A5069407062- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Extraction and Separation Processes
- Advanced battery technologies research
- Electrochemical Analysis and Applications
- Inorganic Chemistry and Materials
- Analytical Chemistry and Sensors
- Layered Double Hydroxides Synthesis and Applications
- Transition Metal Oxide Nanomaterials
- Fuel Cells and Related Materials
- Semiconductor materials and devices
- Gas Sensing Nanomaterials and Sensors
- Inorganic Fluorides and Related Compounds
- Membrane-based Ion Separation Techniques
- Ionic liquids properties and applications
- Crystal Structures and Properties
- MXene and MAX Phase Materials
- Organic Electronics and Photovoltaics
- Semiconductor materials and interfaces
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical sensors and biosensors
- Magnesium Alloys: Properties and Applications
Bar-Ilan University
2016-2025
Ministry of Energy
2024-2025
Institute of Nanotechnology
2024
Robert Bosch (Germany)
2023
Alzheimer's Association of Israel
2014-2019
University of Oxford
2017
Argonne National Laboratory
2014
National Cheng Kung University
2014
Auburn University
2014
University of St Andrews
2014
Li(metal)–sulfur (Li–S) systems are among the rechargeable batteries of highest possible energy density due to high capacity both electrodes. The surface chemistry developed on Li electrodes in electrolyte solutions for Li–S was rigorously studied using Fourier transform infrared and X-ray photoelectron spectroscopies. A special methodology handling highly reactive samples. It analyze contribution solvents such as 1-3 dioxolane, , polysulfide additives protective films that formed role a...
Lithium ion batteries have become an integral part of our daily lives. Among a number different cathode materials nickel-rich LiNixCoyMnzO2 is particularly interesting. The material can deliver high capacities ∼195 mAh g−1 putting it on the map for electric vehicles. With increasing nickel content, issues arise in limiting its performance. Li/Ni mixing, highly reactive surface and formation micro cracks are most pressing ones. An overview recent literature exploring these phenomena herein...
The electroanalytical behavior of thin electrodes is elucidated by the simultaneous application three techniques: slow‐scan‐rate cyclic voltammetry (SSCV), potentiostatic intermittent titration technique, and electrochemical impedance spectroscopy. data were treated within framework a simple model expressed Frumkin‐type sorption isotherm. experimental SSCV curves well described an equation combining such isotherm with Butler‐Volmer for slow interfacial Li‐ion transfer. apparent attraction...
Abstract Li and Mn‐rich layered oxides, x 2 MnO 3 ·(1– )LiMO (M=Ni, Mn, Co), are promising cathode materials for Li‐ion batteries because of their high specific capacity that can exceed 250 mA h g −1 . However, these suffer from 1 st cycle irreversible capacity, gradual fading, low rate capability, a substantial charge‐discharge voltage hysteresis, large average discharge decay during cycling. The latter detrimental phenomenon is ascribed to structural transformations upon cycling cathodes...
To initiate wider discussion about promising research directions, this paper highlights a number of challenges in the development rechargeable Mg batteries, especially those related to slow solid-state diffusion common hosts. With focus on intercalation mechanism, we compare for first time different strategies proposed literature developing battery cathodes, like use (i) nanoscale cathode materials; (ii) hybrid compounds containing bound water or other additional anion groups that can...
Slow scan rate cyclic voltammetry (CV) and highly resolved (with respect to potential) electrochemical impedance spectroscopy (EIS) have been applied for lithiated graphite electrodes of different thicknesses. The spectra successfully modeled the whole range intercalation potentials, using a combination Voigt-type equivalent circuit analog Frumkin Melik-Gaykazyan (FMG) model. analog, which is series R||C circuits, models Li ion migration through surface films covering particles. FMG model...
Abstract One of the major hurdles Ni‐rich cathode materials Li 1+ x (Ni Co z Mn ) w O 2 , y > 0.5 for lithium‐ion batteries is their low cycling stability especially compositions with Ni ≥ 60%, which suffer from severe capacity fading and impedance increase during at elevated temperatures (e.g., 45 °C). Two promising surface structural modifications these to alleviate above drawback are (1) coatings by electrochemically inert inorganic compounds ZrO or (2) lattice doping cations like Zr...
Electrolyte solutions for rechargeable Mg batteries were developed, based on reaction products of phenyl magnesium chloride (PhMgCl) Lewis base and acid in ethers. The transmetallation these ligands forms with ions as the major ionic species, analyzed by multinuclei nuclear magnetic resonance spectroscopy. Tetrahydrofuran (THF) exhibit optimal properties: highly reversible deposition (100% cycling efficiency) low overvoltage: electrochemical windows wider than . A specific conductivity could...
The solid state diffusion of lithium into graphite during electrochemical intercalation processes was investigated using potentiostatic intermittent titration (PITT) and impedance spectroscopy (EIS). coefficient (D) as a function the level (X) electrode potential (E) calculated on basis both methods gave similar results. D vs X or E plots were found to be nonmonotonous, with three pronounced minima at same potentials in which cyclic voltammetry these systems shows peaks related phase...
Rechargeable magnesium batteries have lately received great attention for large-scale energy storage systems due to their high volumetric capacities, low materials cost, and safe characteristic. However, the bivalency of Mg2+ ions has made it challenging find cathode operating at voltages with decent (de)intercalation kinetics. In an effort overcome this challenge, we adopt unconventional approach engaging crystal water in layered structure Birnessite MnO2 because can effectively screen...
Herein the first inorganic magnesium salt solution capable of highly reversible electrodeposition is presented. Synthesized by acid-base reaction MgCl2 and Lewis acidic compounds such as AlCl3, this class demonstrates upwards 99% Coulombic efficiency, deposition overpotential <200 mV, anodic stability 3.1 V.
Ni-rich materials of layered structure LiNixCoyMnzO2, x > 0.5, are promising candidates as cathodes in high-energy-density Li-ion batteries for electric vehicles. The structural and cycling stability can be remarkably improved by doping with a small amount extrinsic multivalent cations. In this study, we examine development fast screening methodology LiNi0.8Co0.1Mn0.1O2 cations Mg2+, Al3+, Si4+, Ti4+, Zr4+, Ta5+ "top-down" approach. cathode material is coated precursor layer that contains...
Li and Mn‐rich layered cathodes, despite their high specific capacity, suffer from capacity fading discharge voltage decay upon cycling. Both of cathodes are stabilized cycling by optimized Al doping. Doping cathode materials 1.2 Ni 0.16 Mn 0.56 Co 0.08 O 2 on the account manganese (as reflected stoichiometry) results in a decrease but increases pronouncedly stability 0.51 0.05 exhibits 96% retention as compared to 68% for after 100 cycles. This doping also reduces average cycling, which is...
W-doping produced the two-phase (<italic>Fm</italic>3̄<italic>m</italic> and <italic>R</italic>3̄<italic>m</italic>) structure which improved cycling thermal stability of Ni-rich layered cathodes.
Electrochemical, surface, and structural studies related to rechargeable Mg batteries were carried out with monolithic thin-film cathodes comprising layered V2O5 MoO3. The reversible intercalation reactions of these electrodes ion in nonaqueous salt solutions explored using a variety analytical tools. These included slow-scan rate cyclic voltammetry (SSCV), chrono-potentiometry (galvanostatic cycling), Raman photoelectron spectroscopies, high-resolution microscopy, XRD. exhibited Mg-ion at...
The high charge-state dopant Zr<sup>4+</sup> improves the structural stability and electrochemical behavior of lithiated transition metal oxide LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub>.