A review of rechargeable aprotic lithium-oxygen batteries based on theoretical and computational investigations

2021 ◽  
Author(s):  
Shengqi Ding ◽  
Xuebin Yu ◽  
Zi-Feng Ma ◽  
Xianxia Yuan
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Energy Storage And Conversion ◽  
Discharge Product ◽  
Lithium Oxygen Batteries

Rechargeable lithium-oxygen (Li-O2) batteries with ultrahigh theoretical energy density have attracted great attention as energy storage and conversion devices. However, due to the insoluble-insulating nature of the discharge product (Li2O2)...

Integration of Single Co Atoms and Ru Nanoclusters Boosts the Cathodic Performance of Nitrogen-Doped 3D Graphene towards Lithium–Oxygen Batteries

2021 ◽  
Author(s):  
Mingrui Liu ◽  
Jing Li ◽  
Bing Chi ◽  
Long Zheng ◽  
Yuexing Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Next Generation ◽  
Energy Storage Devices ◽  
3D Graphene ◽  
Storage Devices ◽  
Nitrogen Doped ◽  
Automotive Batteries ◽  
Lithium Oxygen Batteries

The Li-O2 battery is recognized as one of the most promising energy storage devices for next-generation automotive batteries due to its extremely high theoretical energy density. The design and preparation...

Phthalocyanines in batteries and supercapacitors

2012 ◽  
Vol 16 (07n08) ◽  
pp. 754-760 ◽  
Author(s):  
Joshua Oni ◽  
Kenneth I. Ozoemena
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Metal Oxide ◽  
Lower Cost ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Review Article ◽  
Energy Storage And Conversion ◽  
Metal Oxide Catalysts ◽  
New Energy

Numerous are the ways through which phthalocyanines have been put into very good use. The on-going search for new energy storage and conversion systems has made phthalocyanines even prettier as alternatives to metal and metal oxide catalysts because of their lower cost. This review article looks through a very narrow window of the applications of phthalocyanines in batteries and supercapacitors as a means of improving the qualities such as cycle property, energy density, capacity, open circuit voltage, etc, of these devices.

Enhanced Energy Storage in Nanocomposites Through Aligned PZT Nanowires

2011 ◽  
Author(s):  
Haixiong Tang ◽  
Henry A. Sodano ◽  
Yirong Lin
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dielectric Permittivity ◽  
Aspect Ratio ◽  
Electric Field ◽  
Applied Electric Field ◽  
Energy Storage And Conversion ◽  
Electromechanical Properties ◽  
Capacitive Energy Storage ◽  
Wide Range

Nanocomposites consisting of a piezoceramic inclusion and polymer matrix offer a combination of electromechanical coupling with high toughness and ductility inherent to polymers. There is a wide range of applications for these types of materials due to their intrinsic piezoelectric and dielectric properties, such as vibration sensing, actuation, energy harvesting and capacitive energy storage. However, the relatively low piezoelectric strain coefficient and dielectric permittivity of these nanocomposites significantly limit their application in energy conversion and energy storage applications. There are mainly two coupled to improve the dielectric permittivity and electromechanical properties of piezoceramic nanocomposites, namely higher aspect ratio active inclusions and alignment of inclusions in the direction of the applied electric field. Previously, we have demonstrated that using higher aspect ratio lead zirconate titanate (PZT) nanowires (NWs) could significantly enhance the energy density and d33 coupling as compared to the samples with lower aspect ratio PZT nanorods [11]. In this paper, we will show that orientation of PZT NWs also influences energy storage capability of nanocomposite. Nanocomposites with aligned PZT NWs in the direction of the applied electric field show increased dielectric permittivity and energy density as compared to those with randomly dispersed inclusions. PZT NWs are hydrothermally synthesized, dispersed into a polyvinylidene fluoride (PVDF), cast into a film and then aligned through uniaxial stretching. Scanning electric microscopy (SEM) shows the PZT NWs are successfully aligned in direction of stretching. This work demonstrates that the energy storage and conversion capability of the nanocomposite can be significantly enhanced through the alignment of PZT NWs in the direction of the applied electric field. The findings of this research could lead to broad interest due to demonstration of developing piezoceramic nanocomposites with enhanced dielectric and electromechanical properties for next generation energy storage and conversion devices.

Liquid phase exfoliation of bismuth nanosheets for flexible all-solid-state supercapacitors with high energy density

2020 ◽  
Vol 8 (35) ◽  
pp. 12314-12322
Author(s):  
Bingchao Yang ◽  
Xiangjun Li ◽  
Yong Cheng ◽  
Shuai Duan ◽  
Bo Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Liquid Phase ◽  
Energy Density ◽  
High Energy ◽  
Research Interest ◽  
High Energy Density ◽  
Energy Storage And Conversion ◽  
Two Dimensional ◽  
Liquid Phase Exfoliation

Two-dimensional (2D) layered bismuth (Bi) with a thickness-dependent direct bandgap (0–0.55 eV) has attracted ever-increasing research interest in electronics, energy storage and conversion devices.

scholarly journals Tunable Nanodielectric Composites

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Daniel Qi Tan ◽  
Yang Cao ◽  
Xiaomei Fang ◽  
Patricia C. Irwin
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Energy Density ◽  
High Voltage ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage And Conversion ◽  
Interface Engineering ◽  
Tunable Device ◽  
High Level

This paper presents a progress update with the development of nanodielectric composites with electric field tunability for various high energy, high power electrical applications. It is demonstrated that nonlinear electrical/dielectric properties can be achieved via the nanostructure and interface engineering. A high level summary was given on the progress achieved as well as challenges remaining in nanodielectric engineering towards high energy density capacitors for energy storage and conversion, nonlinear dielectrics for tunable device, and high voltage varistor for surge suppression.

Materials for Advanced Flywheel Energy-Storage Devices

MRS Bulletin ◽  
1999 ◽  
Vol 24 (11) ◽  
pp. 51-56 ◽  
Author(s):  
S.J. DeTeresa
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Fiber Composite ◽  
Electrical Energy ◽  
Fiber Composites ◽  
Energy Storage And Conversion ◽  
Energy Storage Devices ◽  
Specific Strength ◽  
Aerospace Applications ◽  
Mechanical Devices

Flywheels are mechanical devices that store kinetic energy in a rotating mass. A simple example is the potter's wheel. For energy storage and conversion, an efficient method to exchange energy with a flywheel device is by converting the energy between mechanical and electrical forms. Typically a flywheel designed to perform this type of energy exchange is a combination of a motor and a generator. Energy is transferred into the device for storage by using it as a motor to consume electrical energy and spin the mass. This energy can be recovered with an efficiency exceeding 80% by using the flywheel as an electrical generator. Although the concept of storing energy in a rotating mass is an ancient idea, the relatively recent advent of advanced fiber-composite materials offers the potential for improved energy storage and conversion using rotating electromechanical devices.The achievable energy density (energy/weight) of a simple flywheel design, such as that shown schematically in Figure 1, is proportional to the specific strength (strength/density) of the material. The particular type of composite flywheel shown in this figure is composed entirely of circumferentially wrapped fiber. Although other designs have been suggested and constructed, this version is the most common for energy-storage applications. As discussed in the earliest papers on the subject, such as the article by Post and Post, the proportionality between energy density and specific strength favors the use of fiber composites. The remarkable combination of mechanical properties and low density achieved with fiber composites has made them attractive and nearly essential for aerospace applications.

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