All-solid-state batteries (ASSBs) based on inorganic solid electrolytes promise improved safety, higher energy density, longer cycle life, and lower cost than conventional Li-ion batteries. However, their practical application is hampered by the high resistance arising at solid-solid electrode-electrolyte interface. Although exact mechanism of this interface has not been fully understood, various chemical, electrochemical, chemo-mechanical processes govern charge transfer phenomenon This...

Cancer and the associated secondary bacterial infections is a leading cause of mortality, due to paucity effective drugs. Here, we have synthesized silver nanoparticles (AgNPs) from organic resource confirmed their anti-cancer anti-microbial potentials. Microwave irradiation method was employed synthesize AgNPs using Pandanus odorifer leaf extract. Anti-cancer potential evaluated by scratch assay on monolayer rat basophilic leukemia (RBL) cells, indicating that inhibit migration RBL cells....

Abstract Li‐garnets are promising inorganic ceramic solid electrolytes for lithium metal batteries, showing good electrochemical stability with Li anode. However, their brittle and stiff nature restricts intimate contact both the electrodes, hence presenting high interfacial resistance to ionic mobility. To address this issue, a strategy employing liquid electrolyte (ILE) thin interlayers at electrodes/electrolyte interfaces is adopted, which helps overcome barrier ion transport. The...

A novel design for an anodic WO3 mesosponge @ carbon has been introduced as a highly stable and long cyclic life Li-ion battery electrode. The nanocomposite was successfully synthesized via single-step electrochemical anodization subsequent heat treatment in acetylene argon gas environment. Morphological compositional characterization of the resultant materials revealed that composite consisted three-dimensional interconnected network layers conformally coated with 5 nm thick layer grown...

Abstract While all‐solid‐state Li metal batteries based on ceramic solid‐electrolytes offer higher energy density and better safety features over their liquid counterparts, critical challenges in design such as high electrode–electrolyte interface resistance formation of Li‐dendrites still remain unsolved. To address the issues, an intimate contact between solid‐state electrolyte is necessary. Herein, a flexible mechanically robust polymer membrane comprising poly(ethylene oxide), lithium...

Formation of nano-sized interphase layers, containing organic and inorganic species, in an interface modified Li–sulfur solid-state battery.

Li2VO2F with the cation-disordered rock-salt structure is an attractive high-energy-density positive electrode material but suffers from severe capacity fading upon cycling. The underlying reasons are yet unclear. In this study, we unveil overlooked role of vanadium dissolution and electrode–electrolyte interactions provide insight into failure mechanism. Interfacial reactions, in general, can be tuned by either surface coatings or modification electrolyte chemistry. Here modify interfacial...

Disordered rock-salt compounds are becoming increasingly important due to their potential as high-capacity positive electrode materials for lithium-ion batteries. Thereby, a significant number of studies have focused on increasing the accessible Li capacity, but manipulate electrochemical limited. This work explores effect transition-metal substitution electrochemistry ternary disordered rock-salt-type with LiM2+0.5V0.54+O2 stoichiometry (M = Mn, Fe, Co) directly synthesized through...

A rapid microwave hydrothermal process is adopted for the synthesis of titanium dioxide and reduced graphene oxide nanocomposites as high-performance anode materials Li-ion batteries. With assistance hydrazine hydrate a reducing agent, was while TiO2 nanoparticles were grown in situ on nanosheets to obtain nanocomposite material. The morphology obtained consisted particles with size ∼100 nm, uniformly distributed nanosheets. as-prepared TiO2-graphene able deliver capacity 250 mA h g-1 ± 5%...

This work is a comparative study of the electrochemical performance crystalline and amorphous anodic iron oxide nanotube layers. These layers were grown directly on top an current collector with vertical orientation via simple one-step synthesis. The structures obtained by heat treating as-prepared (amorphous) in ambient air environment. A detailed morphological compositional characterization resultant materials was performed transmission electron microscopy (TEM), field-emission scanning...

In this study, electromechanical characteristics of (1-x) Bi0.5Na0.5TiO3-xSrTiO3 (ST26, x = 0.26)/(1-y) Bi0.5Na0.5TiO3-ySrTiO3 (ST10, y 0.1) (matrix/seed) composites were studied. The ST26 (high relaxor phase) and ST10 (a ferroelectric (RF), high composite with large (r-ST26-ST10) small (t-ST26-ST10) grains exhibited frequency-related dielectric properties strain response at a low triggering electric field (an incipient piezoelectricity). It is ascribed to matrix-seed effect originating from...

In this report, the piezoelectric, dielectric and ferroelectric characteristics of 0.76Bi_0.5Na_0.5TiO₃(BNT)–0.24SrTiO₃(ST) with niobium (Nb) (Nb-added BNT–24ST) ceramics synthesized by using a solid-state reaction are described.

Lithium-excess disordered rock-salt oxides have opened up a new vista in search of high-capacity cathodes, resulting variety materials with versatile elemental compositions. This work introduces W6+ as possible charge compensator and explores the solid-solution series Li1+x/100Ni1/2–x/120Ti1/2–x/120Wx/150O2 (x = 0, 5, 10, 15, 20), which has been rationally developed based on concepts from percolation theory. Consistent this understanding, specific capacities increase stoichiometric toward...

Development of lithium-ion batteries with composite solid polymer electrolytes (CPSEs) has attracted attention due to their higher energy density and improved safety compared systems utilizing liquid electrolytes. While it is well known that the microstructure CPSEs affects ionic conductivity, thermal stability, mechanical integrity/long-term bridge between microscopic macroscopic scales still unclear. Herein, we present a systematic investigation distribution TEMPO-oxidized cellulose...

A comprehensive electrochemical study of crystalline iron oxide nanotube arrays grown in a highly ordered form with high aspect ratio is presented. Nanotube arrays, thickness ∼5 µm and tube diameter ∼100 nm, were synthesized through an optimized two-step anodization technique. The morphology the chemical composition resulting materials characterized by field-emission scanning electron microscopy, X-ray diffraction, Rietveld analysis Raman spectroscopy. response was evaluated cyclic...

In this work, a simple and cost-effective electrochemical anodization technique was adopted to rapidly grow TiO2 nanotube arrays on Ti current collector utilize the synthesized materials as potential electrodes for supercapacitors. To accelerate growth of arrays, lactic acid used an electrolyte additive. The as-prepared with high aspect ratio were strongly adhered substrate. X-ray diffraction (XRD) transmission electron microscopy (TEM) results confirmed that crystallized in anatase phase....

Solid-state batteries based on composite polymer electrolytes (CPEs) have shown enormous potential for safe and high-energy-storage systems. The current work is focused the study of a CPE cross-linked poly(ethylene glycol) (PEG) Li7La3Zr2O12 (LLZO) inorganic solid electrolyte. Nano- micrometer-sized particles LLZO were embedded in that was synthesized via solvent-free ring-opening polymerization technique. CPEs with nanosized superior to pure or containing microsized particles. Different...