Hybridization and energy storage high efficiency and low cost

2020 ◽  
Author(s):  
Khalil Saadaoui ◽  
Kaoutar Senhaji Rhazi ◽  
Abderraouf Aboudou
Keyword(s):  
Energy Storage ◽  
High Efficiency ◽  
Low Cost

Storage of hydrogen and lithium in inorganic nanotubes and nanowires

2006 ◽  
Vol 21 (11) ◽  
pp. 2744-2757 ◽  
Author(s):  
Fangyi Cheng ◽  
Jun Chen
Keyword(s):  
Energy Storage ◽  
High Efficiency ◽  
Low Cost ◽  
High Surface ◽  
Rechargeable Batteries ◽  
Energy Storage And Conversion ◽  
Electrochemical Characteristics ◽  
Environmental Benefit ◽  
Lithium Storage ◽  
Inorganic Nanotubes

The search for cleaner and more efficient energy storage and conversion technologies has become an urgent task due to increasing environmental issues and limited energy resources. The aim of energy storage and conversion is to obtain energy with environmental benefit, high efficiency, and low cost (namely, maximum atomic and recycling economy). Progress has been made in the fields of hydrogen storage and rechargeable batteries. The emerging nanotechnology offers great opportunities to improve the performance of existing energy storage systems. Applying nanoscale materials to energy storage offers a higher capacity compared to the bulk counterparts due to the unique properties of nanomaterials such as high surface areas, large surface-to-volume atom ratio, and size-confinement effect. In particular, one- dimensional (1D) inorganic nanostructures like tubes and wires exhibit superior electrochemical characteristics because of the combined advantages of small size and 1D morphology. Hydrogen and lithium can be stored in different 1D nanostructures in various ways, including physical and/or chemical sorption, intercalation, and electrochemical reactions. This review highlights some of the latest progress with the studies of hydrogen and lithium storage in inorganic nanotubes and nanowires such as MoS2, WS2, TiS2, BN, TiO2, MnO2, V2O5, Fe2O3, Co3O4, NiO, and SnO2.

Forming Gradient Multilayer (GML) Nano Films for Photovoltaic and Energy Storage Applications

2011 ◽  
Vol 1323 ◽  
Author(s):  
Boris Gilman ◽  
Igor Altman
Keyword(s):  
Energy Storage ◽  
High Efficiency ◽  
Low Cost ◽  
Deposition Process ◽  
Material Composition ◽  
Successful Implementation ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Entire Thickness ◽  
Fast Development

ABSTRACTFor successful implementation of the nanomaterial-based PV and Energy storage devices there is a need for well-structured nano films consisting of a strictly controlled sequence of nanoparticle layers. Most promising nano-films include a “built-in” gradient of a nanoparticle size and/or material composition across the part or entire thickness of the film. Such Gradient Multilayer (GML) nano films will be able to significantly improve a PV efficiency of the 3rd generation Solar Cells and Energy storage devices. The development of GML-based devices is presently limited by lack of simple, inexpensive, scalable, and production-worthy deposition methods that are capable of forming GML nano-film on PV-suitable substrates such as flexible materials.The proposed concept describes novel principles of an advanced non-conventional deposition of the highly efficient GML nano films.The proposed GML deposition method is based on the phenomena of Flying Particles (FP). According to the FP-methods a pre-selected mix of nanoparticles (NP) of various size and/or material composition is deposited on a flexible (or other) substrate in a pre-defined order of NP size and/or composition thus forming GML nano film. Deposited GML film comprises a sequence of size-tuned and/or composition-tuned NP layers, which has a potential for significant increase of PV efficiency.The deposition process includes the NPs launch and flight through a resistant gas ambient. Due to the Stokes aerodynamic laws the FP times-to-target will be different for NP of a different size and/or density (material composition). Simulation is presented to confirm the separation of FP”s of a different size and/or density during their motion through the low-pressure gas. The calculations have been made for the initial stages of the FP process thus establishing the most efficient parameters of the process. Resultant GML nano films are expected to have superior qualities, particularly for building high efficiency / low cost PV panels. The FP-method allows for a fast development and easy implementation in PV manufacturing.

scholarly journals Performance Index: A Simple Selection Method of Appropriate Energy Storage for Specific Application

2018 ◽  
Vol 171 ◽  
pp. 01002
Author(s):  
Hussein Ibrahim ◽  
Mazen Ghandour ◽  
Sabine Saad
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Performance Index ◽  
High Efficiency ◽  
Low Cost ◽  
Storage Devices ◽  
Renewable Power ◽  
Storage Methods ◽  
Simple Selection ◽  
Term Storage

The efficiency and cost of renewable power systems using intermittent resources could significantly be improved by developing low cost, high efficiency and more sustainable energy storage systems. There are various types of storage methods, some of which are already in use, while others are still in development. A comparison study between energy storage options is presented in this paper. We have taken a look at the main characteristics of the different electricity storage techniques and their field of application (permanent or portable, long-or short-term storage, maximum power required, etc.). These characteristics will serve to make comparisons in order to determine the most appropriate technique for each type of application. Based the results obtained in this study, a “performance index” have been determined for each storage technology in order to facilitate the comparison between the different storage devices.

Redox Flow Batteries for Energy Storage: A Technology Review

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Ruijie Ye ◽  
Dirk Henkensmeier ◽  
Sang Jun Yoon ◽  
Zhifeng Huang ◽  
Dong Kyu Kim ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
High Efficiency ◽  
Storage Systems ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Active Species ◽  
Energy Storage Systems ◽  
Redox Flow Batteries ◽  
Flow Batteries

The utilization of intermittent renewable energy sources needs low-cost, reliable energy storage systems in the future. Among various electrochemical energy storage systems, redox flow batteries (RFBs) are promising with merits of independent energy storage and power generation capability, localization flexibility, high efficiency, low scaling-up cost, and excellent long charge/discharge cycle life. RFBs typically use metal ions as reacting species. The most exploited types are all-vanadium RFBs (VRFBs). Here, we discuss the core components for the VRFBs, including the development and application of different types of membranes, electrode materials, and stack system. In addition, we introduce the recent progress in the discovery of novel electrolytes, such as redox-active organic compounds, polymers, and organic/inorganic suspensions. Versatile structures, tunable properties, and abundant resources of organic-based electrolytes make them suitable for cost-effective stationary applications. With the active species in solid form, suspension electrolytes are expected to provide enhanced volumetric energy densities.

scholarly journals Low cost, high efficiency flexible supercapacitor electrodes made from areca nut husk nanocellulose and silver nanoparticle embedded polyaniline

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29564-29575
Author(s):  
Soorya Sasi ◽  
C. Ardra Krishna ◽  
Sunish K. Sugunan ◽  
Akash Chandran ◽  
P. Radhakrishnan Nair ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Efficiency ◽  
Low Cost ◽  
Waste Materials ◽  
Areca Nut ◽  
Modern Life ◽  
The Sustainable Development ◽  
Energy Field ◽  
Flexible Supercapacitor ◽  
Energy Storage Applications

Energy storage is a key aspect in the smooth functioning of the numerous gadgets that aid easy maneuvering through modern life. Utilization of waste materials for energy storage applications enables the sustainable development of energy field.

scholarly journals High Efficiency and Low Cost Thermal Energy Storage System

2017 ◽  
Author(s):  
James J. Sienicki ◽  
Qiuping Lv ◽  
Anton Moisseytsev ◽  
Matthew Bucknor
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
High Efficiency ◽  
Low Cost ◽  
Storage System ◽  
Energy Storage System ◽  
Thermal Energy Storage System

Sulfate Assisted Synthesis of α-type Nickel Hydroxide Nanowires with 3D Reticulation for Energy Storage in Hybrid Supercapacitors

2021 ◽  
Author(s):  
Wei Li ◽  
Huang Zhongzheng ◽  
Jia Yaduo ◽  
Cui Yunlong ◽  
SHI Peng ◽  
...  
Keyword(s):  
Energy Storage ◽  
Chemical Stability ◽  
Nickel Hydroxide ◽  
High Efficiency ◽  
Low Cost ◽  
Electroactive Material ◽  
Hybrid Supercapacitors ◽  
High Theoretical Capacity ◽  
Type Nickel ◽  
Thermal And Chemical Stability

Nickel hydroxide, as a high high-efficiency electroactive material, is a promising electroactive material for advanced hybrid supercapacitors due to its high theoretical capacity, low-cost, good thermal and chemical stability. Although...

Influence of MBE Growth Conditions on Dislocation Densities of GaAs/Ge Epilayers Grown on Silicon Substrates

1985 ◽  
Vol 43 ◽  
pp. 364-365
Author(s):  
K.M. Hones ◽  
P. Sheldon ◽  
B.G. Yacobi ◽  
A. Mason
Keyword(s):  
High Efficiency ◽  
Lattice Mismatch ◽  
Low Cost ◽  
Growth Conditions ◽  
Nonradiative Recombination ◽  
Device Structure ◽  
Si Substrates ◽  
Transmission Electron ◽  
Dislocation Densities ◽  
Dislocation Type

There is increasing interest in growing epitaxial GaAs on Si substrates. Such a device structure would allow low-cost substrates to be used for high-efficiency cascade- junction solar cells. However, high-defect densities may result from the large lattice mismatch (∼4%) between the GaAs epilayer and the silicon substrate. These defects can act as nonradiative recombination centers that can degrade the optical and electrical properties of the epitaxially grown GaAs. For this reason, it is important to optimize epilayer growth conditions in order to minimize resulting dislocation densities. The purpose of this paper is to provide an indication of the quality of the epitaxially grown GaAs layers by using transmission electron microscopy (TEM) to examine dislocation type and density as a function of various growth conditions. In this study an intermediate Ge layer was used to avoid nucleation difficulties observed for GaAs growth directly on Si substrates. GaAs/Ge epilayers were grown by molecular beam epitaxy (MBE) on Si substrates in a manner similar to that described previously.

Improvement of Ti/RuO2–IrO2 Anode Lifetime and Electrocatalytical Properties by Using an Eco-Friendly Thermal Decomposition Method Using Polyvinyl Alcohol as Solvent

2019 ◽  
Author(s):  
Charlys Bezerra ◽  
Géssica Santos ◽  
Marilia Pupo ◽  
Maria Gomes ◽  
Ronaldo Silva ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Polyvinyl Alcohol ◽  
High Efficiency ◽  
Electrochemical Impedance ◽  
Pechini Method ◽  
Low Cost ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
Calcination Temperatures ◽  
Service Lifetime

<p>Electrochemical oxidation processes are promising solutions for wastewater treatment due to their high efficiency, easy control and versatility. Mixed metal oxides (MMO) anodes are particularly attractive due to their low cost and specific catalytic properties. Here, we propose an innovative thermal decomposition methodology using <a>polyvinyl alcohol (PVA)</a> as a solvent to prepare Ti/RuO<sub>2</sub>–IrO<sub>2</sub> anodes. Comparative anodes were prepared by conventional method employing a polymeric precursor solvent (Pechini method). The calcination temperatures studied were 300, 400 and 500 °C. The physical characterisation of all materials was performed by X-ray diffraction and scanning electron microscopy coupled with energy dispersive spectroscopy, while electrochemical characterisation was done by cyclic voltammetry, accelerated service lifetime and electrochemical impedance spectroscopy. Both RuO<sub>2</sub> and IrO<sub>2</sub> have rutile-type structures for all anodes. Rougher and more compact surfaces are formed for the anodes prepared using PVA. Amongst temperatures studied, 300 °C using PVA as solvent is the most suitable one to produce anodes with expressive increase in voltammetric charge (250%) and accelerated service lifetime (4.3 times longer) besides reducing charge-transfer resistance (8 times lower). Moreover, the electrocatalytic activity of the anodes synthesised with PVA toward the Reactive Blue 21 dye removal in chloride medium (100 % in 30 min) is higher than that prepared by Pechini method (60 min). Additionally, the removal total organic carbon point out improved mineralisation potential of PVA anodes. Finally, this study reports a novel methodology using PVA as solvent to synthesise Ti/RuO<sub>2</sub>–IrO<sub>2</sub> anodes with improved properties that can be further extended to synthesise other MMO compositions.</p>

Sign in / Sign up

Export Citation Format

Share Document