A5062875384- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Perovskite Materials and Applications
- Advanced Battery Technologies Research
- Concrete Corrosion and Durability
- Corrosion Behavior and Inhibition
- Electrocatalysts for Energy Conversion
- Smart Materials for Construction
- Hydrogen embrittlement and corrosion behaviors in metals
- High voltage insulation and dielectric phenomena
- Non-Destructive Testing Techniques
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Engineering Applied Research
- Fuel Cells and Related Materials
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Electromagnetic Launch and Propulsion Technology
Peking University Shenzhen Hospital
2020-2024
Peking University
2019-2023
University of Science and Technology Beijing
2017-2019
University of Science and Technology
2019
Abstract In recent years, Prussian blue analogue (PBA) materials have been widely explored and investigated in energy storage/conversion fields. Herein, the structure/property correlations of PBA as host frameworks for various charge‐carrier ions (e.g., Na + , K Zn 2+ Mg Ca Al 3+ ) is reviewed, optimization strategies to achieve advanced performance electrodes are highlighted. Prospects further applications proton, ammonium‐ion, multivalent‐ion batteries summarized, with extra attention...
Aqueous zinc (Zn) batteries (AZBs) are widely considered as a promising candidate for next-generation energy storage owing to their excellent safety features. However, the application of Zn anode is hindered by severe dendrite formation and side reactions. Herein, an interfacial bridged organic-inorganic hybrid protection layer (Nafion-Zn-X) developed complexing inorganic Zn-X zeolite nanoparticles with Nafion, which shifts ion transport from channel in Nafion hopping mechanism interface....
Abstract Aqueous Zn‐MnO 2 batteries using mild electrolyte show great potential in large‐scale energy storage (LSES) application, due to high safety and low cost. However, structure collapse of manganese oxides upon cycling caused by the conversion mechanism (e.g., from tunnel layer structures for α‐, β‐, γ‐phases) is one most urgent issues plaguing its practical applications. Herein, avoid phase issue enhance battery performance, a structurally robust novel oxide MnO H 0.16 (H O) 0.27 (MON)...
Abstract The recent developments in rechargeable aqueous batteries have witnessed a burgeoning interest the mechanism of proton transport cathode materials. Herein, for first time, we report Grotthuss α‐MnO 2 which features wide [2×2] tunnels. Exemplified by substitution doping Ni (≈5 at.%) that increases energy density electrode ≈25 %, reveal close link between tetragonal‐orthorhombic (TO) distortion lattice and diffusion kinetics protons Experimental theoretical results verify dopants can...
Recent years have witnessed a booming interest in grid-scale electrochemical energy storage, where much attention has been paid to the aqueous zinc ion batteries (AZIBs). Among various cathode materials for AZIBs, manganese oxides risen prominence due their high density and low cost. However, sluggish reaction kinetics poor cycling stability dictate against practical application. Herein, we demonstrate combined use of defect engineering interfacial optimization that can simultaneously...
Aqueous Zn batteries (AZBs) are a promising energy storage technology, due to their high theoretical capacity, low redox potential, and safety. However, dendrite growth parasitic reactions occurring at the surface of metallic result in severe instability. Here we report new method achieve ultrafine nanograin anodes by using ethylene glycol monomethyl ether (EGME) molecules manipulate zinc nucleation processes. It is demonstrated that EGME complexes with Zn2+ moderately increase driving force...
By virtue of its tunable electrical conductivity, remarkable solution processing capability, and great biocompatibility, polyaniline (PANI) has been recognized as an attractive active material for use in biological chemical ("bio/chemical") sensors. This Spotlight article focuses on the structure characteristics PANI-based materials corresponding device-level sensing performance. bio/chemical sensors, such chemi-resistive electrochemical transistor-based are systematically elucidated based...
Abstract LiCoO 2 (LCO) is the most successful cathode material for commercial lithium‐ion batteries. Cycling LCO to high potentials up 4.5 V or even 4.6 can significantly elevate capacity but cause structural degradation due serious surface side reaction between highly oxidized Co 4+ and O − species with organic electrolytes. To tackle this concern, a new strategy, constructing cation anion dual gradients at of (DG‐LCO), proposed. Specifically, electrochemically inactive are selected...
Abstract Aqueous zinc‐ion battery (AZB) is a promising candidate for next‐generation energy storage owing to inherent safety and low cost. However, AZBs are currently plagued by Zn dendrite growth undesirable side‐reactions, leading poor cycling stability premature failure. To restrain the uncontrollable growth, unique separator developed based on polyacrylonitrile/graphene oxide (abbreviated as PG) composite nanofibers, which contain abundance of zincophilicity functional groups regulate...
Abstract Aqueous zinc (Zn) batteries (AZBs) are widely considered as a promising candidate for next‐generation energy storage owing to their excellent safety features. However, the application of Zn anode is hindered by severe dendrite formation and side reactions. Herein, an interfacial bridged organic–inorganic hybrid protection layer (Nafion‐Zn‐X) developed complexing inorganic Zn‐X zeolite nanoparticles with Nafion, which shifts ion transport from channel in Nafion hopping mechanism...
The sulfonic groups are optimized in the polymer, which serve as effective active sites for zinc-ion diffusion. reversibility of zinc anode is highly improved consequently.
Abstract The intercalation of protons represents a notable component for energy storage in aqueous zinc‐ion batteries. However, the mechanism proton transport metal oxide cathodes, especially related to how cation distribution modulates proton‐conducting lanes, remains far from consensus due lack suitable model materials. Here, taking spinel ZnMn 2 O 4 cathode as prototype, it is disclosed that deficiency one half lattice Zn ions can triple its specific capacity at high rates, which...
Abstract The practical application of rechargeable aqueous zinc batteries is impeded by dendrite growth, especially at high areal capacities and current densities. Here, this challenge addressed proposing perfluoro(2‐ethoxyethane)sulfonic (Zn(PES) 2 ) as a battery electrolyte. This new amphipathic salt, with hydrophobic perfluorinated tail, can form an anode protecting layer, in situ, biomimetic lipid‐bilayer structure. layer limits the contact free H O offers fast Zn 2+ transport pathways,...
Abstract The recent developments in rechargeable aqueous batteries have witnessed a burgeoning interest the mechanism of proton transport cathode materials. Herein, for first time, we report Grotthuss α‐MnO 2 which features wide [2×2] tunnels. Exemplified by substitution doping Ni (≈5 at.%) that increases energy density electrode ≈25 %, reveal close link between tetragonal‐orthorhombic (TO) distortion lattice and diffusion kinetics protons Experimental theoretical results verify dopants can...
We reveal a “bulk to nano-crystalline” structure evolution in Zn 3 V O 8 spinel, and proton 2+ co-intercalation mechanism for energy storage of this nano-crystalline Zn–V–O which guarantees an excellent electrode performance.
Abstract The value of aqueous zinc‐ion rechargeable batteries is held back by the degradation Zn metal anode with repeated cycling. While raising operating current density shown to alleviate this degradation, such high cycling rates are not compatible full cells, as they cause Zn‐host cathodes undergo capacity decay. A simple approach that improves performance while using more modest cathode‐compatible densities required. This work reports reversible planar deposition under can instead be...
Manganese oxides are promising host materials in rechargeable aqueous batteries due to their low cost and high capacity; however, practical applications have long been restricted by sluggish reaction kinetics poor cycling stability. Herein, the layered K0.36H0.26MnO2·0.28H2O (K36) with a proton Zn2+ cointercalation mechanism leads progressive phase evolution from layer-type K36 hybrid KxHyZnzMnO2·nH2O spinel-type ZnMn2O4 nanocrystal after long-term cycle. Accordingly, shows specific capacity...
Abstract The zinc dendrite growth generally relies upon a “positive‐feedback” mode, where the fast‐grown tips receive higher current densities and ion fluxes. In this study, self‐limiting polyacrylamide (PAM) hydrogel that presents negative feedback to is developed. monomers are purposefully polymerized at tips, then reduces local density flux by limiting diffusion with abundant functional groups. As consequence, accumulation restricted, (002) facets‐oriented deposition achieved. Moreover,...
Zinc-air batteries (ZABs) have the advantages of high energy density and safety but their large-scale application is hindered by sluggish kinetics four-electron aqueous O2 redox reactions. Widely used Ruthenium (Ru)-based catalysts possess intrinsic oxygen evolution catalytic activity suffer from insufficient reduction reaction (ORR) performance. Herein, to optimize ORR Ru-based catalyst, an iron (Fe)-coordinated, bimetallic RuFe cluster constructed homogeneously dispersed within nitrogen...
Heteroatom-doped carbon-based nanosized materials are considered as potential anode candidates in the field of potassium-ion batteries, which ease modulations on their doped heteroatoms, morphologies, and pore structures demonstrates great potentials to enhance potassium storage. However, systematic investigation analysis effects still absent. Herein, a series hierarchical nitrogen-doped microporous carbon nanorod-assembed superstructures with secondary heteroatoms (P, S, B) presented...