Research activities related to the development of negative electrodes for construction high‐performance Li‐ion batteries (LIBs) with conventional cathodes such as LiCoO 2 , LiFePO 4 and LiMn O are described. The anode materials classified in three main categories, insertion, conversion, alloying type, based on their reactivity Li. Although numerous have been proposed (i.e., half‐cell assembly), few them reached commercial applications, apart from graphite, Li Ti 5 12 Si, Sn‐Co‐C. This...

Over the past three decades, intensive research activities have focused on development of electrochemical energy storage devices, particularly exploiting concept flow batteries. Amongst these, vanadium redox batteries (VRFB) are an attractive option, which been studied extensively and now being commercialized around world. The performance VRFB system is governed by several critical components namely electrolyte, electrode, ion‐exchange membrane field design. Here, focus mainly recent...

Development of an eco-friendly, low cost and high energy density (∼700 W h kg−1) LiMnPO4 cathode material became attractive due to its operating voltage ∼4.1 V vs. Li falling within the electrochemical stability window conventional electrolyte solutions offers more safety features presence a strong P–O covalent bond. The vacancy formation for was 0.19 eV higher than that LiFePO4, resulting in 10−3 times-diluted complex concentration, which represents main difference between kinetics initial...

This paper presents an overview of the various types lithium salts used to conduct Li(+) ions in electrolyte solutions for rechargeable batteries. More emphasis is paid towards and their ionic conductivity conventional solutions, solid-electrolyte interface (SEI) formation carbonaceous anodes effect anions on aluminium current collector. The physicochemical functional parameters relevant electrochemical properties, that is, stabilities, are also presented. new salts, such as...

We report non-templated synthesis of interconnected microporous carbon (IMPC) sheets having beehive morphology by direct pyrolysis poly(acrylamide-co-acrylic acid) potassium salt in inert atmosphere without any activation. The presence the alkali metal selected polymer precursor results a high specific surface area 1327 m2 g−1. Importantly, 80% pore volume is contributed micropores with size ranging from 1–2 nm which ideal for use as an electrode supercapacitors. Whereas rest was small...

Abstract Technology for producing highly pure hydrogen (99.999%) by water electrolysis is a field of importance in terms the planets' current energy scenario. A much needed transition from carbon economy to further adds generation sustainable future. To avoid losses production process, use acidic (Proton Exchange Membrane (PEM) electrolyzer) and alkaline (alkaline electrolytes conventional practice this field. Unfortunately, there are several other issues associated with such as requirement...

Abstract Highly flexible supercapacitors (SCs) have great potential in modern electronics such as wearable and portable devices. However, ultralow specific capacity low operating window limit their practical applications. Herein, a new strategy for the fabrication of free‐standing NiMoS NiFeS nanosheets (NSs) high‐performance asymmetric SC (ASC) through hydrothermal subsequent sulfurization technique is reported. The effect Ni 2+ optimized to attain hierarchical NS architectures with...

The Pechini type polymerizable complex decomposition method is employed to prepare LiTi2(PO4)3 at 1000 °C in air. High energy ball milling followed by carbon coating the glucose-method yielded C-coated nano-LiTi2(PO4)3 (LTP) with a crystallite size of 80(±5) nm. phase characterized X-ray diffraction, Rietveld refinement, thermogravimetry, SEM, HR-TEM and Raman spectra. Lithium cycling properties LTP show that 1.75 moles Li (∼121 mA h g−1 15 current) per formula unit can be reversibly cycled...

Abstract To meet a fast‐emerging demand, flexible energy storage applications have great interest in the development of highly hierarchical nanoarchitectures. Metal nitrides recently been paid significant as promising electrode material for supercapacitors (SCs) owing to their high electrical conductivity, excellent redox properties, and outstanding mechanical strength. However, poor electrochemical stability seriously limits commercialization possibilities. Herein, novel strategy is...

Abstract Where sustainability is concerned, recycling of reutilizable wastes will always occupy the apex green chemistry research. Handling electronic in a manner without affecting ecology and human health one main challenges for material chemists gains top priority among other fields At present, handling spent lithium‐ion batteries (LIBs) key priority. Due to these environmental concerns, massive interest has been triggered various crystal structures metal oxides, different kinds carbon...

Abstract In this manuscript, a dramatic increase in the energy density of ~ 69 Wh kg −1 and an extraordinary cycleability 2000 cycles Li-ion hybrid electrochemical capacitors (Li-HEC) is achieved by employing tailored activated carbon (AC) 60% mesoporosity derived from coconut shells (CS). The AC obtained both physical chemical hydrothermal carbonization activation process compared to commercial powders (CAC) terms supercapacitance performance single electrode configuration vs. Li. Li-HEC...

Spent lithium-ion batteries (LIBs) are a key source for securing tons of raw materials that valuable LIB applications. However, the massive emerging volume spent LIBs urgently needs new management strategy to recycle/reuse all components LIBs, particularly graphite before it becomes "future critical material" like Li and Co. Many elements in electrodes can now be recycled, however has till now, been largely overlooked. Some research groups have begun examining possible strategies reuse...

A simple and efficient sol–gel/electrospinning technique is employed for the preparation of high aspect ratio CuO nanofibers. Characterizations studies including X-ray diffraction, scanning electron microscopy, High-resolution-transmission microscopy are to analyze crystal structure, morphology electrospun Electrochemical lithium storage properties evaluated in half-cell configurations at room temperature between 0.005 3 V vs Li. Cyclic voltammetry used study reaction mechanism during...

Because of the demand for sustainable energy storage devices, investigating high density and cost-effective electrodes flexible supercapacitors (SCs) is essential; however, emergence such high-performance to fulfill requirements industrial sectors remains a highly challenging task. Herein, we successfully demonstrated preparation ternary metal selenides nickel–vanadium selenide (NixV3–xSe4) nickel–iron (NixFe3–xSe4) series by simple low-cost hydrothermal method, followed selenization...

This review exclusively elaborates the unnoticed vision into design, fabrication, mechanism, and investigation of fascinating Ni(OH)₂-based supercapacitors in an asymmetric fashion.

We report the synthesis and electrochemical performance of one-dimensional TiO2–graphene composite nanofibers (TiO2–G nanofibers) by a simple electrospinning technique for first time. Structural morphological properties were characterized various techniques, such as X-ray diffraction, scanning electron microscopy (SEM), transmission (TEM), Raman spectroscopy, BET surface area analysis. Lithium insertion evaluated both galvanostatic potentiostatic modes in half-cell configurations. Cyclic...

We report the synthesis and electrochemical performance of sub-micron size LiCrTiO4 particles prepared by a solid-state approach. X-ray diffraction transmission electron microscopic studies are used to analyze structural morphological properties, respectively, synthesized powders. Electrochemical Li-insertion properties evaluated in half-cell configurations (Li/LiCrTiO4) means both galvanostatic potentiostatic modes between 1 2.5 V vs. Li. Reversible insertion almost one mole lithium (∼155...

Lithium ion hybrid capacitors (Li-HECs) have attracted significant attention for use in next generation advanced energy storage technologies to satisfy the demand of both high power density as well density. Herein we demonstrate very surface area 3D carbon cuboids synthesized from a metal–organic framework (MOF) cathode material with Li4Ti5O12 anode performance Li-HECs. The cell is ∼65 W h kg−1 which significantly higher than that achievable commercially available activated (∼36 kg−1) and...