- Graphene research and applications
- Analytical Chemistry and Sensors
- Electric Vehicles and Infrastructure
- Electric and Hybrid Vehicle Technologies
- Glass properties and applications
- MXene and MAX Phase Materials
Southern University of Science and Technology
2021-2025
National University of Singapore
2017-2021
South China Normal University
2013-2016
Sulfur-deficient MoS<sub>2</sub> nanoflakes as an electrocatalyst improve the polysulfide conversion kinetics and hence performance of lithium–sulfur batteries.
Lithium-sulfur batteries, with their high theoretical energy density and the low material cost of sulfur, are highly promising as a post-lithium ion battery contender. Their current performance is however compromised by sulfur loss polysulfide shuttle to result in efficiency poor cycle stability. Herein, catalytic (Co9S8- x/CNT, nanoparticles metallic Co9S8 core sulfur-deficient shell on CNT support) was applied an interlayer cathode retain migratory polysulfides promote reutilization. The...
Most issues with Li-S batteries are caused by the slowness of multielectron sulfur electrochemical reaction resulting in loss as soluble polysulfides to electrolyte and redox shuttling between cathode anode during battery charge discharge. The acceleration polysulfide conversion their end products via electrocatalysis has appeal a root-cause solution. However, electrocatalysts developed date have rarely considered multistep and, such, were not optimized target specific steps overall S8 ↔...
Abstract The accelerated conversion of soluble lithium polysulfides (the intermediate products in the charging and discharging lithium–sulfur batteries) to insoluble sulfur sulfide is an effective method suppress “polysulfide shuttle” that detrimental battery performance. results this study show oxygen‐deficient tungsten oxide (WO 3− x ) nanoplate bidirectional electrocatalyst for polysulfide reactions. Two different designs asymmetric cells are used elucidate catalysis reactions confirm...
Abstract The lithium–sulfur batteries are susceptible to the loss of sulfur as dissolved polysulfides in electrolyte and their ensuing redox shutting effect. acceleration conversion kinetics into insoluble lithium sulfide via electrocatalysis has appeal being a root‐cause solution. MoS 2 is most common electrocatalyst used for this purpose. It demonstrated that how effectiveness can be improved by simultaneous cobalt phosphorus doping nanotubes (P‐Mo 0.9 Co 0.1 S ‐2, containing 1.81 at% P)....
In this paper, we report a novel structure of Mn2O3, the triple-shelled Mn2O3 hollow nanocube, as anode material for high-energy lithium-ion batteries, synthesized through programmed annealing treatment with cubic MnCO3 precursor. This hierarchical is developed interaction between contraction force from decomposition and adhesion formation Mn2O3. The has been confirmed by characterization XRD, FESEM, TEM, HRTEM. charge–discharge tests demonstrate that resulting exhibits excellent cycling...
We report a novel synthesis of spinel LiNi0.5Mn1.5O4, in which cubic and porous Mn2O3 nanoparticles, obtained from MnCO3, are used as templates to induce the formation crystallographic facet- size-defined spinel. This is done accomplish excellent cyclic stability cathode high voltage lithium ion battery. The uniformly dispersed pores template, whose size can be controlled by limiting annealing time facilitate incorporation nickel ions ensure with predominant (111) facet, while inherits...
Fingerprinting sulfur speciation in aprotic electrolytes is a key to understand fundamental chemistry and design well-performing lithium–sulfur (Li–S) batteries. Lithium polysulfide (LiPS) dissolution deposition ether-based during redox reactions have been probed established by spectroscopy microscopy. However, detailed LiPS structure solvation properties influenced conventional newly developed remain elusive, which exert challenges practical difficulties decouple battery performances from...
Core–shell porous nanocubic Mn<sub>2</sub>O<sub>3</sub>@TiO<sub>2</sub>was synthesized and applied as an anode for lithium-ion batteries, exhibiting excellent cyclic stability rate capability.
Porous LiMn2O4 was fabricated with cubic MnCO3 as precursor and characterized in terms of structure performance the cathode a lithium ion battery. The characterizations from SEM, TEM XRD demonstrate that product has morphology an average edge 250 nm, which it inherits precursor, porous architectured single-crystalline spinel nanoparticles 50 imitates Mn2O3 results thermal decomposition precursor. charge–discharge tests show synthesized exhibits excellent rate capability cyclic stability:...
Dual-band electrochromic devices (DBEDs), which can selectively modulate near-infrared (NIR) and visible (VIS) light transmittance through electrochromism, have gained increasing interest as a building energy saving technology. The technology is strongly dependent on the progress in materials. Most current research has focused dual-band properties of cathode materials, leaving charge-balancing anode materials under-explored by comparison. This report our study suitability tin-doped indium...
This work improves the performance of Li–S batteries by balancing chemisorption and charge transport properties interlayer.
Abstract A new variant of electrochromic energy storage (EES) windows is introduced recently by pairing an cathode with Al anode. Electrochromism in this case driven the built‐in potential difference and chemical recharging (via oxidation O 2 or H ) without need for external power source. However, anode–based EES are adversely affected irreversibility anode reaction, inconvenience recharging, a short cycle life. An electrically rechargeable alternative based on prelithiated WO 3 −x presented...
CG-S@PANI exhibits good cyclic stability and rate capability due to the co-contribution of CG PANI.