Exploring non-linearities of carbon-based microsupercapacitors from an equivalent circuit perspective

2018 ◽  
Vol 6 (16) ◽  
pp. 7162-7167 ◽  
Author(s):  
Danupol Boonpakdee ◽  
Cristian F. Guajardo Yévenes ◽  
Werasak Surareungchai ◽  
Chan La-o-vorakiat
Keyword(s):  
Energy Storage ◽  
Equivalent Circuit ◽  
Circuit Analysis ◽  
Energy Storage Devices ◽  
Equivalent Circuit Analysis ◽  
Storage Devices ◽  
Non Linear ◽  
Carbon Based

Besides accurate capacitance determination, an equivalent-circuit analysis reveals the ion configurations of microsupercapacitors that lead to non-linear electronic behaviors of these miniature energy-storage devices.

scholarly journals Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 505 ◽  
Author(s):  
Samarjeet Singh Siwal ◽  
Qibo Zhang ◽  
Nishu Devi ◽  
Vijay Kumar Thakur
Keyword(s):  
Energy Storage ◽  
Surface Area ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Electrode Materials ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Carbon Based ◽  
Electrochemical Energy

In recent years, numerous discoveries and investigations have been remarked for the development of carbon-based polymer nanocomposites. Carbon-based materials and their composites hold encouraging employment in a broad array of fields, for example, energy storage devices, fuel cells, membranes sensors, actuators, and electromagnetic shielding. Carbon and its derivatives exhibit some remarkable features such as high conductivity, high surface area, excellent chemical endurance, and good mechanical durability. On the other hand, characteristics such as docility, lower price, and high environmental resistance are some of the unique properties of conducting polymers (CPs). To enhance the properties and performance, polymeric electrode materials can be modified suitably by metal oxides and carbon materials resulting in a composite that helps in the collection and accumulation of charges due to large surface area. The carbon-polymer nanocomposites assist in overcoming the difficulties arising in achieving the high performance of polymeric compounds and deliver high-performance composites that can be used in electrochemical energy storage devices. Carbon-based polymer nanocomposites have both advantages and disadvantages, so in this review, attempts are made to understand their synergistic behavior and resulting performance. The three electrochemical energy storage systems and the type of electrode materials used for them have been studied here in this article and some aspects for example morphology, exterior area, temperature, and approaches have been observed to influence the activity of electrochemical methods. This review article evaluates and compiles reported data to present a significant and extensive summary of the state of the art.

SOC Prediction Research of VRB Based on Elman Neural Network

2016 ◽  
Vol 826 ◽  
pp. 118-122 ◽  
Author(s):  
Hang Xing Han ◽  
Jin Quan Wang ◽  
Kai Chen ◽  
Hao Jie Yan
Keyword(s):  
Neural Network ◽  
Energy Storage ◽  
Bp Neural Network ◽  
Vanadium Redox Flow Battery ◽  
Energy Storage Devices ◽  
Elman Neural Network ◽  
Storage Devices ◽  
Non Linear ◽  
Micro Grid ◽  
Non Linear System

As an important part of the micro-grid, the energy storage devices are playing an important role to stabilize power and energy fluctuations of micro-grid system, improve the stability and schedulability of the system and the quality of electricity. All-Vanadium Redox Flow Battery (VRB) has been more and more used because of its advantages on environmentally friendly, long cycle life, safety and reliability, achieving economies of scale energy storage and so on. State of Charge (SOC) prediction is an important part to the Power Control System (PCS) and Energy Management System (EMS) of the energy storage devices. This paper established a SOC prediction model of VRB based on Elman Neural Network because Neural Network has the characteristics of non-linear and self-learning to simulate external characteristic of VRB which is a highly non-linear system. Then we trained the Elman Neural Network with the experimental data. The result shows that this method has a high accuracy. By contrast with the BP neural network, the prediction is better than Back Propagation (BP)Neural Network.

Carbon Nanomaterials for Applications on Supercapacitors

MRS Advances ◽  
2017 ◽  
Vol 2 (54) ◽  
pp. 3283-3289
Author(s):  
Youning Gong ◽  
Qiang Fu ◽  
Chunxu Pan
Keyword(s):  
Energy Storage ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Carbon Nanospheres ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
The Past ◽  
Synthetic Routes ◽  
And Storage ◽  
Carbon Based

ABSTRACTSupercapacitor is a newly-developed device for electrochemical energy storage with high power density, long life span, as well as rapid capture and storage of energy. Carbon-based materials, from carbon nanospheres, nanotubes and nanofibers to graphene, are the most commonly used electrode materials for supercapacitors. Our group has engaged in the research of carbon nanomaterials over the past decade. Herein we summarize some typical carbon nanomaterials and their synthetic routes based on our published works, which is expected to provide the theoretical and experimental basis for further applications on carbon-based energy storage devices.

Important roles of graphene edges in carbon-based energy storage devices

2013 ◽  
Vol 22 (2) ◽  
pp. 183-194 ◽  
Author(s):  
Yoong Ahm Kim ◽  
Takuya Hayashi ◽  
Jin Hee Kim ◽  
Morinobu Endo
Keyword(s):  
Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Carbon Based

scholarly journals Applications of Carbon Based Materials in Developing Advanced Energy Storage Devices

2021 ◽  
Author(s):  
Maria Tariq ◽  
Tajamal Hussain ◽  
Adnan Mujahid ◽  
Mirza Nadeem Ahmad ◽  
Muhammad Imran Din ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Resources ◽  
Energy Requirements ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Nano Science ◽  
Increasing Demand ◽  
And Storage ◽  
Carbon Based

With the increasing pressure of population, the energy demand is growing explosively. By 2050, it is expected that the world population may reach to about 9 billion which may result in the increase of energy requirement to about 12.5 trillion watts. Due to increasing pressures of population, industries and technology, concerns to find possibilities to cope with increasing demand of energy resources, arise. Although the renewable energy resources including fossil fuels, wind, water and solar energy have been used for a long time to fulfill the energy requirements, but they need efficient conversions and storage techniques and are responsible for causing environmental pollution due to greenhouse gases as well. It is thus noteworthy to develop methods for the generation and storage of renewable energy devices that can replace the conventional energy resources to meet the requirement of energy consumption. Due to high energy demands, the sustainable energy storage devices have remained the subject of interest for scientists in the history, however, the traditional methods are not efficient enough to fulfill the energy requirements. In the present era, among other variety of advanced treatments, nano-sciences have attracted the attention of the scientists. While talking about nano-science, one cannot move on without admiring the extraordinary features of carbon nanotubes (CNTs) and other carbon based materials. CNTs are on the cutting edge of nano science research and finding enormous applications in energy storage devices. Excellent adsorption capabilities, high surface area, better electrical conductivity, high mechanical strength, corrosion resistance, high aspect ratio and good chemical and physical properties of CNTs have grabbed tremendous attention worldwide. Their charge transfer properties make them favorable for energy conversion applications. The limitation to the laboratory research on CNTs for energy storage techniques due to low specific capacitance and limited electrochemical performance can be overcome by surface functionalization using surface functional groups that can enhance their electrical and dispersion properties. In this chapter, ways CNTs employed to boost the abilities of the existing material used to store and transfer of energy have been discussed critically. Moreover, how anisotropic properties of CNTs play important role in increasing the energy storage capabilities of functional materials. It will also be discussed how various kinds of materials can be combined along CNTs to get better results.

scholarly journals Manganese Oxide Carbon-Based Nanocomposite in Energy Storage Applications

Solids ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 232-248
Author(s):  
Mulugeta Wayu
Keyword(s):  
Energy Storage ◽  
Manganese Oxide ◽  
Electrode Materials ◽  
Active Surface Area ◽  
Synthesis Methods ◽  
Energy Storage Devices ◽  
Capacitive Performance ◽  
Practical Applications ◽  
Storage Devices ◽  
Carbon Based

Global increasing demand in the need of energy leads to the development of non-conventional, high power energy sources. Supercapacitors (SCs) are one of the typical non-conventional energy storage devices which are based on the principle of electrochemical energy conversion. SCs are promising energy storage devices for better future energy technology. Increasing progress has been made in the development of applied and fundamental aspects of SCs. Manganese oxide electrode materials have been well studied; however, their capacitive performance is still inadequate for practical applications. Recent research is mainly focused on enhancing manganese oxide capacitive performance through the incorporation of electrically conductive materials and by controlling its morphology to reveal a more active surface area for redox reactions. In this review, progress in the applications of manganese oxide carbon-based materials towards the development of highly effective SCs is briefly discussed. In this regard, manganese oxide carbon-based nanocomposites synthesis methods and techniques used to approximate the capacitance of electrode materials are discussed.

scholarly journals Recent development of carbon based materials for energy storage devices

2019 ◽  
Vol 2 (3) ◽  
pp. 417-428 ◽  
Author(s):  
Sajid Iqbal ◽  
Halima Khatoon ◽  
Ashiq Hussain Pandit ◽  
Sharif Ahmad
Keyword(s):  
Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Carbon Based
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