Innovation in the design of electrolyte materials is crucial for realizing next-generation electrochemical energy storage devices such as Li–S batteries. The theoretical capacity S cathode 10 times higher than that conventional used current Li–ion However, batteries suffer from dissolution lithium polysulfides, which are formed by redox reaction at cathode. Herein, we present simple solvate ionic liquids, glyme–Li salt molten complexes, excellent candidates because they greatly suppress...

A variety of binary mixtures aprotic ionic liquids (ILs) and lithium salts were thoroughly studied as electrolytes for rechargeable lithium–sulfur (Li–S) batteries. The saturation solubility sulfur polysulfides (Li2Sm), the active materials in Li–S battery, was quantitatively determined, performance battery using also investigated. Although nonionic low all evaluated, Li2Sm IL-based electrolyte strongly dependent on anionic structure, difference could be rationalized terms donor ability IL...

A room temperature ionic liquid (RTIL), N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)amide ([DEME][TFSA]), was used as an electrolyte solvent for lithium–sulfur (Li–S) batteries. Li[TFSA] dissolved into [DEME][TFSA] to prepare the electrolytes, and a molecular solvent—tetraethylene glycol dimethyl ether (TEGDME)—was reference. Discharge–charge tests of Li–S cells using these electrolytes were carried out. The discharge–charge cycle stability Coulombic...

A series of equimolar mixtures Li salts (LiX) and glymes (triglyme (G3) tetraglyme (G4)), [Li(glyme)]X with different anions (X: [N(SO2C2F5)2] = [BETI]; [N(SO2CF3)2] [TFSA]; [CF3SO3] [OTf]; BF4; NO3), were used as electrolytes to study the anionic effects on performance lithium–sulfur (Li–S) batteries. The dissolution lithium polysulfides (Li2Sm), which are discharge products elemental sulfur, was significantly suppressed in solvate ionic liquid (IL) electrolytes, seen [Li(G4)][BETI]...

We study the optical properties and band structures of (GeTe, ${\text{Sb}}_{2}{\text{Te}}_{3}$) pseudobinary compounds experimentally theoretically by using spectroscopic ellipsometry density functional calculations. measure dielectric functions thin films---GeTe, ${\text{Ge}}_{2}{\text{Sb}}_{2}{\text{Te}}_{5}$, ${\text{Ge}}_{1}{\text{Sb}}_{2}{\text{Te}}_{4}$, ${\text{Ge}}_{1}{\text{Sb}}_{4}{\text{Te}}_{7}$, ${\text{Sb}}_{2}{\text{Te}}_{3}$---by ellipsometry. anneal films at various...

Evaporation-induced electricity generation, harnessing natural vaporization of water, is spotlighted as a promising energy conversion system with showing off remarkable characteristics such continuous generation without artificial water motions. However, the vague origin and mechanism this phenomenon are obstacles for practical application. Herein, evaporation-induced was verified in terms "ionovoltaic" effect, ionic motion-induced charge carrier flows, through resistance-controllable metal...

Carbon nano onions produced by a sustainable and green synthetic method were utilized as high packing density electrode material for supercapacitor application.

Abstract With the timely advent of electric vehicle era, where battery stability has emerged as a major issue, all‐solid‐state batteries (ASSBs) have attracted significant attention game changer owing to their high stability. However, despite introduction densely packed solid electrolyte (SE) layer, when Li is used increase energy density cell, short‐circuit problem caused by protrusion unavoidable. Furthermore, most strategies control nonuniform growth are so complicated that they hinder...

The widespread adoption of Li-ion batteries is currently limited by their unstable electrochemical performance and high flammability under mechanical deformation conditions a relatively low energy density. Herein, high-energy-density lithium-sulfur (Li-S) are developed for applications in next-generation flexible electronics electric vehicles with long cruising distances. Freestanding high-S-loading carbon nanotubes cathodes assembled phosphorus (P)-doped interlayer coated on commercial...

Recently, various energy transducers driven by the relative motion of solids and liquids have been demonstrated. However, in relation to transducer, a proper understanding dynamic behavior ions remains unclear. Moreover, density is low for practical usage mainly due structural limitations, lack material development stemming from currently poor mechanisms, intermittently generated electricity given characteristics water (pulsed signals). Here, we verify hypothesis pertaining ion dynamics...

A novel framework of azide containing photo‐crosslinkable, conducting copolymer, that is, poly(azido‐styrene)‐random‐poly(triphenylamine) (X‐PTPA), is reported as a hole‐transporting material for efficient solution‐processed, multi‐layer, organic light emitting diodes (OLEDs). facile and energy‐efficient crosslinking process demonstrated with UV irradiation (254 nm, 2 mW/cm ) at short exposure time (5 min). By careful design X‐PTPA, in which 5 mol% the photo‐crosslinkable poly(azido‐styrene)...

All-solid-state batteries (ASSBs) have lately received enormous attention for electric vehicle applications because of their exceptional stability by engaging all-solidified cell components. However, there are many formidable hurdles such as low ionic conductivity, interface instability, and difficulty in the manufacturing process, its practical use. Recently, carbon, one representative conducting agents, turns out to largely participate side reactions with solid electrolyte, which finally...

Abstract The development of energy‐conversion devices using water movement has actively progressed. Ionovoltaic devices, which are driven by ion dynamics, show specificity different ions with identical charges output performance. However, the remains poorly understood because influence species on generated electric signals is not elucidated. in induced flowing droplet was investigated terms its relationship potential profile across solid–liquid interface.

We verified the origin of water-infiltration-induced electricity generation by an ionovoltaic effect, specifically, ion–surface interaction induced potential asymmetry in a porous CuO nanowire film.

Abstract Herein, the direct growth of polar orthorhombic phase in Hf 0.5 Zr O 2 (HZO) thin films is reported using Pulsed Laser Deposition (PLD). The HZO onto a preheated (700 °C) silicon substrate mimics rapid thermal annealing, which allows formation smaller crystallites (~9.7 nm) with large surface energy leading to stabilization metastable phase. Unlike atomic layer deposition (ALD) HZO, PLD more advantageous for depositing highly crystalline through optimized parameters, such as laser...

This paper addresses the mechanism for rectification in molecular tunneling junctions based on alkanethiolates terminated by a bipyridine group complexed with metal ion, that is, having structure AuTS-S(CH2)11BIPY-MCl2 (where M = Co or Cu) eutectic indium–gallium alloy top contact (EGaIn, 75.5% Ga 24.5% In). Here, AuTS-S(CH2)11BIPY is self-assembled monolayer (SAM) of an alkanethiolate 4-methyl-2,2′-bipyridine (BIPY) head groups, template-stripped gold (AuTS). When SAM exposed to cobalt(II)...

Abstract To obtain soft electronics, it is essential to develop high-performance and mechanically flexible energy storage at the industry level. Herein, we report high-energy-density lithium-sulfur (Li–S) batteries based on all-fibrous sulfur cathodes separators. implement free-standing cathodes, electrically conductive single-walled carbon nanotubes (CNTs) are impregnated with cellulose nanofibers. This fibrous structure forms a 3D porous electrode large surface area improve redox kinetics...

Halide-doped sulfide solid electrolytes have attracted great attention due to their high lithium-ion conductivity, Li-metal compatibility, and deformability for use in all-solid-state Li batteries. Although the effects of halide mixing Li6PS5X Li4PS4X (X = halogen) are fully investigated, studies on origin remarkable increase ionic conductivity by dual doped Li7P2S8X I, Br) scarce. Here, we systematically investigate crystal phase evolution glassy matrix corresponding variation, revealing...

This paper demonstrates that the molecular conformation (in addition to composition and structure) of molecules making up self-assembled monolayers (SAMs) influences rates charge tunneling (CT) through them, in junctions form AuTS/S(CH2)2CONR1R2//Ga2O3/EGaIn, where R1 R2 are alkyl chains different length. The lengths were selected influence conformations conformational homogeneity monolayer. thickness monolayer (i.e. barrier width) their rectification ratios at ±1.0 V. When = H, well ordered...

Abstract All‐solid‐state batteries (ASSBs) comprising solidified cathodes, electrolytes, and Li–metal anodes have attracted notable attention as promising future for electric vehicles owing to their exceptional stability expectation of achieving high energy density. However, its permanent operation has been hindered by Li dendrite growth, chemo–mechanical degradation, interfacial instability, leading exhaustion, increased resistance, internal short‐circuiting. Herein, the first time, authors...

Abstract Li + electrolyte‐gated transistors (EGTs) have received much attention as artificial synapses for neuromorphic computing. EGTs, however, been still challenging to achieve long‐term synaptic plasticity, which should be linearly and symmetrically controlled with the magnitude of electrical potential at gate electrode. Herein, a fluoroalkylsilane (FAS) self‐assembled monolayer (SAM) is introduced channel‐electrolyte interlayer function sequential ion‐trapping in EGTs. It demonstrated...

Nanoporous anodic aluminium oxide (AAO) enables the direct utilization of lithium metal as an ideal anode, owing to a uniform current distribution. The electrochemical performance AAO separator is superior commercial polypropylene, in terms ionic conductivity, discharge capacity, and capacity fading.

In this Letter, we discuss the surface, ionic properties, and scale-up potential of an active transducer that generated electricity from natural water motion. When a liquid contacts solid electrical double layer (EDL) is always formed at solid/liquid interface. By modulating EDL, could generate peak voltage ∼3 V power ∼5 μW. Interestingly, there were specific salinities solution droplets showed maximum performance different characteristics according to ions' nature. Analyzing results...

Development of a tangible solid state battery has received great attention but there are various engineering challenges to overcome, especially for the scalable processing and use Li metal anode. In order tackle these issues, we first evaluated electrochemical stability thio-LISICON electrolytes, i.e., Li10GeP2S12 (LGPS), Li7P3S11 (LPS), Li7P2S8I (LPSI), where glass-ceramic LPSI electrolyte showed superior compatibility with metal. Moreover, superionic conductivity 1.35 × 10−3 S/cm could be...