CALCULATION OF THE OPTIMAL PARAMETERS AND LAYOUT OF ELECTRICITY STORAGE DEVICES AT CONSUMERS AND / OR IN NETWORK INFRASTRUCTURE NODES IN ORDER TO REDUCE THE COST OF PURCHASING ELECTRICITY

Author(s):  
Andrei Borziak ◽  
◽  
Roman Smirnov ◽  

The aim of the work is to develop algorithms for selecting the type of energy storage and its loading profile.

2013 ◽  
Author(s):  
Xudong Fang ◽  
Donggang Yao

Supercapacitors with an electric double-layer design have attracted great attention in the recent years because they are promising energy storage devices for a number of applications, particularly for portable electronics and electric automobiles. They utilize the interface between the electrode and the electrolyte to store energy, resulting in energy storage devices with high power density but low energy density compared to batteries. To improve the performance and reduce the cost, researchers have made significant progress in increasing energy density, electrode voltage, and cycle life. The increase of the energy density is considered to be achieved mainly by increasing the effective specific interface between the electrodes and the electrolyte. Various electrodes with porous structure have been attempted to increase the specific surface area. The increase of electrode voltage is realized primarily via the change of liquid electrolytes to gel, solid and composite ones. In this overview, they are summarized as solid-like electrolytes. This paper reviews the materials adopted and the processing methods developed for solid-like electrolytes, as well as the general characteristics of supercapacitors employing such electrolytes.


Author(s):  
Dmytro Zakharchenko ◽  
◽  
Serhii Stepenko ◽  

Urgency of the research.The study of electricity storage for the operation of power facilities, characteristics and their consideration when choosing the type of storage for the facility will optimize the system as a whole.Target setting.Scientific and technical development and the environmental situation make more stringent requirements for the power system.Actual scientific researches and issues analysis.The classification and main characteristics of existing energy storage devices, their main advantages and disadvantages are considered.Uninvestigated parts of general matters defining. ThereThe main problem with the use of new types of electricity storage is the lack of their widespread use in the market of electricity facilities.The research objective.The aim of the work is to develop a methodology for determining the optimal type and model of universal electricity storage and analysis of its advantages and disadvantages.The statement of basic materials. The analysis of existing types of electric energy storage devices and their characteristics is carried out. Methods are proposed that are based on a comparison of unit cost, volume capacity, environmental impact and service life. The main differences of each type of electricity storage, their advantages and disadvantages are analyzed.Conclusions.The proposed method is based on a comparison of unit cost, volume capacity, environmental impact and service life. The main differences of each type of electricity storage, their advantages and disadvantages are analyzed. Using the proposed technique, the optimal choice of electricity storage for power facilities is made.


2018 ◽  
Vol 180 ◽  
pp. 04001 ◽  
Author(s):  
Petru Valentin Radu ◽  
Zbigniew Drazek

The proposed paper presents the possibility of using the wayside energy storage devices (WESD) for the DC Heavy Rail Transport treating the design, costs and payback time. Moreover a case study comparison for the use of wayside energy storage devices on the heavy transport at the supply voltage of 3.3kV DC is presented. A method of sizing the energy storage devices using vehicle characteristics, traction power supply and running timetable is presented. The paper also presents the cost analysis for the most commonly used energy storage devices and the payback time.


2020 ◽  
Vol 13 (10) ◽  
pp. 3527-3535 ◽  
Author(s):  
Nana Chang ◽  
Tianyu Li ◽  
Rui Li ◽  
Shengnan Wang ◽  
Yanbin Yin ◽  
...  

A frigostable aqueous hybrid electrolyte enabled by the solvation interaction of Zn2+–EG is proposed for low-temperature zinc-based energy storage devices.


2020 ◽  
Author(s):  
Yamin Zhang ◽  
Zhongpu Wang ◽  
Deping Li ◽  
Qing Sun ◽  
Kangrong Lai ◽  
...  

<p></p><p>Porous carbon has attracted extensive attentions as the electrode material for various energy storage devices considering its advantages like high theoretical capacitance/capacity, high conductivity, low cost and earth abundant inherence. However, there still exists some disadvantages limiting its further applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structure deformation at harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate firstly reported as the carbon source, to fabricate ultrathin porous carbon nanosheets. <a>The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (430.7 mAh g<sup>-1</sup>), superior rate capability (154.8 mAh g<sup>-1</sup> at an ultrahigh current density of 5.0 A g<sup>-1</sup>) and ultra-stable long-term cycling stability (a high capacity retention ratio of ~81.2% after 4000 cycles at 1.0 A g<sup>-1</sup>). </a>Similarly, when being applied in Zn-ion capacitors, the Ca-900 electrode also exhibits an ultra-stable cycling performance with ~90.9% capacity retention after 4000 cycles at 1.0 A g<sup>-1</sup>, illuminating the applicable potentials. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanism investigations, this work will deepen the fundamental understandings and boost the commercialization of high-efficient energy storage devices like potassium-ion/sodium-ion batteries, zinc-ion batteries/capacitors and aluminum-ion batteries.</p><br><p></p>


Author(s):  
José Juan González Márquez ◽  
Margarita González Brambila

This chapter analyses the role of electricity storage as an innovative strategy to attain the Mexican Government’s goals regarding carbon dioxide emission reduction and energy transition. The survey includes the analysis of the different electricity storage technologies as well as the legal framework governing electricity storage as the fifth link of the energy supply chain from a comparative perspective. The authors discuss whether energy storage is a generation or a distribution/transmission asset. The chapter also analyses Mexico’s experiences in energy storage and briefly describes the way it is regulated in other jurisdictions. Finally, the authors propose the regulation of energy storage as a separate licensed activity.


Author(s):  
Dhanasekar Kesavan ◽  
Vimal Kumar Mariappan ◽  
Karthikeyan Krishnamoorthy ◽  
Sang-Jae Kim

In this study, we report a facile carbothermal method for the preparation of boron-oxy-carbide (BOC) nanostructures and explore their properties towards electrochemical energy storage devices.


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