A5059767044- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Crystallography and molecular interactions
- Ionic liquids properties and applications
- Advanced Battery Technologies Research
- Advanced battery technologies research
- Synthesis and properties of polymers
- Flame retardant materials and properties
- Conducting polymers and applications
- Inorganic Chemistry and Materials
- Material Properties and Applications
- Supercapacitor Materials and Fabrication
- Inorganic Fluorides and Related Compounds
- Organoboron and organosilicon chemistry
- Layered Double Hydroxides Synthesis and Applications
- Luminescence and Fluorescent Materials
- Silicone and Siloxane Chemistry
- Inorganic and Organometallic Chemistry
- Asymmetric Hydrogenation and Catalysis
- Metal complexes synthesis and properties
- Organometallic Complex Synthesis and Catalysis
- Advancements in Materials Engineering
- Hydrogen Storage and Materials
Technical University of Denmark
2019-2024
Warsaw University of Technology
2014-2023
Łukasiewicz Research Network - Industrial Chemistry Institute
2004-2023
Łukasiewicz Research Network
2023
Centre National de la Recherche Scientifique
2018-2021
Chalmers University of Technology
2015-2020
Faculty (United Kingdom)
2019
University of Warsaw
2016-2019
Adam Mickiewicz University in Poznań
2008-2010
University of Bristol
2009-2010
Emerging energy storage systems based on abundant and cost-effective materials are key to overcome the global climate crisis of 21st century.
Sodium-ion batteries (SIBs) are currently being considered for large-scale energy storage. Optimization of SIB electrolytes is, however, still largely lacking. Here we exhaustively evaluate NaPF6 in diglyme as an electrolyte choice, via both physicochemical properties and extensive electrochemical tests including half well full cells. Fundamentally, the ionic conductivity is found to be quite comparable carbonate based obey fractional Walden rule with viscosity. We find Na metal work a...
Abstract NASCION‐type Li conductors have great potential to bring high capacity solid‐state batteries realization, related its properties such as ionic conductivity, stability under ambient conditions, wide electrochemical window, and inexpensive production. However, their chemical thermal instability toward metallic lithium (Li) has severely hindered attempts utilize anode material in NASCION‐based battery systems. In this work, it is shown how a tailored multifunctional interlayer between...
Abstract The development of multivalent metal (such as Mg and Ca) based battery systems is hindered by lack suitable cathode chemistry that shows reversible multi‐electron redox reactions. Cationic centres in the classical cathodes can only afford stepwise single‐electron transfer, which are not ideal for multivalent‐ion storage. charge imbalance during ion insertion might lead to an additional kinetic barrier mobility. Therefore, exhibit slope‐like voltage profiles with insertion/extraction...
Magnesium batteries are one of the most promising post-lithium technologies. One main challenges preventing its commercialization is to find an efficient and safe electrolyte. The electrolyte, playing role blood in a battery, interacts with all battery components must be highly compatible them. development Cl-free electrolyte systems desired avoid corrosion issues, many studies suggest magnesium tetrakis(hexafluoroisopropyloxy)borate (Mg[B(hfip)4]2) as best candidates terms electrochemical...
Magnesium-Sulfur batteries are one of most appealing options among the post-lithium battery systems due to its potentially high energy density, safe and sustainable electrode materials. The major practical challenges originated from soluble magnesium polysulfide intermediates their shuttling between electrodes, which cause overpotentials, low sulfur utilization, poor Coulombic efficiency. Herein, a functional Mo6 S8 modified separator is designed effectively address these issues. Both...
Ten bis(boranils) differently substituted at the boron atom and iminophenyl groups were synthesized from 1,5-dihydroxynaphthalene-2,6-dicarboxaldehyde using a simple one-pot protocol. Their photophysical properties can be easily tuned in wide range by variation of substituents. absorption emission spectral bands are significantly red-shifted (λmax = 495-590 nm, λem 533-683 nm) when compared with boranils, whereas fluorescence quantum yields strongly improved to reach 83%. The attachment...
Electrolyte additives are pivotal for stabilization of lithium-ion batteries, by suppressing capacity loss through creation an engineered solid-electrolyte-interphase-layer (SEI-layer) at the negative electrode and thereby increasing lifetime. Here, we compare four different sulfur-containing 5-membered-ring molecules as SEI-formers: 1,3,2-dioxathiolane-2,2-dioxide (DTD), propane-1,3-sultone (PS), sulfopropionic acid anhydride (SPA), prop-1-ene-1,3-sultone (PES). Density functional theory...
SEI-forming additives play an important role in lithium-ion batteries, and the key to improving battery functionality is determine if, how, when these are reduced. Here, we tested a number of computational approaches methods best way predict describe properties additives. A wide selection factors were evaluated, including influences solvent lithium cation as well DFT functional basis set used. An optimized methodology was employed assess usefulness different descriptors.
Abstract Lithium‐sulfur (Li‐S) batteries are considered one of the most promising energy storage technologies, possibly replacing state‐of‐the‐art lithium‐ion (Li‐ion) owing to their high density, low cost, and eco‐compatibility. However, migration high‐order lithium polysulfides (LiPs) surface sluggish electrochemical kinetics pose challenges commercialization. The interactions between cathode LiPs can be enhanced by doping carbon host with heteroatoms, however relatively content (<10%)...
Abstract A new family of fluorine-free solid-polymer electrolytes, for use in sodium-ion battery applications, is presented. Three novel sodium salts withdiffuse negative charges: pentacyanopropenide (NaPCPI), 2,3,4,5-tetracyanopirolate (NaTCP) and 2,4,5-tricyanoimidazolate (NaTIM) were designed andtested a poly(ethylene oxide) (PEO) matrix as polymer electrolytes anall-solid battery. Due to unique, non-covalent structural configurations anions, improved ionic conductivities observed. As an...
A series of 8 luminescent borafluorene complexes were extensively studied both experimentally and theoretically in order to elucidate the effect organoboron moiety rigidification on physicochemical properties these compounds. Due spiro geometry boron atom, ligand units are perpendicularly aligned, which considerably affects flexibility molecule as well its solid-state structure. Through comparative analysis with close diphenyl analogues, we show how structural features influence thermal,...
The performance of rechargeable magnesium batteries is strongly dependent on the choice electrolyte. desolvation multivalent cations usually goes along with high energy barriers, which can have a crucial impact plating reaction. This lead to significantly higher overpotentials for deposition compared dissolution. In this work we combine experimental measurements DFT calculations and continuum modelling analyze Mg in various solvents. Jointly, these methods provide better understanding...
Abstract Calcium‐metal batteries have received growing attention recently after several studies reporting successful metal plating and stripping with organic electrolytes. Given the low redox potential of metallic calcium, its surface is commonly covered by a passivation layer grown accumulation electrolyte decomposition products. The presence borate species in this has been shown to be key parameter allowing for Ca 2+ migration favoring electrodeposition. Here, boron‐based additives are...
Gel polymer electrolytes composed of deep eutectic solvent acetamide4 :Zn(TFSI)2 and poly(ethylene oxide) (PEO) are prepared by using a fast, solvent-free procedure. The effect the PEO molecular weight its concentration on physicochemical electrochemical properties studied. Gels with ultrahigh molecular-weight present pseudo-solid behavior ionic conductivity even higher than that original liquid electrolyte. A decrease in dendritic growth soft gels contents up to 1 wt % is demonstrated....
Abstract The dimethylquaterpyridine ligand L1 reacts with Cu I and Ag to give dinuclear complexes of “helicate” form, in which the metals are an approximate tetrahedral coordination, whereas reactions Co II Zn provide mononuclear complexes, apparently six‐coordinate markedly distorted octahedral retains a helical conformation. Oxidation methyl substituents into carboxylic acid groups, followed by esterification, gives L2 , also forms helicate complex; one ester groups appears be involved...
We present complementary series of crystal structures lithium salts containing 4,5-dicyanoimidazolato anions substituted with perfluoroalkyl groups. Single-crystal X-ray analysis 10 adducts aprotic solvents, glymes (dimethyl ethers poly(ethylene glycols)) and crown ethers, have been performed to correlate their molecular properties spectroscopic thermal data. Comprehensive structure crystalline materials reveals valuable information about the coordination ability provides basis for...
Highly concentrated electrolytes based on Li-salts and chelating solvents, such as glymes, are promising for lithium batteries. This is due to their unique properties, higher electrochemical stabilities, compliance with high-voltage electrodes, low volatility flammability, inertness toward aluminum current collector corrosion. The nature of these properties originates from the molecular-level structure created in either solvate ionic liquids (SILs) or less common aggregates by...
Abstract The development of multivalent metal (such as Mg and Ca) based battery systems is hindered by lack suitable cathode chemistry that shows reversible multi‐electron redox reactions. Cationic centres in the classical cathodes can only afford stepwise single‐electron transfer, which are not ideal for multivalent‐ion storage. charge imbalance during ion insertion might lead to an additional kinetic barrier mobility. Therefore, exhibit slope‐like voltage profiles with insertion/extraction...
In this work we have investigated the charge storage mechanism of MnO2 electrodes in ionic liquid electrolytes. We show that by using an with a cation has ability to form hydrogen bonds active material (MnO2) on surface electrode, clear faradaic contribution is obtained. This situation found for liquids cations low pKa, i.e. protic liquids. For liquid, specific capacity at scan rate rates can be explained densely packed layer are standing geometry, proton directly interacting through bond...
The choice of electrolyte has a crucial influence on the performance rechargeable magnesium batteries. In multivalent electrolytes an agglomeration ions to pairs or bigger clusters may affect transport in and reaction at electrodes. this work formation is included general model for model, effect cluster transport, thermodynamics kinetics consistently taken into account. used analyze ion clustering tetrakis(hexafluoroisopropyloxy)borate dimethoxyethane as electrolyte. It becomes apparent that...