A5015561003- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Polyoxometalates: Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Perovskite Materials and Applications
- Ionic liquids properties and applications
- Layered Double Hydroxides Synthesis and Applications
- Extraction and Separation Processes
- Conducting polymers and applications
- Nanoporous metals and alloys
- Ammonia Synthesis and Nitrogen Reduction
- Metallurgy and Material Science
- Fuel Cells and Related Materials
- Gas Sensing Nanomaterials and Sensors
- Thermal Expansion and Ionic Conductivity
- Nanomaterials for catalytic reactions
- Inorganic and Organometallic Chemistry
- CO2 Reduction Techniques and Catalysts
- Coordination Chemistry and Organometallics
- Electrodeposition and Electroless Coatings
- Covalent Organic Framework Applications
- Catalytic Processes in Materials Science
University of Science and Technology of China
2020-2025
Hefei National Center for Physical Sciences at Nanoscale
2023-2025
City University of Hong Kong
2024-2025
Nankai University
2018-2024
Aqueous batteries (ABs) have attracted increasing attention because of their inherent safety and low cost. Nevertheless, hydrogen evolution reaction (HER) at the anode presents severe challenges for stable safe operation ABs. Instead passivating surface to hinder HER kinetics, a design strategy is proposed here suppress via alternating its thermodynamics pathway. Addition bond acceptor, dimethyl sulfoxide (DMSO) can delay onset potential by as much 1.0 V (on titanium mesh). Spectral...
Aqueous zinc-ion batteries are promising candidates for grid-scale energy storage because of their intrinsic safety, low cost, and high intensity. However, lack suitable cathode materials with both excellent rate performance cycling stability hinders further practical application aqueous batteries. Here, a nanoflake-self-assembled nanorod structure Ca0.28 MnO2 ·0.5H2 O as Zn-insertion material is designed. The exhibits reversible capacity 298 mAh g-1 at 175 mA long-term over 5000 cycles no...
Electrocatalytic CO2 reduction reaction (CO2RR) is one of the most promising routes to facilitate carbon neutrality. An alkaline electrolyte typically needed promote production valuable multi-carbon molecules (such as ethylene). However, between and OH- consumes a significant quantity CO2/alkali causes rapid decay CO2RR selectivity stability. Here, we design catalyst-electrolyte interface with an effective electrostatic confinement in situ generated improve ethylene electrosynthesis from...
The issues of inherent low anodic stability and high flammability hinder the deployment ether-based electrolytes in practical high-voltage lithium metal batteries. Here, we report a rationally designed electrolyte with chlorine functionality on ether molecular structure to address these critical challenges. chloroether-based demonstrates Li Coulombic efficiency 99.2 % capacity retention >88 over 200 cycles for Ni-rich cathodes at an ultrahigh cut-off voltage 4.6 V (stable even up 4.7 V). not...
Novel small sulfur heterocyclic quinones (6a,16a-dihydrobenzo[b]naphtho[2',3':5,6][1,4]dithiino[2,3-i]thianthrene-5,7,9,14,16,18-hexaone (4S6Q) and benzo[b]naphtho[2',3':5,6][1,4]dithiino[2,3-i]thianthrene-5,9,14,18-tetraone (4S4Q)) are developed by molecule structural design method as cathode for aqueous zinc-organic batteries. The conjugated thioether (-S-) bonds connected units not only improve the conductivity of compounds but also inhibit their dissolution both extended π-conjugated...
Electrolytes are critical for the reversibility of various electrochemical energy storage systems. The recent development electrolytes high-voltage Li-metal batteries has been counting on salt anion chemistry building stable interphases. Herein, we investigate effect solvent structure interfacial reactivity and discover profound designed monofluoro-ether in anion-enriched solvation structures, which enables enhanced stabilization both cathodes anodes. Systematic comparison different...
Abstract Organic cathodes for aqueous zinc‐ion batteries (AZIBs) feature intrinsic flexibility and favorable kinetics, but they suffer from high solubility. Herein, a partial charge regulation strategy is deployed by designing small organic molecule with extended π ‐conjugated plane, namely benzo[i]benzo[6′,7′]quinoxalino[2′,3′:9,10]phenanthro[4,5‐abc]phenazine‐5,10,16,21‐tetraone (PTONQ). The equalization of active sites induced the plane PTONQ combined aromaticity renders low solubility,...
The stable cycling of Mg-metal anodes is limited by several problems, including sluggish electrochemical kinetics and passivation at the Mg surface. In this study, we present a high-entropy electrolyte composed lithium triflate (LiOTf) trimethyl phosphate (TMP) co-added to magnesium bis(trifluoromethane sulfonyl)imide (Mg(TFSI)2 /1,2-dimethoxyethane (DME) significantly improve performance anodes. as-formed Mg2+ -2DME-OTf- -Li+ -DME-TMP solvation structure effectively reduced -DME interaction...
Abstract Constraining the electrochemical reactivity of free solvent molecules is pivotal for developing high-voltage lithium metal batteries, especially ether solvents with high Li compatibility but low oxidation stability ( <4.0 V vs + /Li). The typical concentration electrolyte approach relies on nearly saturated coordination to molecules, which confronted severe side reactions under voltages >4.4 V) and extensive exothermic between reactive anions. Herein, we propose a molecular...
Abstract Uncontrollable zinc (Zn) plating and hydrogen evolution greatly undermine Zn anode reversibility. Previous electrolyte designs focus on suppressing H 2 O reactivity, however, the accumulation of alkaline byproducts during battery calendar aging cycling still deteriorates performance. Here, we present a direct strategy to tackle such problems using strong Brønsted acid, bis(trifluoromethanesulfonyl)imide (HTFSI), as additive. This approach reformulates interfacial chemistry both...
The development of efficient, stable, and low-cost bifunctional catalysts for the hydrogen evolution/oxidation reaction (HER/HOR) is critical to promote application gas batteries in large scale energy storage systems. Here we demonstrate a non-noble metal high-entropy alloy grown on Cu foam (NNM-HEA@CF) as self-supported catalytic electrode nickel-hydrogen (Ni-H2) batteries. Experimental theoretical calculation results reveal that NNM-HEA catalyst greatly facilitates HER/HOR process through...
Due to the merits of low cost, safety, environmental friendliness, and abundant sodium reserves, non-aqueous aqueous sodium-ion batteries are wonderful alternatives for large-scale energy storage.
Localized high concentration electrolyte for aqueous zinc batteries using 1,4-dioxane as the diluent enables an ultrahigh coulombic efficiency of Zn metal up to 99.7%.
Nonflammable electrolytes are critical for the safe operation of high-voltage lithium-ion batteries (LIBs). Although organic phosphates effective flame retardants, their poor electrochemical stability with a graphite (Gr) anode and Ni-rich cathodes would lead to deterioration electrode materials fast capacity decay. Herein, we develop high-performance electrolyte formulation (4.6 V-class) LIBs using flame-retarding ethoxy(pentafluoro) cyclotriphosphazene (PFPN) as non-solvating diluent...
Manganese oxides are highly desirable for the cathode of rechargeable aqueous zinc ion batteries (AZIBs) owing to their low cost and high abundance. However, terrible structure stability manganese oxide limits its practical application. Here, it is demonstrated that hydrogen-bond shielding effect can improve electrochemical performance oxide. Briefly, (NH4 )0.125 MnO2 (NHMO) prepared by introducing NH4+ into tunnel α-MnO2 . The robust hydrogen bonds between N-H host O atoms stabilize lattice...
Solid-state batteries have great potential for future energy storage because of their high density and enhanced safety. However, uneven Li plating/stripping due to a poor Li/solid-state electrolyte (SSE) contact infiltration within the SSE local electronic conductivity at grain boundaries are major obstacles. Here, interface chemistry garnet-based SSEs is thoroughly transformed via impregnation polyphosphoric acid (PPA). The nanometer PPA coating not only acts as lithiophilic elastic...
Electrolyte freezing under low temperatures is a critical challenge for the development of aqueous batteries (ABs). While lowering point electrolyte has caught major research efforts, limited attention been paid to structural evolution during process and regulating frozen structure temperature ABs. Here, we reveal formation interconnected liquid regions ion transport in electrolytes with various situ variable-temperature technologies. More importantly, low-temperature performance ABs was...
Aqueous sodium ion batteries (ASIBs) with the characteristics of long cycling life, all-climate compatibility, and low cost need to be developed urgently. Herein, a novel dual-ion battery baesd on Na+ ClO4– electrochemistry is proposed, consisting an nano/microstructured Ni(OH)2 (NNH) cathode, carbon-coated NaTi2(PO4)3 (NTP@C) anode, 2 M NaClO4 aqueous (aq.) electrolyte. In charging process, ions are inserted into form Na3Ti2(PO4)3, stored in electric double layers NNH cathode; reverse...
Ethers are promising electrolytes for lithium (Li) metal batteries (LMBs) because of their unique stability with Li metal. Although intensive research on designing anion-enriched electrolyte solvation structures has greatly improved electrochemical stabilities, ether approaching an anodic bottleneck. Herein, we reveal the strong correlation between structure and oxidation stability. In contrast to previous designs weakly solvating solvents enhanced anion reactivities, triglyme (G3)-based...