A5041890296- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Surface Modification and Superhydrophobicity
- Electrocatalysts for Energy Conversion
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Fuel Cells and Related Materials
- Fluid Dynamics and Heat Transfer
- Inorganic Chemistry and Materials
- Ionic liquids properties and applications
- Polyoxometalates: Synthesis and Applications
- Icing and De-icing Technologies
- Aerogels and thermal insulation
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Adhesion, Friction, and Surface Interactions
- Thermal Expansion and Ionic Conductivity
- Modular Robots and Swarm Intelligence
- Advanced battery technologies research
- Ammonia Synthesis and Nitrogen Reduction
- Hybrid Renewable Energy Systems
- High voltage insulation and dielectric phenomena
- Environmental Education and Sustainability
Helmholtz-Institute Ulm
2019-2025
Karlsruhe Institute of Technology
2019-2025
Wuhan University of Technology
2017-2024
Hubei University Of Economics
2021
Yuan Ze University
2008-2010
High-energy-density lithium-metal batteries face the challenge of developing functional electrolytes enabling both stabilization negative electrode and high-voltage positive electrodes (> 4 V versus Li+/Li). Herein, a low-volatility non-flammable ionic liquid electrolyte (ILE) incorporating two anions, bis(fluorosulfonyl) imide (FSI) bis(trifluoromethanesulfonyl)imide (TFSI), is successfully applied to overcome this challenge, employing high-energy, low-Co, Ni-rich positive-electrode...
Abstract The eco‐friendly and low‐cost Co‐free Li 1.2 Mn 0.585 Ni 0.185 Fe 0.03 O 2 is investigated as a positive material for Li‐ion batteries. electrochemical performance of the 3 at% Fe‐doped exhibits an optimal with capacity voltage retention 70 95%, respectively, after 200 cycles at 1C. effect iron doping on properties lithium‐rich layered materials by means in situ X‐ray diffraction spectroscopy galvanostatic intermittent titration technique during first charge–discharge cycle while...
Abstract Ionic liquids (ILs) have been widely explored as alternative electrolytes to combat the safety issues associated with conventional organic electrolytes. However, hindered by their relatively high viscosity, electrochemical performances of IL‐based cells are generally assessed at medium‐to‐high temperature and limited cycling rate. A suitable combination alkoxy‐functionalized cations asymmetric imide anions can effectively lower lattice energy improve fluidity IL material. The Li/Li...
Abstract “Anode‐less” sodium metal batteries (SMBs) with high energy may become the next‐generation due to abundant resources. However, their cycling performance is still insufficient for practical uses. Herein, a organic frameworks (MOF)‐derived copper‐carbon (Cu@C) composite developed as sodiophilic layer improve Coulombic efficiency (CE) and cycle life. The Cu particles can provide nucleation sites spatially guide Na deposition carbon framework offer void volume avoid changes during...
Abstract High‐voltage nickel‐rich layered cathodes possess the requisite, such as excellent discharge capacity and high energy density, to realize lithium batteries with higher density. However, materials suffer from structural interfacial instability at voltages (>4.3 V). To reinforce stability of these cathode elevated voltages, borate salts are investigated electrolyte additives generate a superior cathode‐electrolyte interphase. Specifically, use bis(oxalato)borate (LiBOB) leads an...
The poor compatibility of carbonate-based electrolytes with lithium metal anodes results in unstable solid electrolyte interphase, leading to dendrite formation, low Coulombic efficiency, and short cycle life. To address this issue, we propose a novel fluorinated that leverages bis(fluorosulfonyl)imide (LiFSI), along solvents. An extremely concentration nitrate exerts substantial impact on the Li ion solvation structure, inducing an anions-rich inorganic-rich interphase layer mainly composed...
Abstract Lithium‐rich layered oxides (LRLOs) exhibit specific capacities above 250 mAh g −1 , i.e., higher than any of the commercially employed lithium‐ion‐positive electrode materials. Such high result in energies, meeting tough requirements for electric vehicle applications. However, LRLOs generally suffer from severe capacity and voltage fading, originating undesired structural transformations during cycling. Herein, eco‐friendly, cobalt‐free Li 1.2 Ni 0.2 Mn 0.6 O 2 (LRNM), offering a...
Abstract Low Coulombic efficiency and significant capacity decay resulting from an unstable solid electrolyte interphase (SEI) dendritic growth pose challenges to the practical application of lithium‐metal batteries. In this study, a highly efficient protection layer induced by octaphenylsilsesquioxane (OPS) with LiFSI salt is investigated. The OPS exhibits strong adsorption energy lithium, its multi‐site gradient ability enables simultaneous capture 8 Li + uniform regulation ion flux....
The synthesis of a new ionic liquid (IL), consisting the symmetric tetra-butyl-phosphonium (P4444+) cation and (nonafluorobutanesulfonyl)(trifluoromethanesulfonyl)imide (IM14–) anion, via facile environmentally-friendly aqueous route is reported. novel P4444IM14 IL demonstrates excellent thermal electrochemical stability (beyond 6 V vs. Li+/Li0 (against Ni-foil)) in combination with good near-room temperature conductivity characteristics, such as non-measurable volatility exceptional...
Efficient electrochemical energy conversion technologies, such as fuel cells and water electrolyzers, require high current densities to lower the capital cost for large-scale commercialization but are often limited by mass transport. In this study, we demonstrated exceptional performances in proton electrolyte membrane electrolyzers (PEMWEs) creating micropatterned pore channels porous transport layer (MPC PTL) using a picosecond laser. This approach yielded an impressive performance of 1.82...
Anode-free sodium metal batteries (AFSMBs) represent a significant advancement in energy storage technology, offering high density and cost-effective solutions. However, their applications are impeded by the critical deposition...
Abstract The conventional electrolyte for rechargeable aqueous zinc metal batteries (AZMBs) breeds many problems such as Zn dendrite growth and side reaction of hydrogen evolution reaction, which are fundamentally attributed to the uneven ion flux owing high barriers desolvation diffusion Zn[(H 2 O) 6 ] 2+ clusters. Herein, modulate [Zn(H solvation structure, suspension engineering employed with electron‐delocalized catalytic nanoparticles is initially proposed expedite kinetics. As a proof,...
Nickel-rich layered cathodes suffer from unstable interface and structural collapse, leading to poor cycling stability in conventional carbonate-based electrolytes. Ionic liquid electrolytes promise enable high-safety high-specific energy lithium...
The use of water-soluble, abundant biopolymers as binders for lithium-ion positive electrodes is explored because it represents a great step forward towards environmentally benign battery processing. However, to date, most studies that employ, instance, carboxymethyl cellulose (CMC) binder have focused on rather low electrode areal loadings with limited relevance industrial needs. This study concerns the natural guar gum (GG) binding agent cobalt-free, high-voltage LiNi0.5 Mn1.5 O4 (LNMO),...
Surface repellency of liquid droplets with different surface tensions (23.4−73.2 mN/m) on nanostructured surfaces built one- and two-tier silica sphere stacking were investigated, contact angle hysteresis (CAH) work adhesion analyzed. It was shown that the binary nano- sub-micrometer-scaled roughened exhibited better toward oil drops tension 30 mN/m, CAH behavior strongly depended both types density three-phase line. This improvement from texture is attributed to facts (i) arrangement...