A5079367889- Advanced battery technologies research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Advanced Battery Technologies Research
- Conducting polymers and applications
- MXene and MAX Phase Materials
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Ionic liquids properties and applications
- Perovskite Materials and Applications
- Extraction and Separation Processes
- Advancements in Solid Oxide Fuel Cells
- Copper-based nanomaterials and applications
- Inorganic Chemistry and Materials
- Electrochemical Analysis and Applications
- Advanced Sensor and Energy Harvesting Materials
- 2D Materials and Applications
- Organic Electronics and Photovoltaics
- Molecular spectroscopy and chirality
- Chemical Looping and Thermochemical Processes
- Molten salt chemistry and electrochemical processes
- Carbon dioxide utilization in catalysis
- CO2 Reduction Techniques and Catalysts
Southern University of Science and Technology
2017-2025
Tsinghua University
2021-2024
Tsinghua–Berkeley Shenzhen Institute
2021-2024
Guangdong University of Technology
2024
Shenzhen University
2020
University of Macau
2017-2019
Single-atom metal catalysts (SACs) are used as sulfur cathode additives to promote battery performance, although the material selection and mechanism that govern catalytic activity remain unclear. It is shown d-p orbital hybridization between single-atom species can be a descriptor for understanding of SACs in Li-S batteries. Transition metals with lower atomic number found, like Ti, have fewer filled anti-bonding states, which effectively bind lithium polysulfides (LiPSs) catalyze their...
Abstract The lengthened ion pathway in restacked 2D materials greatly limits the electrochemical performance of practically dense film electrodes (mass loading >10 mg cm −2 ). Typical strategies such as insertion nanomaterials and 3D‐structure design is expected to reduce volumetric capacitance Ti 3 C 2 T x electrodes, diminishing dominating advantage over other electrode materials. Here, a novel, facile, controllable H SO 4 oxidation method developed for alleviating restacking issue with...
Significance In recent years, lithium-ion batteries (LIBs) have been widely applied in electric vehicles as energy storage devices. However, it is a great challenge to deal with the large number of spent LIBs. this work, we employ rapid thermal radiation method convert LIBs into highly efficient bifunctional NiMnCo-activated carbon (NiMnCo-AC) catalysts for zinc-air (ZABs). The obtained NiMnCo-AC catalyst shows excellent electrochemical performance ZABs due unique core-shell structure,...
Abstract Wearable electronics require lightweight and flexible batteries, of which lithium‐sulfur (Li‐S) batteries are great interest due to their high gravimetric energy density. Nevertheless, Li‐S have unsatisfactory electrochemical performance owing electrode fracture during repeated bending, the volume change sulfur species severe shuttle effect. Binders play essential roles in these but always lacked attention. Herein, a self‐healing polyvinylpyrrolidone‐polyethyleneimine (PVP‐PEI)...
Flexible Zn-air batteries (FZABs) have significant potentials as efficient energy storage devices for wearable electronics because of their safeties and high energy-to-cost ratios. However, application is limited by short cycle lives, low discharge capacities per cycle, charge/discharge polarizations. Accordingly, herein, a poly(sodium acrylate)-polyvinyl alcohol (PANa-PVA)-ionic liquid (IL) hydrogel (PANa-PVA-IL) prepared using hygroscopic IL, 1-ethyl-3-methylimidazolium chloride, an...
Abstract Lithium cobalt oxide (LCO) is widely used in Li‐ion batteries due to its high volumetric energy density, which generally charged 4.3 V. Lifting the cut‐off voltage of LCO from V 4.7 will increase specific capacity 150 230 mAh g ‐1 with a significant improvement 53%. However, suffers serious problems H1‐3/O1 phase transformation, unstable interface between cathode and electrolyte, irreversible oxygen redox reaction at Herein, stabilization band structure modification are proposed...
As one of the CO2 capture and utilization technologies, Li-CO2 batteries have attracted special interest in application carbon neutral. However, design fabrication a low-cost high-efficiency cathode catalyst for reversible Li2CO3 formation decomposition remains challenging. Here, guided by theoretical calculations, was utilized to activate catalytic activity conventional nitrogen-doped graphene, which pyridinic-N pyrrolic-N high total content (72.65%) both reduction evolution reactions, thus...
The quasi-intercalation reaction mechanism in solid-state Li–SPAN batteries leads to fast kinetics and small volume change.
A conventional two-electrode rechargeable zinc-air battery (RZAB) has two major problems: 1) opposing requirements for the oxygen reduction (ORR) and evolution (OER) reactions from catalyst at air cathode; 2) zinc-dendrite formation, hydrogen generation, zinc corrosion anode. To tackle these problems, a three-electrode RZAB (T-RZAB) including hydrophobic discharge cathode, hydrophilic charge zinc-free anode is developed. The decoupled cathodes enable fast ORR OER kinetics, avoid oxidization...
Aqueous zinc batteries possess intrinsic safety and cost-effectiveness, but dendrite growth side reactions of anodes hinder their practical application. Here, we propose the extended substrate screening strategy for stabilizing verify its availability (d
Abstract Solid‐state lithium–sulfur (Li–S) batteries using gel polymer electrolytes have attracted much attention owing to their higher safety compared liquid and lower interfacial resistance ceramic electrolytes. However, except for unsatisfactory lithium‐ion conductivity, relatively low mechanical strength, the unavoidable polysulfide shuttling in still limits development. This work designed a poly(ethylene oxide)‐polyacrylonitrile (PEO‐PAN) copolymer membrane electrolyte, which PAN fibers...
Flexible lithium-sulfur (Li-S) batteries with high mechanical compliance and energy density are highly desired. This manuscript reported that large-area freestanding MXene (Ti3C2Tx) film has been obtained through a scalable drop-casting method, significantly improving adhesion to the sulfur layer under continuously bent. Titanium oxide anchored on holey Ti3C2Tx (TiO2/H-Ti3C2Tx) was also produced by well-controlled oxidation of few-layer Ti3C2Tx, which greatly facilitates lithium ion...
Abstract Aqueous zinc‐based batteries (ZBs) have been widely investigated owing to their intrinsic safety, low cost, and simple assembly. However, the actual behavior of Zn deposition under large current density is still a severe issue associated with obscure mechanism interpretation ZBs high loading. Here, differing from conventional understanding that short circuit induced by dendrite penetrating (10–100 mA cm −2 ), separator permeation effect unraveled illustrate paradox between smooth...
The advancement of rechargeable zinc–air batteries (RZABs) faces challenges from the pronounced polarization and sluggish kinetics oxygen reduction evolution reactions (ORR OER). Single-atom catalysts offer an effective solution, yet their insufficient or singular catalytic activity hinders development. In this work, a dual single-atom catalyst, FeCo-SAs, was fabricated, featuring atomically dispersed N3–Fe–Co–N4 sites on N-doped graphene nanosheets for bifunctional activity. Introducing Co...
Hard carbon exhibits high theoretical capacity for sodium-ion batteries. However, its practical application suffers from low electric conductivity, poor electrochemical stability, and sluggish kinetics. To tackle these challenges, novel nitrogen-doped spheres with mesopores, ultrathin nanostructure, optimal graphitization are prepared by a three-step procedure. We find that the as-prepared sample (NMCSs-800) an structure nitrogen content delivers reversible sodium storage of 334.7 mA h/g at...
A novel biopolymer-chitosan based supramolecular hydrogel type solid state electrolyte was prepared and demonstrated high ionic conductivity, excellent thermal stability, mouldability, flexibility.
A robust and highly active nanomaterial for pseudocapacitors hydrogen production by growing vanadium pentoxide on the surface of nickel sulfide.